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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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10-01-2001 дата публикации

УСТРОЙСТВО СОГЛАСОВАНИЯ ОБЪЕКТОВ

Номер: RU0000016521U1

1. Устройство согласования объектов, содержащее блок питания, фильтры, усилитель, аналого-цифровой преобразователь, микроконтроллер и устройство развязки и согласования уровней, отличающееся тем, что на входе в фильтр подключен усилитель-ограничитель. 2. Устройство согласования объектов по п.1, отличающееся тем, что усилитель-ограничитель, фильтр и нормирующий усилитель смонтированы на плате аналоговой обработки, а аналого-цифровой преобразователь, микроконтроллер и устройство развязки и согласования уровня - на плате цифровой обработки. (19) RU (11) 16 521 (13) U1 (51) МПК E21B 45/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2000124698/20, 29.09.2000 (24) Дата начала отсчета срока действия патента: 29.09.2000 (46) Опубликовано: 10.01.2001 (72) Автор(ы): Григашкин Г.А. (73) Патентообладатель(и): Закрытое акционерное общество Научно-производственная фирма "Самарские горизонты" U 1 1 6 5 2 1 R U Ñòðàíèöà: 1 ru CL U 1 (57) Формула полезной модели 1. Устройство согласования объектов, содержащее блок питания, фильтры, усилитель, аналого-цифровой преобразователь, микроконтроллер и устройство развязки и согласования уровней, отличающееся тем, что на входе в фильтр подключен усилитель-ограничитель. 2. Устройство согласования объектов по п.1, отличающееся тем, что усилитель-ограничитель, фильтр и нормирующий усилитель смонтированы на плате аналоговой обработки, а аналого-цифровой преобразователь, микроконтроллер и устройство развязки и согласования уровня - на плате цифровой обработки. 1 6 5 2 1 (54) УСТРОЙСТВО СОГЛАСОВАНИЯ ОБЪЕКТОВ R U Адрес для переписки: 443125, г.Самара, а/я 9724, Григашкину Г.А. (71) Заявитель(и): Закрытое акционерное общество Научно-производственная фирма "Самарские горизонты" U 1 U 1 1 6 5 2 1 1 6 5 2 1 R U R U Ñòðàíèöà: 2 RU FD 16 521 U1 RU 16 521 U1 RU 16 521 U1 RU FA 16 521 U1 RU DR 16 521 U1 RU 16 521 U1

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10-09-2004 дата публикации

ТАБЛО БУРИЛЬЩИКА

Номер: RU0000040390U1

Табло бурильщика, включающее управляющий компьютер, расположенный в стационарном помещении, и монитор бурильщика в защитном корпусе, отличающееся тем, что управляющий компьютер снабжен видеокартой, соединенной с модулятором телевизионного передатчика, а монитором бурильщика служит телевизионный приемник, защитный корпус которого выполнен термостатированным со схемой поддержания заданных режимов температуры и снабжен разъемами для подключения питания и антенны, лицевая часть защитного корпуса выполнена прозрачной. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 40 390 (13) U1 (51) МПК E21B 45/00 (2000.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2004112375/22 , 23.04.2004 (24) Дата начала отсчета срока действия патента: 23.04.2004 (46) Опубликовано: 10.09.2004 (73) Патентообладатель(и): Общество с ограниченной ответственностью Научно-производственная организация "Новые Технологии Нефтедобычи" (RU) U 1 4 0 3 9 0 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Табло бурильщика, включающее управляющий компьютер, расположенный в стационарном помещении, и монитор бурильщика в защитном корпусе, отличающееся тем, что управляющий компьютер снабжен видеокартой, соединенной с модулятором телевизионного передатчика, а монитором бурильщика служит телевизионный приемник, защитный корпус которого выполнен термостатированным со схемой поддержания заданных режимов температуры и снабжен разъемами для подключения питания и антенны, лицевая часть защитного корпуса выполнена прозрачной. 4 0 3 9 0 (54) ТАБЛО БУРИЛЬЩИКА R U Адрес для переписки: 452602, Республика Башкортостан, г. Октябрьский, а/я 12, ОС 2, ООО Научно-производственная организация "Новые Технологии Нефтедобычи" (72) Автор(ы): Сергеев В.Л. (RU) , Андрианов О.П. (RU) , Исмагилов М.А. (RU) RU 5 10 15 20 25 30 35 40 45 50 40 390 U1 Предлагаемое решение используется при бурении скважин и предназначено для приема быстро меняющейся информации в ...

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27-07-2010 дата публикации

СКВАЖИННЫЙ ФИЛЬТР

Номер: RU0000096395U1

1. Скважинный фильтр, содержащий ниппель, муфту и трубу, содержащую равномерно расположенные с определенным шагом между ними на ее боковой поверхности отверстия, отличающийся тем, что отношение шага расположения отверстий к их диаметру в осевом направлении выполнено в диапазоне: 1,5…20, а угол между отверстиями в диапазоне от 15 до 90°. 2. Скважинный фильтр по п.1, отличающийся тем, что отверстия расположены рядами. 3. Скважинный фильтр по п.1, отличающийся тем, что отверстия расположены в шахматном порядке. 4. Скважинный фильтр по п.1, отличающийся тем, что отверстия расположены по спирали. 5. Скважинный фильтр по п.1, отличающийся тем, что отверстия выполнены круглой формы. 6. Скважинный фильтр по п.1, отличающийся тем, что отверстия выполнены некруглой формы. 7. Скважинный фильтр по п.1, отличающийся тем, что отверстия заглушены герметичными срезаемыми пробками. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 96 395 (13) U1 (51) МПК E21B 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2010102699/22, 27.01.2010 (24) Дата начала отсчета срока действия патента: 27.01.2010 (45) Опубликовано: 27.07.2010 (73) Патентообладатель(и): Соловьев Эдуард Федорович (RU), Варламов Сергей Евгеньевич (RU) R U Адрес для переписки: 443115, г.Самара, а/я 4783, С.Е. Варламову (72) Автор(ы): Соловьев Эдуард Федорович (RU), Варламов Сергей Евгеньевич (RU) 9 6 3 9 5 R U Ñòðàíèöà: 1 ru CL U 1 Формула полезной модели 1. Скважинный фильтр, содержащий ниппель, муфту и трубу, содержащую равномерно расположенные с определенным шагом между ними на ее боковой поверхности отверстия, отличающийся тем, что отношение шага расположения отверстий к их диаметру в осевом направлении выполнено в диапазоне: 1,5…20, а угол между отверстиями в диапазоне от 15 до 90°. 2. Скважинный фильтр по п.1, отличающийся тем, что отверстия расположены рядами. 3. Скважинный фильтр по п.1, отличающийся тем, что отверстия ...

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08-08-2018 дата публикации

Силоизмерительный датчик крутящего момента ротора буровой установки

Номер: RU0000182227U1

Полезная модель относится к области эксплуатации и обслуживания буровых установок и предназначена для контроля крутящего момента роторного стола на буровых установках с цепным приводом. Силоизмерительный датчик крутящего момента ротора буровой установки включает металлическое основание, на котором закреплен первичный преобразователь неэлектрических величин, связанный с блоком электроники для обработки данных и зубчатое колесо с шагом зубьев, соответствующим шагу звеньев приводной цепи, входящей в зацепление с зубьями зубчатого колеса. Согласно полезной модели зубчатое колесо закреплено с помощью двух симметрично расположенных по бокам зубчатого колеса упругих элементов – рессор. Ось вращения зубчатого колеса закреплена на загнутых вверх упругих элементах рессор, а свободные концы горизонтальных участков рессор жестко закреплены на поворотной площадке, взаимодействующей с первичным преобразователем через тяговый палец. Техническим результатом полезной модели является повышение надежности за счет устойчивости к скачкообразным пусковым нагрузкам и знакопеременным нагрузкам при изменении направления движения приводной цепи. 3 з.п. ф-лы; 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 182 227 U1 (51) МПК G01L 3/02 (2006.01) E21B 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01L 3/02 (2018.05); E21B 45/00 (2018.05) (21)(22) Заявка: 2018123024, 25.06.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью Научно-производственная компания "Геоэлектроника сервис" (RU) Дата регистрации: 08.08.2018 (56) Список документов, цитированных в отчете о поиске: RU 111649 U1, 20.12.2011. RU (45) Опубликовано: 08.08.2018 Бюл. № 22 (54) Силоизмерительный датчик крутящего момента ротора буровой установки (57) Реферат: Полезная модель относится к области двух симметрично расположенных по бокам эксплуатации и обслуживания буровых установок зубчатого колеса ...

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02-10-2018 дата публикации

Силоизмерительный датчик реактивного момента на столе ротора буровой установки

Номер: RU0000183741U1

Полезная модель относится к буровой технике, а именно к буровым установкам, на которых в процессе бурения необходимо измерять крутящий момент на роторе, и используется в буровых установках с цепным и карданным приводом ротора и при турбинном бурении. Силоизмерительный датчик реактивного момента на столе ротора буровой установки включает силоизмеритель, связанный посредством передачи со столом ротора. Согласно полезной модели он содержит соединенные между собой двухстороннюю проушину 1 для жесткого крепления датчика к основанию буровой установки, тензометрический датчик 3 силы с блоком 4 электроники, талреп 5 с воротком 6 для натяжения цепи 7 привода и двухстороннюю проушину 8 для жесткого крепления к столу 9 ротора буровой установки. Техническим результатом полезной модели является упрощение процесса измерения реактивного момента на столе ротора буровой установки. 4 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 183 741 U1 (51) МПК G01L 3/02 (2006.01) E21B 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01L 3/02 (2018.08); E21B 45/00 (2018.08) (21)(22) Заявка: 2018127682, 27.07.2018 (24) Дата начала отсчета срока действия патента: 02.10.2018 Приоритет(ы): (22) Дата подачи заявки: 27.07.2018 696314 A1, 05.11.1979. RU 2179632 C2, 20.02.2002. RU 111649 U1, 20.12.2011. RU 126828 U1, 10.04.2013. US 4584884 A1, 29.04.1986. (45) Опубликовано: 02.10.2018 Бюл. № 28 R U (54) Силоизмерительный датчик реактивного момента на столе ротора буровой установки (57) Реферат: Полезная модель относится к буровой технике, двухстороннюю проушину 1 для жесткого а именно к буровым установкам, на которых в крепления датчика к основанию буровой процессе бурения необходимо измерять крутящий установки, тензометрический датчик 3 силы с момент на роторе, и используется в буровых блоком 4 электроники, талреп 5 с воротком 6 для установках с цепным и карданным приводом натяжения цепи 7 привода и двухстороннюю ротора и ...

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21-10-2019 дата публикации

Датчик уровня

Номер: RU0000193245U1

Техническое решение относится к акустическим методам измерения и контроля и предназначено для определения уровня жидкости в скважинах, в том числе нефтедобывающих.Технический результат вышеприведенной задачи достигается за счет создания датчика уровня, состоящего из корпуса, с одного торца которого расположена муфта и преобразователь акустического сигнала в электрический, а с другого - механический клапан для создания зондирующего акустического сигнала, отличающийся тем, что в датчике уровня размещен контроллер с радиоканалом для передачи данных и NFC-метка. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 193 245 U1 (51) МПК E21B 47/04 (2012.01) G01F 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК E21B 47/04 (2019.05); G01F 23/00 (2019.05) (21)(22) Заявка: 2019106194, 04.03.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "МГТ ПРОЕКТ СПБ" (RU) Дата регистрации: 21.10.2019 (45) Опубликовано: 21.10.2019 Бюл. № 30 1 9 3 2 4 5 R U (54) ДАТЧИК УРОВНЯ (57) Реферат: Техническое решение относится к акустическим методам измерения и контроля и предназначено для определения уровня жидкости в скважинах, в том числе нефтедобывающих. Технический результат вышеприведенной задачи достигается за счет создания датчика уровня, состоящего из корпуса, с одного торца Стр.: 1 которого расположена муфта и преобразователь акустического сигнала в электрический, а с другого - механический клапан для создания зондирующего акустического сигнала, отличающийся тем, что в датчике уровня размещен контроллер с радиоканалом для передачи данных и NFC-метка. U 1 U 1 Адрес для переписки: 195256, Санкт-Петербург, пр. Науки, 53, кв. 86, для Корытовской Г.Ю. 1 9 3 2 4 5 (56) Список документов, цитированных в отчете о поиске: RU 13391 U1, 10.04.2000. RU 2282718 C1, 27.08.2006. RU 2163293 C1, 20.02.2001. RU 17727 U1, 20.04.2001. RU 2654370 C1, 17.05.2018. US 4793178 A1, 27.12. ...

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18-10-2012 дата публикации

Mechanical specific energy drilling system

Номер: US20120261190A1
Принадлежит: Individual

A mechanical specific energy downhole drilling assembly having a bottomhole assembly including drill pipe and a drill bit, a weight on bit and torque sub for sensing torque, weight on bit and revolutions per minute of the drill bit; a command and control sub for receiving input from the weight on bit and torque sub for determining instantaneous mechanical specific energy of the downhole drilling assembly and an anti-stall tool responsive to real time mechanical specific energy information from the command and control sub to adjust the weight on the drill bit to maximize rate of penetration of the drill bit.

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27-06-2013 дата публикации

System and method for surface steerable drilling

Номер: US20130161097A1
Принадлежит: Hunt Energy Enterprises LLC

A system and method for surface steerable drilling are provided. In one example, the method includes monitoring operating parameters for drilling rig equipment and bottom hole assembly (BHA) equipment for a BHA, where the operating parameters control the drilling rig equipment and BHA equipment. The method includes receiving current inputs corresponding to performance data of the drilling rig equipment and BHA equipment during a drilling operation and determining that an amount of change between the current inputs and corresponding previously received inputs exceeds a defined threshold. The method further includes determining whether a modification to the operating parameters has occurred that would result in the amount of change exceeding the defined threshold and identifying that a problem exists in at least one of the drilling rig equipment and BHA equipment if no modification has occurred to the operating parameters. The method includes performing a defined action if a problem exists.

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12-09-2013 дата публикации

SYSTEM AND METHOD OF CONFIGURING DRILLING TOOLS UTILIZING A CRITICAL DEPTH OF CUT CONTROL CURVE

Номер: US20130238245A1
Принадлежит:

According to some embodiments of the present disclosure, a method of determining a critical depth of cut of a drill bit comprises selecting a radial swath associated with an area of a bit face of a drill bit. The method further comprises identifying a plurality of cutting elements disposed on the bit face that each include at least a portion located within the radial swath. The method also comprises identifying a depth of cut controller (DOCC) disposed on the bit face and configured to control a depth of cut of the portions of the plurality of cutting elements located within the radial swath. The method additionally comprises calculating a critical depth of cut associated with the radial swath and DOCC based on a depth of cut associated with each portion of the plurality of cutting elements located within the radial swath and controlled by the DOCC. 1. A method of determining a critical depth of cut of a drill bit comprising:selecting a radial swath associated with an area of a bit face of a drill bit;identifying a plurality of cutting elements disposed on the bit face that each include at least a portion located within the radial swath;identifying a depth of cut controller (DOCC) disposed on the bit face and configured to control a depth of cut of the portions of the plurality of cutting elements located within the radial swath; andcalculating a critical depth of cut associated with the radial swath and DOCC based on a depth of cut associated with each portion of the plurality of cutting elements located within the radial swath and controlled by the DOCC.2. The method of claim 1 , further comprising configuring the DOCC according to the calculated critical depth of cut.3. The method of claim 1 , further comprising:calculating an axial underexposure between the DOCC and each of the portions of the plurality of cutting elements located within the radial swath; andcalculating the depth of cut associated with each portion of the plurality of cutting elements located ...

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03-10-2013 дата публикации

METHOD AND SYSTEM OF CALCULATING A FAULT THROW

Номер: US20130261978A1
Принадлежит: Landmark Graphics Corporation

Calculating a fault throw. At least some embodiments are methods of determining an underground surface or horizon including: identifying an occluded zone residing between a first and second faults, the occluded zone not penetrated by an actual borehole, and the first and second faults intersect an expected location of the surface; calculating a fault throw for the first fault; and calculating the underground surface using the fault throw. Calculating the fault throw may include: calculating a first pseudo depth at a first end of the first fault, the calculating the first pseudo depth using at least one actual depth value that resides across the first fault from the first end; calculating a second pseudo depth at a second end of the first fault, the second end distinct from the first end; and determining the fault throw using the first and second pseudo depths. 1. A method comprising: identifying an occluded zone residing between a first and second faults, the occluded zone not penetrated by an actual borehole, and the first and second faults intersect an expected location of the surface;', calculating a first pseudo depth at a first end of the first fault, the calculating the first pseudo depth using at least one actual depth value that resides across the first fault from the first end;', 'calculating a second pseudo depth at a second end of the first fault, the second end distinct from the first end; and', 'determining the fault throw using the first and second pseudo depths;, 'calculating a fault throw for the first fault by, 'calculating the underground surface using the fault throw for the first fault and the actual depth values from actual boreholes., 'determining an underground surface using a plurality of actual depth values from actual boreholes, the determining comprising2. The method of wherein calculating the first pseudo depth further comprises interpolating the first pseudo depth using a plurality of actual depth values claim 1 , wherein each actual ...

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30-01-2014 дата публикации

OPTIMIZED DRILLING

Номер: US20140027174A1
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

The invention provides a method of optimising the rate of penetration of a hydraulically or pneumatically powered rotor and stator driven drill as it drills a wellbore into the earth, the method comprising: (a) measuring a first set of rotor and stator operating parameters including the weight applied to the drill bit, the speed of rotation of the rotor and rotor torque for a first period of time, (b) generating a first set of relationships from the first set of operating parameters to enable the rotor speed and rotor torque to be predicted over a range of operating parameter values, (c) determining the rate of penetration for the first period of time from measurements of weight applied to the bit and rotation speed of the bit, (d) determining whether any other combination of weight applied to bit and rotation speed of bit, provided by the relationships determined in step (b) are capable of providing a greater rate of penetration, and (e) adjusting at least one operating parameter to move the weight applied to bit and/or speed of rotation of bit towards the combination which provides a first greater rate of penetration. 1. A method of optimising the rate of penetration of a hydraulically or pneumatically powered rotor and stator driven drill as it drills a wellbore into the earth , the method comprising:(a) measuring a first set of rotor and stator operating parameters including the weight applied to the drill bit, the speed of rotation of the rotor and rotor torque for a first period of time,(b) generating a first set of relationships from the first set of operating parameters to enable the rotor speed and rotor torque to be predicted over a range of operating parameter values,(c) determining the rate of penetration for the first period of time from measurements of weight applied to the bit and rotation speed of the bit,(d) determining whether any other combination of weight applied to bit and rotation speed of bit, provided by the relationships determined in step ...

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01-01-2015 дата публикации

Formation dip geo-steering method

Номер: US20150000980A1
Автор: Danny T. Williams
Принадлежит: Individual

A geo-steering method for drilling a formation penetrated by multiple wells. The method comprises computing a stratigraphic target formation window, computing a target line utilizing an instantaneous formation dip angle correlated to offset well data from an offset well. The method further comprises calculating a target window from actual drilling data overlaying the target window over the stratigraphic target formation window to drill on the target line, identifying target deviation from target line using overlaid windows, generating a target deviation flag when the overlaid results differ above or below the stratigraphic target formation window or user inputted target deviation flag parameters, wherein the target deviation flag stops drilling by the rig. The method performs another actual survey, creating a new window, starting drilling, creating a new target window, overlaying the two windows and monitoring for target deviations, repeating the process until target depth is reached.

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01-01-2015 дата публикации

Borehole Array for Ranging and Crosswell Telemetry

Номер: US20150002306A1
Принадлежит: Halliburton Energy Services, Inc.

An example method includes polling a plurality of reference nodes distributed along one or more reference wells. The method also includes steering a bottomhole assembly in another well based at least in part on information obtained from said polling. A related system includes a plurality of reference nodes distributed along one or more reference wells. The system also includes a bottomhole assembly in another well. The system also includes a surface controller. The surface controller polls the plurality of reference nodes to obtain position information regarding the bottomhole assembly and directs a steering module of the bottomhole assembly based on the obtained position information.

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04-01-2018 дата публикации

Multi-Directionally Rotating Downhole Drilling Assembly and Method

Номер: US20180003025A1
Автор: Smith Gary
Принадлежит:

Embodiments of a downhole drilling assembly generally include a rotatable lower drilling assembly, a rotatable upper drilling assembly, and a drill bit, wherein the upper drilling assembly contains a mud motor adapted for clockwise rotation of its stator and counter-clockwise rotation of its rotor, whereby the lower drilling assembly is rotatable in the opposite direction of the upper drilling assembly or maintainable in a non-rotating state. The apparatus further includes sensors adapted to continuously measure physical properties and/or drilling parameters and a mechanism for continuously transmitting information relating thereto to the surface. 1. A downhole drilling assembly for use in a subsurface wellbore , comprising:a rotatable lower drilling assembly;a rotatable upper drilling assembly; and [ a first motor adapted to provide rotational force to said drill bit in a first direction; and', 'a sensor assembly comprising one or more sensors; and, 'said lower drilling assembly comprises, 'a second motor adapted to provide rotational force to said lower drilling assembly in a second direction; wherein:', 'said upper drilling assembly comprises, 'said upper drilling assembly is adapted to provided rotational force directed in said first direction and rotational force directed in said second direction to said lower drilling assembly; and', rotating in said first direction;', 'rotating in said second direction; and', 'not rotating., 'said lower drilling assembly is adapted to be rotated, by said rotational force directed in said first direction and said rotational force directed in said second direction, in one or more rotation modes selected from the group consisting of], 'a drill bit; wherein2. The downhole drilling assembly of claim 1 , wherein said sensor assembly comprises at least one sensor selected from the group consisting of:a total gamma ray sensor;a spectral gamma ray sensoran inclination sensor;an azimuthal gamma sensor;a pressure sensor;a strain sensor; ...

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02-01-2020 дата публикации

Downhole Rate of Penetration Measurement

Номер: US20200003043A1
Принадлежит:

A method for determining a rate of penetration of a drill bit during an earth drilling operation may comprise first urging an element to extend out from a working face of the drill bit. As drilling progresses, this extended element may then be forced back into the drill bit by an internal surface of a borehole being formed. A rate at which the element retracts back into the working face may be measured to aid in estimating a rate of penetration of the drill bit into the earth. 1. A method for determining a rate of penetration of a downhole drilling operation , comprising:urging an element to extend from a working face of a drill bit; andmeasuring a rate of retraction of the element into the working face due to force from an internal surface of a borehole.2. The method of claim 1 , further comprising repeatedly alternating between urging and measuring.3. The method of claim 2 , wherein urging the element to extend is performed once a specific retraction displacement is reached.4. The method of claim 2 , wherein urging the element to extend is performed at intervals selected to increase a rate of penetration of the drill bit.5. The method of claim 2 , further comprising detecting variation in a maximum extension of the element.6. The method of claim 2 , further comprising:altering a force urging the element to extend;comparing the measured rate of retraction during application of different urging forces; andprojecting the compared measured rates to a point of zero rate to estimate a weight on bit.7. The method of claim 1 , wherein urging the element to extend displaces a portion of the internal surface.8. The method of claim 7 , wherein displacing the portion of the internal surface increases a rate of penetration of the drill bit.9. The method of claim 7 , wherein displacing the portion of the internal surface comprises crushing the portion.10. The method of claim 1 , wherein the internal surface of the borehole comprises a terminus of the borehole.11. The method of ...

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11-01-2018 дата публикации

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW THROUGH DRILL STRING

Номер: US20180010422A9
Принадлежит:

A device for limiting the flow of drilling fluid through a section of drill string includes a body with a hole in the periphery. Flow enters the device through one axial end, at least a portion of the flow exits through the other axial end. Some of the fluid flow can be diverted through the peripheral hole. A spring-biased axial piston may have an approximately constant force throughout its range of travel. The piston moves axially in response to the changing fluid flow rate to enable a constant amount of flow exiting the axial end of the tool to be achieved while diverting away excess flow through the side. 1. An apparatus , comprising:a housing having an axis, a radial wall with a bore extending axially through the radial wall, and an aperture formed in the radial wall, the aperture being in fluid communication with the bore;a component located inside the housing and having an orifice configured to permit axial fluid flow through the housing;a bias device located in the housing and configured to bias the component to a closed position; andthe component is movable from the closed position wherein the component is configured to substantially close the aperture in the housing to substantially block fluid flow therethrough when downhole axial fluid flow through the orifice is insufficient to overcome a bias of the bias device, and an open position wherein the component is configured to permit fluid flow through the aperture when downhole axial fluid flow through the orifice is sufficient to overcome the bias of the bias device and move the component.2. The apparatus of claim 1 , wherein downhole axial fluid flow through the orifice is configured to be unobstructed in both the closed position and the open position.3. The apparatus of claim 1 , further comprising a sleeve located between the bore of the housing and the component claim 1 , the sleeve is configured to be stationary relative to the housing claim 1 , and the component is configured to be movable relative to ...

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14-01-2021 дата публикации

METHOD FOR MEASURING SURFACE TORQUE OSCILLATION PERFORMANCE INDEX

Номер: US20210010882A1
Принадлежит:

A system and method for drilling a wellbore with a drill rig by: rotating a drillstring and a drill bit with a drill rig drive system; applying a weight of the drillstring on the drill rig; measuring surface torque oscillations of the drill string via: determining a fundamental oscillation time period; select a time window based on the fundamental oscillation time period; collecting torque present value data of the drill string for the selected time window; determining an amplitude of torque oscillation from the collected torque present value data; determining a reference torque; and dividing the determined amplitude of torque oscillation by the determined reference torque to obtain a surface torque oscillation performance index, whereby the measurement of the surface torque oscillations of the drill string is a fractional value to indicate the magnitude and severity of surface torque fluctuations of the drilling string; and modifying a drilling parameter based on the surface torque oscillation performance index. 122-. (canceled)23. A method for drilling a wellbore with a drill rig , comprising:rotating a drill string and a drill bit with a drill rig drive system; andmeasuring surface torque oscillations of the drill string, comprising:determining a fundamental oscillation time period;selecting a time window based on the fundamental oscillation time period;collecting torque present value data of the drill string for the selected time window;determining an amplitude of torque oscillation from the collected torque present value data;determining a reference torque; anddividing the determined amplitude of torque oscillation by the determined reference torque to obtain a surface torque oscillation performance index, whereby the measurement of the surface torque oscillations of the drill string is a fractional value to indicate the magnitude and severity of surface torque fluctuations of the drilling string.24. The method for drilling a wellbore as claimed in claim 23 , ...

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14-01-2021 дата публикации

Processing Downhole Rotational Data

Номер: US20210011048A1
Принадлежит:

Systems and methods for processing downhole rotational data. An example method includes commencing operation of a processing device to continually calculate a downhole oscillation index by receiving downhole rotational speed data indicative of downhole rotational speed of at least a portion of a drill string during drilling operations, calculating a fundamental oscillation time period of the drill string, calculating a time length of a time window based on the fundamental oscillation time period, and processing the downhole rotational speed data encompassed within the time window. 1. An apparatus comprising:a rotation sensor operable to facilitate downhole rotational speed data indicative of downhole rotational speed of at least a portion of a drill string during drilling operations;a visual output device; and [ receiving the downhole rotational speed data;', 'calculating a fundamental oscillation time period of the drill string;', 'calculating a time length of a time window based on the fundamental oscillation time period; and', 'processing the downhole rotational speed data encompassed within the time window; and, 'calculate a downhole oscillation index by, 'output the downhole oscillation index for display on the visual output device to be viewed by a drill rig operator, wherein the drill rig operator changes parameters of the drilling operations based on the downhole oscillation index displayed on the visual output device., 'a processing device comprising a processor and a memory storing computer program code, wherein the processing device is operable to continually2. The apparatus of wherein processing the downhole rotational speed data comprises:calculating a highest rotational speed variation of the downhole rotational speed data encompassed within the time window; anddividing the highest rotational speed variation by a predetermined reference rotational speed.3. The apparatus of wherein calculating the highest rotational speed variation comprises:finding a ...

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03-02-2022 дата публикации

DOWNHOLE TOOL SENSOR ARRANGEMENTS AND ASSOCIATED METHODS AND SYSTEMS

Номер: US20220034223A1
Принадлежит:

A downhole sensor system may include at least two accelerometers having at least two axes of measurement. The at least two accelerometers may include a first accelerometer in a first position and a second accelerometer in a second position. A first axis of the second accelerometer may be substantially coaxial with a first axis of the first accelerometer and a second axis of the second accelerometer may be parallel to and offset from a second corresponding axis of the first accelerometer. The downhole sensor system may further include at least one processor, and at least one non-transitory computer-readable storage medium storing instructions thereon that when executed by the at least one processor may cause the processor to measure a first acceleration from the first accelerometer and measure a second acceleration from the second accelerometer. When executed by the at least one processor the instructions may also cause the processor to calculate acceleration properties of the downhole sensor system based on acceleration measurements of the first accelerometer and the second accelerometer. 1. A downhole tool comprising:a housing; and a first accelerometer in a first position; and', 'a second accelerometer in a second position, wherein a first axis of the second accelerometer is coaxial with a first axis of the first accelerometer and a second axis of the second accelerometer is parallel to and offset from a second corresponding axis of the first accelerometer., 'at least two accelerometers having at least two axes of measurement, the at least two accelerometers comprising, 'a sensor structure disposed in the housing, the sensor structure comprising2. The downhole tool of claim 1 , wherein the first axis of the second accelerometer and the first axis of the first accelerometer are coaxial with a corresponding axis of the downhole tool.3. The downhole tool of claim 2 , wherein the first accelerometer and the second accelerometer are coupled to a sensor board.4. The ...

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18-01-2018 дата публикации

Bore measuring tool

Номер: US20180016887A1
Принадлежит: Geonomic Technologies Inc

An apparatus for measuring a well bore wall comprises a casing connectable in line with a tool string having a central passage therethrough and extending between first and second ends and a plurality of longitudinally extending biasing elements extending longitudinally along the casing between first and second ends wherein each of the second end of the biasing elements is connected to the casing. The apparatus further comprises a sensor located along a midpoint of each of the biasing elements and an engagement body located within the central passage of the casing longitudinally displaceable therein between first and second positions, wherein the engagement body is connected to the first end of each of the biasing elements such that displacement of the engagement body within the central passage from the first to the second positions compresses and radially extends the biasing elements so as to engage the sensors against the well bore wall.

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10-02-2022 дата публикации

Tape Winch, Drilling Progress Measurement and Hole Depth Measurement

Номер: US20220042412A1
Принадлежит:

Winch () has a load bearing tape () to advance into a borehole (). Hole depth can be determined by subtracting a sensed height () above ground surface () from total depth () measured. Can include a height above ground sensor () and a tape distance measurer (). Depth of water or watery mud or muddy water () can be sensed, such as by a pressure sensor () on a weight or in a sensor device at or near the tape leading end. A heater () can warm the tape. A cover or housing () can be provided for the winch or spool. The tape can include wires or fibre optics () embedded in or applied to a surface of the tape () and/or apertures or embedded or surface applied markers/indicators () along a length thereof e.g. for reading by an optical or magnetic sensor. 1. A winch apparatus including a load bearing member in the form of a flexible elongate tape , and a spool onto which the load bearing member is wound in and from which the load bearing member is payed out , the load bearing member including a tape.2. The winch apparatus according to claim 1 , wherein the tape is flat or curved in cross section.3. The winch apparatus according to claim 1 , the tape having a structure of strands orientated in multi directions.4. The winch apparatus of claim 3 , wherein the multi directions include a combination of two or more of longitudinal strands claim 3 , transverse strands claim 3 , diagonal strands claim 3 , filaments or ribbons of material.5. The winch apparatus of claim 4 , wherein the longitudinal strands claim 4 , transverse strands claim 4 , diagonal strands claim 4 , filaments or ribbons claim 4 , or combinations of two or more thereof claim 4 , are bonded or fused together.6. The winch apparatus according to claim 5 , wherein the longitudinal strands claim 5 , transverse strands claim 5 , diagonal strands claim 5 , filaments or ribbons are bonded in a plastics material claim 5 , bonded in an adhesive material or are heat sealed together claim 5 , or combinations of two or more ...

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28-01-2021 дата публикации

CROSS-PLOT ENGINEERING SYSTEM AND METHOD

Номер: US20210025271A1
Принадлежит:

In one embodiment, a method includes facilitating a real-time cross-plot display of drilling-performance data for a current well. The real-time cross-plot display includes a plurality of data plots represented on a common graph such that each data plot specifying at least two drilling parameters. Each data plot includes a plurality of data points such that each data point is expressible as Cartesian coordinates in terms of the at least two drilling parameters. The method further includes receiving new channel data for the current well from a wellsite computer system. In addition, the method includes creating, from the new channel data, new data points for the plurality of data plots as the new channel data is received. Moreover, the method includes updating the plurality of data plots with the new data points as the new data points are created. 1. A method comprising:on a central computing system comprising at least one server computer, facilitating a real-time cross-plot display of drilling-performance data for a current well;wherein the real-time cross-plot display comprises a plurality of data plots represented on a common graph, each data plot specifying at least two drilling parameters;wherein each data plot comprises a plurality of data points, each data point expressible as Cartesian coordinates in terms of the at least two drilling parameters;the central computing system receiving new channel data for the current well from a wellsite computer system;the central computing system creating, from the new channel data, new data points for the plurality of data plots as the new channel data is received; andthe central computing system updating the plurality of data plots with the new data points as the new data points are created.2. The method of claim 1 , wherein claim 1 , for each of the plurality of data plots claim 1 , the central computing system maps the at least two drilling parameters to data sources for the current well.3. The method of claim 1 , ...

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29-01-2015 дата публикации

System and console for monitoring and managing well site operations

Номер: US20150029034A1
Принадлежит: Individual

A well advisor system and console for monitoring and managing well drilling and production operations. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to geologic uncertainty concerning a well being drilled, with a focus on the safety of the drilling operation.

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02-02-2017 дата публикации

Multi-Directionally Rotating Downhole Drilling Assembly and Method

Номер: US20170030183A1
Автор: Smith Gary
Принадлежит:

Embodiments of a downhole drilling assembly generally include a rotatable lower drilling assembly, a rotatable upper drilling assembly, and a drill bit, wherein the upper drilling assembly contains a mud motor adapted for clockwise rotation of its stator and counter-clockwise rotation of its rotor, whereby the lower drilling assembly is rotatable in the opposite direction of the upper drilling assembly or maintainable in a non-rotating state. The apparatus further includes sensors adapted to continuously measure physical properties and/or drilling parameters and a mechanism for continuously transmitting information relating thereto to the surface. 1. A downhole drilling assembly for use in a subsurface wellbore , comprising:a rotatable lower drilling assembly;a rotatable upper drilling assembly; and [ a first motor adapted to provide rotational force to said drill bit in a first direction; and', 'a sensor assembly comprising one or more sensors; and, 'said lower drilling assembly comprises, 'a second motor adapted to provide rotational force to said lower drilling assembly in a second direction; wherein:', 'said upper drilling assembly comprises, 'said upper drilling assembly is adapted to provided rotational force directed in said first direction and rotational force directed in said second direction to said lower drilling assembly; and', rotating in said first direction;', 'rotating in said second direction; and', 'not rotating., 'said lower drilling assembly is adapted to be rotated, by said rotational force directed in said first direction and said rotational force directed in said second direction, in one or more rotation modes selected from the group consisting of], 'a drill bit; wherein2. The downhole drilling assembly of claim 1 , wherein said sensor assembly comprises at least one sensor selected from the group consisting of:a total gamma ray sensor;a spectral gamma ray sensoran inclination sensor;an azimuthal gamma sensor;a pressure sensor;a strain sensor; ...

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17-02-2022 дата публикации

STEERABLE DRILLING BI-DIRECTIONAL COMMUNICATIONS SYSTEM AND METHODS

Номер: US20220049594A1
Принадлежит:

An apparatus and method of operating a drilling system with a directional guidance system and a drilling operation system is described. The directional guidance system and drilling operation system may engage in bi-directional communication during a slide drilling operation. This communication may be continual during the drilling operation. Parameters of the drilling instructions and the drilling operation system may be changed in response to these communications resulting in new instructions and changed slide drilling operations. 1. A method of operating a drilling system , comprising:inputting a drill plan into a directional guidance system of the drilling system, the drill plan comprising a slide drilling operation;sending a drilling instruction from the directional guidance system to a drilling execution system in communication with a BHA of the drilling system to conduct a slide drilling operation;conducting, with the drilling execution system, the slide drilling operation according to the drilling instruction;{'claim-text': ['sending a first signal from the drilling execution system to the directional guidance system comprising a parameter of the slide drilling operation;', 'assessing the first signal with the directional guidance system to determine whether the parameter is within an acceptable range;', 'if the parameter is not within the acceptable range, sending a second signal from the directional guidance system to the drilling execution system to change an aspect of the slide drilling operation; and', 'conducting, with the drilling execution system, the slide drilling operation according to the second signal before the slide drilling operation is completed.'], '#text': 'conducting bi-directional communication between the directional guidance system and the drilling execution system during the slide drilling operation, the bi-directional communication comprising:'}2. The method of claim 1 , wherein the parameter of the slide drilling operation is one of a ...

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31-01-2019 дата публикации

METHOD, SYSTEM AND COMPUTER-READABLE MEDIUM FOR AUTOMATICALLY CONTROLLING A DRILLING OPERATION

Номер: US20190032466A1
Принадлежит:

There is described a method for automatically controlling a drilling operation. The method comprises obtaining a recording of one or more controlled drilling parameters adjusted, during a first drilling operation, in response to one or more controlling drilling parameters. The method further comprises, during a second drilling operation subsequent to the first drilling operation, monitoring the one or more controlling drilling parameters. The method further comprises, during the second drilling operation, automatically adjusting the one or more controlled drilling parameters in response to the monitored one or more controlling drilling parameters by using the recording of the one or more controlled drilling parameters. Thus, by recording a driller's instructions once (during a recording phase) and automatically replaying them during successive playback phases, drilling is made more efficient and simpler. 1. A method for automatically controlling a drilling operation , comprising:obtaining a recording of one or more controlled drilling parameters adjusted, during a first drilling operation, in response to one or more controlling drilling parameters; and monitoring the one or more controlling drilling parameters; and', 'automatically adjusting the one or more controlled drilling parameters in response to the monitored one or more controlling drilling parameters by using the recording of the one or more controlled drilling parameters., 'during a second drilling operation subsequent to the first drilling operation2. The method of claim 1 , wherein obtaining the recording comprises: adjusting the one or more controlled drilling parameters in response to the one or more controlling drilling parameters; and', 'recording the one or more controlled drilling parameters as a function of the one or more controlling drilling parameters., 'during the first drilling operation3. The method of claim 1 , further comprising:obtaining a recording of an initial state of a drill bit ...

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31-01-2019 дата публикации

Method of Optimizing Drilling Ramp-Up

Номер: US20190032467A1
Принадлежит:

A method of optimizing drilling ramp-up is provided herein. More specifically, a method of ramping up a drilling operation from a static condition (0, 0) to optimum drilling parameter values (WOB*, RPM*) is provided. The method includes identifying a set of drilling control variables used in forming the wellbore. Examples include weight-on-bit (WOB) and rate of penetration (RPM). The method additionally includes selecting desired control variable values for a first identified drilling stage. The values may be generically referred to as (V, V). The method also includes increasing the drilling control variables from (0, 0) to pre-defined drilling control variable values (V, V). Preferably, Vis a WOB value while Vis a rotation speed value (RPM). The method also comprises monitoring a performance index (PI), wherein (PI) is a combination of torque (TQ) and penetration rate (RPM). The method then includes determining an optimal path to optimum drilling parameter values (WOB*, RPM*) using the Performance Index (PI). 1. A method of operating a drilling rig , comprising:(a) beginning drilling a wellbore en route to a subsurface formation using a drilling string and a drill bit;(b) during the drilling, receiving data representing at least two controllable drilling parameters;(c) after making a drill pipe connection for the drill string, or subsequent to raising the drilling bit off-bottom, lowering the drill string to a bottom of the wellbore and initiate drilling ramp-up;{'sub': 1', '2, '(d) modifying values for the controllable drilling parameters from (0,0) to a set of predefined parameter values (V, V);'}(e) monitoring a performance index (PI) of the drilling ramp-up step (d), the performance index being a combination of torque (TQ) and RPM;{'sub': 1', '2, '(f) using the Performance Index (PI), identifying optimal parameter values (V*, V*); and'}{'sub': 1', '2*, '(g) ramping up to drilling parameter values (V*, V) to drill a first interval of the wellbore.'}2. The method ...

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30-01-2020 дата публикации

TEMPERATURE-CORRECTED DISTRIBUTED FIBER-OPTIC SENSING

Номер: US20200032644A1
Принадлежит:

In distributed fiber-optic sensing within a borehole, the accuracy of correlating signal channels with depth along the borehole can be improved by taking the thermo-optic effect on the group velocity of light into account. In an example application, this allows, in turn, to more accurately localize acoustic sources via distributed acoustic sensing. Additional embodiments are disclosed. 1. A method comprising:coupling light into an optical fiber disposed in a borehole, and measuring a response signal comprising light backscattered at locations throughout a length of the optical fiber;determining a temperature profile along the borehole;based at least in part on the determined temperature profile and a wavelength of the light, determining a group velocity of the light as a function of at least one of the depth along the borehole or position along the optical fiber; andcomputationally correlating a plurality of channels within the measured response signal with respective depths along the borehole based at least in part on the determined group velocity.2. The method of claim 1 , wherein computationally correlating the plurality of channels with respective depths along the borehole comprises:computationally correlating the plurality of channels with respective positions along the optical fiber based at least in part on the determined group velocity; andcomputationally correlating positions along the optical fiber with respective depths along the borehole.3. The method of claim 2 , wherein computationally correlating the positions along the optical fiber with respective depths along the borehole is based on a length of a cable enclosing the optical fiber.4. The method of claim 3 , wherein computationally correlating the positions along the optical fiber with respective depths along the borehole comprises determining the length of the cable based at least in part on at least one of a temperature of the cable and an elongation of the cable under its own weight.5. The method ...

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04-02-2021 дата публикации

AUTONOMOUS CONNECTION MAKEUP AND EVALUATION

Номер: US20210032944A1
Принадлежит: Weatherford Technology Holdings, LLC

Embodiments of the present disclosure relate to apparatus and methods for making up and evaluating tubular threaded connections. A tong assembly may be used for making up threaded connections. A threaded connection may be made up automatically by controlling the rotation speed of the tong assembly according to measurements of torque, turns, and/or time. After a threaded connection is made up, measurements of time, torque, and/or turns may be corrected based on operating parameters. The corrected measurements may be evaluated for indications of failure, such as discontinuity, torque spikes, and torque drops. The threaded connection is then accepted or rejected based on the evaluation. 1. A method of making up a tubular joint , comprising:rotating a first tubular relative to a second tubular to make a threaded connection between the first and second tubulars using a tong assembly while measuring turns of the first tubular;correcting measurements of turns of the first tubular according to clamping commands;evaluating corrected measurements of turns of the first tubular; andaccepting or rejecting the threaded connection based on the evaluation.2. The method of claim 1 , wherein evaluating corrected measurements of turns of the first tubular comprises evaluating corrected measurements of turns of the first tubular for a discontinuity.3. The method of claim 1 , wherein claim 1 , during rotating claim 1 , the first tubular is clamped by a power tong of the tong assembly and the second tubular is clamped by a backup tong of the tong assembly.4. The method of claim 3 , further comprising measuring turns of the second tubular relative to the backup tong claim 3 , wherein correcting measurements of turns of the first tubular comprises correcting measurements of turns of the first tubular according to turns of the second tubular.5. The method of claim 1 , further comprising:measuring torque applied to the threaded connection; andwherein correcting measurements of the one or ...

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09-02-2017 дата публикации

APPARATUS AND METHODS USING DRILLABILITY EXPONENTS

Номер: US20170037721A1
Принадлежит:

Various embodiments include apparatus and methods to generate and use drillability exponents. Data acquired from downhole sensors can be used to determine drillability exponents. The drill exponents can be used in number of processes to enhance various features of a drilling operation. 5 Additional apparatus, systems, and methods are disclosed. 1. A method , comprising:sensing one or more drill bit parameters downhole, including weight-on-bit, using one or more downhole sensors;computing a drillability exponent at least partially based on the one or more parameters sensed downhole; andcontrolling a drilling-related operation as a function of the computed drillability exponent.2. The method of claim 1 , wherein controlling the drilling-related operation includes conducting managed pressure drilling.3. The method of claim 1 , wherein controlling the drilling-related operation includes conducting directional drilling.4. The method of claim 1 , wherein controlling the drilling-related operation includes determining pore pressure prediction during drilling.5. The method of claim 1 , wherein the method includes using the drillability exponent as an indicator of bit life of the drill bit.6. The method of claim 1 , wherein the method includes computing the drillability exponent at the surface of the borehole using the one or more drill bit parameters determined from the sensors disposed downhole.7. The method of claim 1 , wherein the method includes comparing the drillability exponent computed from the one or more drill bit parameters determined downhole to a determination of a drillability exponent using surface generated values of the one or more drill bit parameters.8. The method of claim 1 , wherein controlling the drilling-related operation includes using the drillability exponent as an indicator for drill-off occurring claim 1 , as an indicator of change in pressure profiles claim 1 , or as an indicator of the drill bit failing.9. The method of claim 8 , wherein an ...

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12-02-2015 дата публикации

Composite retention feature

Номер: US20150044054A1

A retention feature for use in a gas turbine engine is disclosed herein. The retention feature includes a ceramic post, an insert, and a braze layer coupling the insert to the ceramic post. The ceramic post includes a body adapted to be coupled to a turbine engine component and a head coupled to the body. The insert is arranged in a space formed in the head and the braze layer extends from the ceramic post to the insert to bond the insert to the ceramic post.

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06-02-2020 дата публикации

Systems and Methods for Controlling a Drilling Path Based on Drift Estimates

Номер: US20200040657A1
Принадлежит:

In a drilling system, a control system coupled to a drilling rig controls a bottom hole assembly (BHA) to drill a borehole through a geological formation along a drilling path. The control system determines a present position of the BHA and calculates a toolface vector to create a convergence path from the present position of the BHA to a desired target path. The control system also receives geological information and compensates the toolface vector to account for an estimated geologic formation drift. The control system causes at least one control parameter to be modified in order to alter a drilling direction of the BHA based on the calculated toolface vector and transmits the at least one control parameter to the drilling rig to target the BHA in accordance with the calculated toolface vector. The control system iteratively performs this process until convergence with the desired target path is achieved. 1. A method for controlling a drilling operation , comprising:(a) determining, by a computer system coupled to a drilling rig, a present position of a bottom hole assembly (BHA) in a borehole;(b) calculating, by the computer system, a toolface vector needed for the borehole to converge with a desired target path;(c) determining, by the computer system, a compensated toolface vector that is responsive to the toolface vector and a geological formation drift estimate;(d) orienting the BHA responsive to the compensated toolface vector;(e) repeating steps (a)-(d) until the borehole converges with the desired target path.2. The method of claim 1 , wherein the toolface vector is calculated using information comprising build rate claim 1 , present error vector claim 1 , and well plan information.3. The method of claim 2 , wherein the calculating the toolface vector step further comprises the steps of:determining, by the computer system, a look ahead point that is a fixed distance ahead of the BHA; andcalculating, by the computer system, a direction of drilling toward the ...

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06-02-2020 дата публикации

Machine-Learning Based Drilling Models for A New Well

Номер: US20200040719A1
Принадлежит:

The disclosure relates to a method for performing a drilling operation in a subterranean formation of a field. The method includes obtaining, prior to the drilling operation, a target well data set specifying a target well to be drilled, selecting, from a set of existing wells, a number of analog wells that satisfy a pre-determined similarity criterion with respect to the target well, generating, from a number of analog well data sets of the analog wells, a training data set for the target well, where the training data set includes a rate-of-penetration (ROP) profile for each analog well, generating, using a machine-learning algorithm and based on the training data set, a drilling model that predicts the ROP profile of the target well, and performing, based on the drilling model, modeling of the drilling operation to generate a predicted ROP profile of the target well. 1. A method for performing a drilling operation in a subterranean formation of a field , comprising:obtaining, prior to the drilling operation, a target well data set specifying a target well to be drilled;selecting, from a plurality of existing wells, a plurality of analog wells that satisfy a pre-determined similarity criterion with respect to the target well;generating, from a plurality of analog well data sets of the plurality of analog wells, a training data set for the target well, wherein the training data set comprises a rate-of-penetration (ROP) profile for each of the plurality of analog wells;generating, using a machine-learning algorithm and based on the training data set, a drilling model that predicts the ROP profile of the target well; andperforming, based on the drilling model, modeling of the drilling operation to generate a predicted ROP profile of the target well.2. The method of claim 1 , wherein each of the plurality of analog well data sets comprises a collection of well data claim 1 , a drilling parameter claim 1 , a bit parameter claim 1 , a well log claim 1 , a drilling fluid ...

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18-02-2021 дата публикации

LEARNING BASED BAYESIAN OPTIMIZATION FOR OPTIMIZING CONTROLLABLE DRILLING PARAMETERS

Номер: US20210047910A1
Принадлежит:

A method for optimizing real time drilling with learning uses a multi-layer Deep Neural Network (DNN) built from input drilling data. A plurality of drilling parameter features is extracted using the DNN. A linear regression model is built based on the extracted plurality of drilling parameter features. The linear regression model is applied to predict one or more drilling parameters. 1. A method for optimizing drilling of a well , the method comprising steps of:building a multi-layer Deep Neural Network (DNN) from real time input drilling data from the well;extracting a plurality of drilling parameter features from the real time input drilling data using the DNN;building a linear regression model based on the extracted plurality of drilling parameter features;applying the linear regression model to the real time input drilling data to predict one or more drilling parameters for the well; anddrilling the well using the one or more drilling parameters.2. The method of claim 1 , wherein the step of applying the linear regression model further comprises applying a constrained data range to the real time input drilling data to predict the one or more drilling parameters.3. The method of claim 1 , wherein the DNN comprises a Convolution Neural Network (CNN).4. The method of claim 1 , wherein the linear regression model comprises a linear Support Vector Machine (SVM) model.5. The method of claim 4 , wherein the SVM model comprises a SVM model with a Radial Basis Function (RBF) kernel.6. The method of claim 1 , further comprising determining an expected improvement value based on the linear regression model claim 1 , wherein the expected improvement value corresponds to a predicted value of the one or more drilling parameters.7. The method of claim 1 , wherein the one or more drilling parameters comprise one or more of: a Weight On Bit (WOB) claim 1 , a bit Revolutions Per Minute (RPM) claim 1 , flow rate (Q) and Rate of Penetration (ROP).8. The method of claim 6 , further ...

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18-02-2016 дата публикации

METHOD FOR SLENDER TUBE, MULTI-LEVEL, SUBSURFACE BOREHOLE SAMPLING SYSTEM

Номер: US20160047225A1
Автор: Keller Carl E.
Принадлежит:

Methods and systems for allowing the use of very small-diameter sample tubing, with a flexible borehole liner, in multi-level water sampling systems deployed in subsurface boreholes. Methods are disclosed for determining depth distances to a ground water table, in a borehole, without the need to lower a pressure transducer into a sampling tube. 1. A method for determining groundwater condition in a borehole beneath the earth's surface , comprising:defining a sleeve on a flexible liner;disposing in the sleeve at least a portion of a slender tube thereby to hold upon the liner at least the portion of the slender tube, the slender tube having a tube first end and a tube second end;defining a port in the liner;placing the slender tube in fluid communication with the port;everting the flexible liner into a borehole below the surface;situating the tube first end and the tube second end above a ground water table in the borehole;allowing ground water to flow from the port through the check valve into the slender tube;permitting the ground water to rise in the slender tube to a first level corresponding to the ground water table;closing the tube first end;changing a condition of a gas within the slender tube between the tube first end and the ground water in the slender tube to affect a change of a ground water level in the slender tube from the first water level to a second water level; anddetermining, from the condition of the gas or from the change of the ground water level in the slender tube, the depth of the ground water table.2. The method of claim 1 , wherein placing the slender tube in fluid communication with the port comprises:locating a check valve adjacent to and in fluid communication with the port; andplacing the slender tube in fluid communication with the check valve.3. The method of claim 1 , wherein situating the tube first end and the tube second end above a ground water table in the borehole further comprises situating the tube first end and the tube ...

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15-02-2018 дата публикации

Drilling Operation Apparatus, Methods, and Systems

Номер: US20180045030A1
Принадлежит: Halliburton Energy Services, Inc.

In some embodiments, an apparatus and a system, as well as a method and article, may operate to generate a surface representing mechanical specific energy as a function of dimensionless products of downhole drilling process variables. Additional actions may include characterizing an area of the surface for different drill bit types, and operating a controlled device according to a location of run data associated with at least one of the different drill bit types and the area on the surface. Additional apparatus, systems, and methods are disclosed. 1. A method , comprising:generating a surface with a processing unit, the surface representing mechanical specific energy as a function of dimensionless products of downhole drilling process variables;characterizing, by the processing unit, an area of the surface for different drill bit types; andoperating a controlled device, communicatively coupled to the processing unit, according to a location of run data associated with at least one of the different drill bit types and the area on the surface.2. The method according to claim 1 , further comprising:obtaining data during drilling operations in a geological formation to define values of the drilling process variables.3. The method according to claim 2 , wherein operating the controlled device for controlling the drilling operations comprises:operating a geosteering device to select a drilling direction in the geological formation, based on the location of the run data on the surface.4. The method according to claim 1 , wherein the drilling process variables include torque claim 1 , rate of penetration claim 1 , rate of revolution claim 1 , borehole diameter claim 1 , and weight on bit.5. The method according to claim 4 , wherein one of the dimensionless products comprises a function of the torque claim 4 , the borehole diameter claim 4 , and the weight on bit.6. The method according to claim 4 , wherein one of the dimensionless products comprises a function of the rate ...

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15-02-2018 дата публикации

VISUALIZATION OF QUANTITATIVE DRILLING OPERATIONS DATA RELATED TO A STUCK PIPE EVENT

Номер: US20180047191A1
Автор: PRIYADARSHY Satyam
Принадлежит: Landmark Graphics Corporation

Systems and methods for visualization of quantitative drilling operations data related to a stuck pipe event using scaled data values for each attribute of interest, a scaled predetermined threshold value for each attribute of interest and an average value of the scaled data values for each attribute of interest. 1. A method for visualization of quantitative drilling operations data related to a stuck pipe event , which comprises:a) identifying at least one attribute of interest for data values from each respective data source;b) scaling only each data value for each attribute of interest;c) scaling a predefined threshold value for each attribute of interest; andd) plotting each scaled data value for each attribute of interest and each scaled predetermined threshold value for each attribute of interest on a graph using a computer processor.2. The method of claim 1 , further comprising plotting an average scaled data value for each attribute of interest on the graph based on each scaled data value for each respective attribute of interest.3. The method of claim 1 , wherein each data value is one of a real-time data value and a simulated data value.4. The method of claim 3 , further comprising repeating steps a)-d) until there are no more real-time data values from each respective data source claim 3 , no more simulated data values from each respective data source and no more data sources.5. The method of claim 2 , further comprising displaying a warning message for each average scaled data value that is improperly above or below the scaled predetermined threshold value for each respective attribute of interest claim 2 ,6. The method of claim 5 , further comprising:displaying the graph; andadjusting drilling operations based on each warning message displayed.7. The method of claim 1 , further comprising predicting a stuck pipe event by adjusting the average scaled data value for at least one attribute of interest.8. The method of claim 1 , wherein at least one data ...

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26-02-2015 дата публикации

DRILLING CONTROL AND INFORMATION SYSTEM

Номер: US20150053483A1
Автор: III Robert Eugene, Mebane
Принадлежит:

A drilling control and information system comprising: a rig site network () including a drilling equipment controller () and a drilling parameter sensor (); a downhole sensor () communicatively coupled to the rig site network; a data center () communicatively coupled to the rig site network; a remote access site () communicatively coupled to the data center; and a pressure management application () communicatively coupled to the rig site network, wherein the pressure management application receives pressure data from the drilling parameter sensor and the downhole sensor and issues an operating instruction to the drilling equipment controller. 120.-. (canceled)21. A drilling control and information system comprising:a rig site network including a drilling equipment controller and a sensor;a downhole sensor communicatively coupled to the rig site network;an application communicatively coupled to the rig site network, wherein the application receives data from the rig site network and issues an operating instruction to the drilling equipment controller; anda remote access site communicatively coupled to the rig site network, wherein the remote access site receives data from the rig site network and issues a control input to either the application or to the drilling equipment controller.22. The system of claim 21 , wherein the data received from the rig site network is generated by the drilling equipment controller or the sensor.23. The system of claim 21 , wherein the sensor is a downhole sensor.24. The system of claim 21 , wherein the application is a drilling application operable to determine a position of a drill string.25. The system of claim 24 , wherein the control input is based on a comparison of the position of the drill string to a well plan.26. The system of claim 21 , wherein the application is a wellbore visualization application operable to generate a wellbore simulation based on the data.27. The system of claim 26 , wherein the control input is based on ...

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14-02-2019 дата публикации

Apparatus and methods for automated slide drilling

Номер: US20190048706A1
Принадлежит: Motive Drilling Technologies Inc

An automated slide drilling system (ASDS) may be used with a drilling rig system to control slide drilling. The ASDS may autonomously control slide drilling without user input during the slide drilling. The ASDS may further support a transition from rotary drilling to slide drilling to rotary drilling without user input during the transitions. The ASDS may also support user input and user notifications for various steps to enable manual or semi-manual control of slide drilling by a driller or an operator.

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25-02-2016 дата публикации

SYSTEM AND CONSOLE FOR MONITORING AND MANAGING WELL SITE OPERATIONS

Номер: US20160053603A1
Принадлежит:

A well advisor system and console for monitoring and managing well drilling and production operations. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to rate of penetration concerning a well being drilled, and present the information for related parameters in real time against a plotted “fairway” of determined maximum and minimum values, with a focus on the safety of the drilling operation. 1. A system for computer-based processing and monitoring of rate of penetration data in well drilling operations , comprising:a plurality of sensors to sample or detect parameters related to the rate of penetration of drilling operations in a well, said plurality of sensors comprising surface sensors or downhole sensors or a combination thereof;one or more computing devices adapted to receive parameter information in real time from said plurality of sensors, said one or more computing devices each further comprising a processor or microprocessor, said processor or microprocessor adapted to process the received parameter information to calculate derived parameters related to the rate of penetration;at least one computer-readable storage medium for storing some or all of said received parameter information and said derived parameters; anda visual display, coupled to said one or more computing devices, for displaying in real time some or all of the received parameter information and said derived parameters.2. The system of claim 1 , wherein the visual display of some or all of the ...

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25-02-2016 дата публикации

System and console for monitoring and managing well site drilling operations

Номер: US20160053604A1
Принадлежит: Kongsberg Oil and Gas Technologies AS

A well advisor system and console for monitoring and managing drilling operations at a well site. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to drilling operations at a well site, including, but not limited to, hole cleaning status and wellbore stability.

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25-02-2016 дата публикации

DRILLING A WELLBORE

Номер: US20160054729A1
Принадлежит:

Methods and systems for controlling a drilling operation based on an MSE value calculated for a depth increment are disclosed herein. In an exemplary method, drilling parameters characterizing a drilling operation in a subterranean formation are received in a control system. The drilling parameters are used by the control system to calculate a depth-based mechanical specific energy (MSE) based on some amount of energy expended by at least a portion of a drilling assembly while drilling at least one identified depth sub-interval of a depth interval of a subterranean formation. The control system uses the calculated depth-based MSE to control the drilling operation. 1. A method of drilling a wellbore , comprising:receiving drilling parameters characterizing a drilling operation in a subterranean formation in a control system;using the received drilling parameters and an energy-conserving method to calculate a depth-based mechanical specific energy (MSE) based on some amount of energy expended by at least a portion of a drilling assembly while drilling at least one identified depth sub-interval of a depth interval of a subterranean formation;controlling the drilling operation from the control system based, at least in part, on the calculated depth-based MSE; anddrilling the wellbore during the drilling operation.2. The method of claim 1 , comprising identifying the depth sub-interval in terms of an at least one measured bit depth and an at least one prescribed depth increment.3. The method of claim 2 , comprising:calculating a plurality of depth-based MSE values at a measured bit depth during the drilling operation, each using a different depth interval;repeating the calculation at additional measured bit depths; andprescribing the depth increment for at least one bit depth from the plurality of calculated depth-based MSE values.4. The method of claim 2 , comprising calculating the depth-based MSE over at least one prescribed depth increment based on the received ...

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22-02-2018 дата публикации

A METHOD OF PERFORMING A REAMING OPERATION AT A WELLSITE USING REAMER PERFORMANCE METRICS

Номер: US20180051548A1
Автор: Liu Yu, WU Xianping
Принадлежит:

Methods of performing a reaming operation at a wellsite are disclosed. The method involves measuring surface drilling parameters (e.g., surface torque and surface weight on bit) from surface sensors positioned about a rig, measuring downhole drilling parameters (e.g., downhole weight on bit and downhole torque) from downhole sensors positioned about a downhole tool, generating weight on reamer from the measured surface weight on bit and the measured downhole weight on bit, generating frictional torque by detecting from the surface sensors when the drilling tool is in a rotating off bottom state and selecting a portion of the measured surface torque measured during the rotating off bottom state, generating torque on reamer from the frictional torque, the downhole torque parameters, and the surface torque parameters, and detecting reamer performance by monitoring changes in reamer performance metrics (e.g., reamer aggressiveness) including integrated torque on reamer with weight on reamer. 1. A method of performing a reaming operation at a wellsite , the wellsite having a rig with a drilling tool deployed from the rig and advanced into a subterranean formation to form a wellbore , an underreamer carried by the drilling tool to expand the wellbore , the method comprising:measuring surface drilling parameters comprising surface torque and surface weight on bit from surface sensors positioned about the rig;measuring downhole drilling parameters comprising downhole weight on bit and downhole torque from downhole sensors positioned about the drilling tool;generating weight on reamer from the measured surface weight on bit and the measured downhole weight on bit;generating frictional torque by detecting from the surface sensors when the drilling tool is in a rotating off bottom state and selecting a portion of the measured surface torque measured during the rotating off bottom state;generating torque on reamer from the frictional torque, the downhole torque, and the surface ...

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23-02-2017 дата публикации

CROSS-PLOT ENGINEERING SYSTEM AND METHOD

Номер: US20170051601A1
Принадлежит: Petrolink International

In one embodiment, a method includes facilitating a real-time cross-plot display of drilling-performance data for a current well. The real-time cross-plot display includes a plurality of data plots represented on a common graph such that each data plot specifying at least two drilling parameters. Each data plot includes a plurality of data points such that each data point is expressable as Cartesian coordinates in terms of the at least two drilling parameters. The method further includes receiving new channel data for the current well from a wellsite computer system. In addition, the method includes creating, from the new channel data, new data points for the plurality of data plots as the new channel data is received. Moreover, the method includes updating the plurality of data plots with the new data points as the new data points are created. 1. A method comprising:on a central computing system comprising at least one server computer, facilitating a real-time cross-plot display of drilling-performance data for a current well;wherein the real-time cross-plot display comprises a plurality of data plots represented on a common graph, each data plot specifying at least two drilling parameters;wherein each data plot comprises a plurality of data points, each data point expressable as Cartesian coordinates in terms of the at least two drilling parameters;the central computing system receiving new channel data for the current well from a wellsite computer system;the central computing system creating, from the new channel data, new data points for the plurality of data plots as the new channel data is received; andthe central computing system updating the plurality of data plots with the new data points as the new data points are created.2. The method of claim 1 , wherein claim 1 , for each of the plurality of data plots claim 1 , the central computing system maps the at least two drilling parameters to data sources for the current well.3. The method of claim 1 , ...

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05-03-2015 дата публикации

Eccentric Steering Device and Methods of Directional Drilling

Номер: US20150060140A1
Автор: DOWNTON GEOFF
Принадлежит:

The present invention recites a method, system and apparatus for steering a drill string, wherein an eccentric steering device is recited. The eccentric steering device may comprise an eccentric sleeve configured for mounting exterior to a portion of the drill string and permitting the drill string to rotate within the eccentric sleeve and a brake positioned to selectively cause rotation of the eccentric sleeve with the drill string. In one embodiment, the eccentric steering device may further comprise one or more bearings positioned between the eccentric sleeve and the drill string. 1. An eccentric steering device for steering a drill string , the eccentric steering device comprising:an eccentric sleeve configured for mounting exterior to a portion of the drill string and permitting the drill string to rotate within the eccentric sleeve; anda brake positioned to selectively cause rotation of the eccentric sleeve with the drill string.2. (canceled)3. (canceled)4. (canceled)5. The eccentric steering device of claim 7 , wherein the brake is mounted on the drill string.6. The eccentric steering device of claim 7 , wherein the brake is mounted on the eccentric sleeve.7. The eccentric steering device of claim 1 , wherein the eccentric sleeve includes one or more ribs for engaging with a borehole wall.8. The eccentric steering device of claim 7 , wherein the one or more ribs are configured for extension when the brake is not actuated.9. The eccentric steering device of claim 7 , further comprising: an actuator configured to control the brake.10. The eccentric steering device of claim 9 , wherein the actuator is a valve.11. The eccentric steering device of claim 10 , wherein the valve control flow of drilling fluid to the brake.12. The eccentric steering device of claim 9 , further comprising: a control device configured to control the actuator.13. The eccentric steering device of claim 9 , wherein the control device includes one or more sensors selected from the group ...

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02-03-2017 дата публикации

System and method for surface steerable drilling using tactical tracking

Номер: US20170058656A1
Принадлежит: Motive Drilling Technologies Inc

An apparatus associated with a drilling rig includes a surface steerable system for controlling drilling direction of a bottom hole assembly (BHA). The surface steerable system is configured to receive drilling rig parameters from the BHA. A database stores historical data related to the drilling rig. The historical data relates to previously tracked operations of the drilling rig. The surface steerable system is further configured to perform a plurality of tracking functions with respect to the drilling rig parameters. The plurality of tracking functions cause the surface steerable system to track drilling rig parameters from sensors associated with the drilling rig, access the database of the historical data relating to previously tracked operations of the drilling rig and control operating functions of the drilling rig responsive to at least one of the drilling rig parameters from the sensors associated with the drilling rig and the historical data from the database.

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02-03-2017 дата публикации

Methods For Drilling A Wellbore Within A Subsurface Region And Drilling Assemblies That Include And/Or Utilize The Methods

Номер: US20170058657A1
Принадлежит:

Methods for drilling a wellbore within a subsurface region and drilling assemblies and systems that include and/or utilize the methods are disclosed herein. The methods include receiving a plurality of drilling performance indicator maps, normalizing the plurality of drilling performance indicator maps to generate a plurality of normalized maps, adaptive trending of the plurality of drilling performance indicator maps to generate a plurality of trended maps, summing the plurality of trended maps to generate an objective map, selecting a desired operating regime from the objective map, and adjusting at least one drilling operational parameter of a drilling rig based, at least in part, on the desired operating regime. 1. A method of drilling a wellbore , with a drill string of a drilling rig , within a subsurface region , the method comprising:receiving a plurality of drilling performance indicator maps, wherein each of the plurality of drilling performance indicator maps includes information regarding a corresponding mathematically derived drilling performance indicator of a drilling operation of the drilling rig, and further wherein each of the plurality of drilling performance indicator maps describes the corresponding mathematically derived drilling performance indicator as a function of a plurality of independent drilling operational parameters of the drilling rig;normalizing the plurality of drilling performance indicator maps with corresponding non-constant normalizing functions to generate a plurality of normalized maps, wherein the plurality of normalized maps is defined within a coextensive normalized map range;adaptively trending the plurality of normalized maps with corresponding trending parameters to generate a plurality of trended maps, wherein the adaptively trending of a given normalized map of the plurality of normalized maps is based, at least in part, upon at least one statistical parameter derived from the corresponding mathematically derived ...

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02-03-2017 дата публикации

METHODS OF CONTROLLING DRILL BIT TRAJECTORY BY PREDICTING BIT WALK AND WELLBORE SPIRALING

Номер: US20170058658A1
Принадлежит:

A method of controlling drill bit trajectory in a subterranean formation includes receiving drilling parameters for operating a specific bottomhole assembly (BHA), constructing, with a computer processor, a directional drill-ahead simulator including a computer model of the BHA and the subterranean formation, calculating axial motion and lateral motion of a drill bit connected to a bottom end of the BHA using formation parameters and drilling parameters, predicting bit walk of the drill bit by accounting for and calculating contact forces and frictional forces between the BHA and a wall of a borehole in the subterranean formation using the computer model of the BHA, and determining an adjusted drill bit trajectory to account for the predicted bit walk. The method includes determining adjusted drilling parameters for operating the BHA to substantially follow the adjusted drill bit trajectory and operating the BHA according to the adjusted drilling parameters. 1. A method of controlling drill bit trajectory in a subterranean formation , the method comprising:receiving drilling parameters for operating a specific bottomhole assembly (BHA);constructing, with a computer processor, a directional drill-ahead simulator comprising a computer model of the BHA and the subterranean formation;calculating, with the computer processor, axial motion and lateral motion of a drill bit connected to a bottom end of the BHA using at least one formation parameter and at least one drilling parameter;predicting, with the computer processor, bit walk of the drill bit by accounting for and calculating contact forces and frictional forces between the BHA and a wall of a borehole in the subterranean formation using the computer model of the BHA;determining, with the computer processor, an adjusted drill bit trajectory to account for the predicted bit walk;determining adjusted drilling parameters for operating the BHA to substantially follow the adjusted drill bit trajectory; andoperating the ...

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04-03-2021 дата публикации

CONTROLLING RANGE CONSTRAINTS FOR REAL-TIME DRILLING

Номер: US20210062634A1
Принадлежит:

A system and method for controlling a drilling tool inside a wellbore makes use of Bayesian optimization with range constraints. A computing device samples observed values for controllable drilling parameters such as weight-on-bit (WOB) and drill bit rotational speed in RPM and evaluates a selected drilling parameter such a rate-of-penetration (ROP) for the observed values using an objective function. Range constraints can be continuously learned by the computing device as the range constraints change. A Bayesian optimization, subject to the range constraints and the observed values, can produce an optimized value for the controllable drilling parameter to achieve a predicted value for the selected drilling parameter. The system can then control the drilling tool using the optimized value to achieve the predicted value for the selected drilling parameter. 1. A system comprising:a drilling tool; and sampling observed values for at least one controllable drilling parameter;', 'determining range constraints based on physical properties of a drilling environment;', 'executing a Bayesian optimization subject to the range constraints and the observed values to produce an optimized value for the at least one controllable drilling parameter to achieve a predicted value for the selected drilling parameter; and', 'controlling the drilling tool using the optimized value for the at least one controllable drilling parameter to achieve the predicted value for the selected drilling parameter., 'a computing device in communication with the drilling tool, the computing device including a non-transitory memory device comprising instructions that are executable by the computing device to cause the computing device to perform operations comprising2. The system of wherein the operations further comprise:teaching a deep-learning neural network using the observed values; andrunning the Bayesian optimization using the deep-learning neural network.3. The system of wherein the operations ...

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20-02-2020 дата публикации

PREDICTIVE LITHOLOGY AND FORMATION TYPE FOR DOWNHOLE DRILLING

Номер: US20200056478A1
Принадлежит:

A system includes a drill string having a drill bit to drill a target wellbore, a processor, and a machine-readable medium. The machine-readable medium having program code executable by the processor to cause the processor to determine a mechanical specific energy (MSE) response during drilling of the target wellbore and determine a property of a formation around the target wellbore based on the MSE response. 1. A system comprising:a drill string having a drill bit to drill a target wellbore;a processor; and determine a mechanical specific energy (MSE) response during drilling of the target wellbore; and', 'determine a property of a formation around the target wellbore based on the MSE response., 'a machine-readable medium having program code executable by the processor to cause the processor to,'}2. The system of claim 1 , wherein the program code comprises program code executable by the processor to claim 1 ,determine a weight on bit (WOB) exerted by the drill bit during drilling of the target wellbore;determine a rotation speed of the drill bit during the drilling;determine a rotational torque of the drill string during the drilling;determine a rate of penetration of the drill bit during the drilling; anddetermine a diameter of the drill bit,wherein the program code executable by the processor to cause the processor to determine the MSE response comprises program code executable by the processor to cause the processor to determine the MSE response based on the WOB, the rotation speed, the rotation speed; the rate of penetration, and the diameter of the drill bit.3. The system of claim 1 , the property of the formation comprises a type of the formation.4. The system of claim 1 , wherein the property of the formation comprises a lithology of the formation.5. The system of claim 1 , wherein the program code comprises program code executable by the processor to cause the processor claim 1 ,alter the drilling of the target wellbore based on the property of the ...

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22-05-2014 дата публикации

GRAPH TO ANALYZE DRILLING PARAMETERS

Номер: US20140138158A1
Принадлежит: BAKER HUGHES INCORPORATED

A method for presenting drilling information includes presenting a display including a graph having a first axis and a second axis. The first axis represents a rate of penetration (ROP) of a drill bit into a borehole and the second axis representing a mechanical specific energy (MSE) of a drilling system that includes the drill bit. The method also includes plotting time based or foot based data with a computing device for one or more drilling runs on the graph and overlaying the graph with lines of constant power. 1. A method of adjusting drilling parameters affecting drilling in a borehole , the method comprising:obtaining data as a function of time or depth, the data including rate of penetration (ROP) of a drill bit into the borehole and corresponding mechanical specific energy (MSE) of a drilling system or the drill bit; andadjusting at least one of the drilling parameters of the drilling system or the drill bit based on the data.2. The method according to claim 1 , further comprising generating a plot of the ROP on a first axis claim 1 , the MSE on a second axis claim 1 , and the time or the depth on a third axis.3. The method according to claim 2 , wherein the adjusting the at least one of the drilling parameters is done manually by an operator viewing the plot.4. The method according to claim 3 , wherein the adjusting includes using the MSE as a proxy for efficiency and adjusting the at least one of the drilling parameters to reduce the MSE.5. The method according to claim 4 , wherein the adjusting the at least one of the drilling parameters includes adjusting weight-on-bit (WOB) or rotational speed of the drill bit.6. The method according to claim 4 , wherein the adjusting the at least one of the drilling parameters includes adjusting flow of mud from a mud pump.7. The method according to claim 4 , wherein the adjusting the at least one of the drilling parameters includes adjusting active vibration control.8. The method according to claim 4 , further ...

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08-03-2018 дата публикации

Optimization of Drilling Assembly Rate of Penetration

Номер: US20180066508A1
Принадлежит: MI LLC

In drilling into a subterranean formation, several factors influence the rate of penetration, including, but not limited to, the type of formation being drilled, the weight on bit, and the rotational speed of the drill bit. Disclosed are a system and method for controlling the rotational speed of a drill bit based on regulation of fluid flow to the motor driving the bit, while maintaining at least a minimum flow of fluid to the annulus to clear debris from downhole during drilling. Regulation of fluid flow to the motor and to the annulus may be accomplished utilizing a flow diverter configured to adjust a flow ratio depending on drilling conditions in order to maximize efficiency of the motor downhole during drilling.

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17-03-2016 дата публикации

METHODS FOR SELECTING AND OPTIMIZING DRILLING SYSTEMS

Номер: US20160076357A1
Автор: HBAIEB SLIM
Принадлежит:

A method for selecting a drill bit, the method includes obtaining a plurality of data of a first well within an earth formation, correlating the plurality of data of the first well to identify a set of reduced variables of the plurality of data, segmenting the reduced set of the plurality of data into a plurality of facies based on one of drillability and steerability, performing analysis of drilling performance of each of the plurality of facies, and selecting a drill bit based on the drilling performance. 1. A method for selecting a drill bit , the method comprising:obtaining a plurality of data of a first well within an earth formation;correlating the plurality of data of the first well to identify a set of reduced variables of the plurality of data;segmenting the reduced set of the plurality of data into a plurality of facies based on one of drillability and steerability;performing analysis of drilling performance of each of the plurality of facies; andselecting a drill bit based on the drilling performance.2. The method of claim 1 , wherein the reduced set of variables is identified using a cluster analysis technique.3. The method of claim 1 , further comprising:correlating the plurality of facies with one or more additional wells within the earth formation;performing analysis of drilling performance of each of the plurality of facies based on the one or more additional wells; andselecting a drill bit based on the results of the performed analysis.4. The method of claim 1 , further comprising:refining the set of reduced variables based on the performed analysis;performing refined analysis of drilling performance of the refined set of reduced variables of each of the plurality of facies; andselecting a drill bit based on the refined analysis.5. The method of claim 1 , further comprising:refining the set of reduced variables based on the performed analysis;performing refined analysis of drilling performance of the refined set of reduced variables of each of the ...

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05-03-2020 дата публикации

ROCK DRILLING DEVICE

Номер: US20200072035A1
Принадлежит:

A method of monitoring a rock drilling and a rock drilling device includes generating a stress wave, which propagates in a tool of the rock drilling device, measuring the stress wave propagating in the tool and measuring a drilling parameter indicating a drilling penetration rate. The method further includes identifying, from the measured stress wave propagating in the tool, at least one of a compressive stress wave and a tensile stress wave of a reflected stress wave reflected from a rock to be drilled back to the tool, determining at least one property of the at least one of the compressive stress wave and the tensile stress wave of the reflected stress wave, detecting, on the basis of a change in the at least one property of the at least one of the compressive stress wave and the tensile stress wave, that the tool is approaching the cavity. 1. A method of monitoring a rock drilling , the method comprising:generating, by an impact mechanism of a rock drilling device, a stress wave which propagates in a tool of the rock drilling device;measuring the stress wave propagating in the tool;measuring a drilling parameter indicating a drilling penetration rate;identifying, from the measured stress wave generated by the impact mechanism propagating in the tool, at least one of a compressive stress wave and a tensile stress wave of a reflected stress wave reflected from a rock to be drilled back to the tool;determining at least one property of the at least one of the compressive stress wave and the tensile stress wave of the reflected stress wave;detecting, on the basis of a change in the at least one property of the at least one of the compressive stress wave and the tensile stress wave, that the tool is approaching a cavity in the rock before the tool actually enters the cavity; andinitiating at least one cavity-related action in response to detecting the tool approaching the cavity.2. The method as claimed in claim 1 , comprising detecting claim 1 , on the basis of a ...

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05-06-2014 дата публикации

SYSTEMS AND METHODS FOR DETERMINING POSITION OF MARKER DEPTH COORDINATES FOR CONSTRUCTION OF GEOLOGICAL MODEL OF DEPOSIT

Номер: US20140156217A1
Принадлежит:

The invention relates to the method, device, and a machine-readable data carrier used for building a geological model of oil or other mineral deposit. In particular, the invention refers to the method, device, and machine-readable data carrier used for determining the position of marker depth coordinates in wells W from a reference group of wells at the building of a geological model. A technical result is the improved accuracy of the evaluation of parameters used in the building of a geological model describing the location of oil or other deposits. The invention makes it possible, for markers chosen as an initial solution, to calculate the marker depth in each well to maximize the total correlation. For each marker in the set, a functional is defined as the sum of correlation coefficients of a set of well-logging methods for pairs of wells located within a specified distance from one another. 1. A computer-implemented method for determining a position of coordinates of a marker depth in well W for building of a geological model of a deposit , the computer-implemented method comprising:1) determining wells W and wells located within a specified neighborhood of the well W, the radius of the neighborhood being R;{'sub': 'i', '2) determining the values of the mark of marker depth {z}, i=0, . . . , n in each well W and in wells located within a specified neighborhood of the well;'}{'sub': 'i', '3) evaluating the functional C in points where the value of marker depth {z} is known;'}{'sub': 'i', '4) composing gradient vectors in points where the value of marker depth {z} is known;'}5) smoothing the gradient vector by replacing each component of the gradient vector in the well W by the mean value of components of gradient vector in wells in the neighborhood with radius R;{'sub': i', 'i, '6) searching for a value of the functional C greater than the previously found value of the functional C within a segment of specified length starting from the marker depth mark {z} in ...

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12-03-2020 дата публикации

METHOD AND SYSTEM FOR OPERATING A DRILLING PLANT

Номер: US20200080412A1
Принадлежит: MHWIRTH AS

A method for analyzing a drilling operation includes obtaining a first set of logged operational data from the drilling operation through a first time interval, obtaining a set of operational activity dividers that delimit second time intervals within the first time interval, allocating one of a plurality of pre-defined activities to each of the second time intervals, wherein a first activity is one of the plurality of pre-defined activities, calculating a first performance indicator parameter for the second time intervals which have been allocated to the first activity, generating a time-dependent profile of the first performance indicator parameter for the second time intervals, and outputting at least one calculated value of the first performance indicator parameter to an operator. The first performance indicator parameter is calculated as a function of a duration of a respective second time interval which has been allocated to the first activity. 151-. (canceled)52. A method for analyzing a drilling operation , the method comprising:obtaining a first set of logged operational data from the drilling operation through a first time interval;obtaining a set of operational activity dividers that delimit a plurality of second time intervals within the first time interval;allocating one of a plurality of pre-defined activities to each of the plurality of second time intervals, wherein a first activity is one of the plurality of pre-defined activities;calculating a first performance indicator parameter for the plurality of second time intervals which have been allocated to the first activity, the first performance indicator parameter being calculated as a function of a duration of a respective one of the plurality of second time intervals which has been allocated to the first activity;generating a time-dependent profile of the first performance indicator parameter for the plurality of second time intervals; andoutputting at least one calculated value of the first ...

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02-04-2015 дата публикации

DRILLING SYSTEM

Номер: US20150090498A1
Автор: Hareland Geir
Принадлежит:

Rock strength is estimated during drilling using a rate of penetration model or a modified mechanical specific energy models. The rock strength estimate can be used in conducting further drilling, for example by a drilling system. Drilling parameters may be altered as a result of determining rock strength, for example to avoid undesirable trending fractures, such as extensive vertical fractures. 1. A method of drilling a well or fracturing a formation drilled by a well , the method comprising the steps of:drilling through rock with a drilling system by rotating a drill bit;providing a model for calculating the rock mechanical properties and/or specific energy using rate of penetration of the bit through the rock formations being drilled, the model including the strength of the rock and known or estimated parameters, the known or estimated parameters including a measure of bit wear, the model including a proportionality of the rate of penetration of the bit through the rock to a function of the measure of bit wear;measuring or estimating a value of the rate of penetration of the bit;estimating the strength of the rock according to a value of the strength of the rock required to cause the model to calculate the rate of penetration of the bit to have the measured or estimated value given the known or estimated parameters;estimating a rate of change of the measure of bit wear based on the estimated strength of the rock;repeating the above steps at at least a subsequent point in time estimating the measure of bit wear at the at least a subsequent point in time using the estimated rate of change of the measure of bit wear; andsetting drilling or fracturing parameters according to the estimated rock strength.2. The method of in which the known or estimated parameters include the weight on bit.3. The method of in which the known or estimated parameters include a rotational speed of the bit.4. The method of in which the known or estimated parameters include a wedge angle of ...

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26-06-2014 дата публикации

METHOD AND SYSTEM FOR CONTROLLING TONGS MAKE-UP SPEED AND EVALUATING AND CONTROLLING TORQUE AT THE TONGS

Номер: US20140174731A1
Принадлежит:

Make-up speed for a tongs drive system is monitored and controlled to maintain the speed within a limited target range either throughout the make-up process or during the final portion of the make-up process, thereby improving make-up consistency and allowing for improved evaluation or torque during the make-up process. An encoder generates speed and position data during the make-up process. The speed data is compared to a target speed, which is based on rod and/or tongs characteristics. If the speed does not match the target speed or is not within a range of the target speed, a signal is transmitted to the tongs drive to adjust the speed accordingly. Furthermore, position data from the encoder, or other position sensors, provide position data for the rod during the make-up process to limit or vary the speed control parameters during different portions of the make-up process. 1. A method for controlling the speed of a set of tongs during a make-up comprising the steps of:accepting at a processor a target speed for rod make-up;conducting the make-up of a rod with the tongs;receiving an actual tong speed at the processor from a speed sensing device during the make-up process;determining at the processor if the actual tong speed is within a predetermined range of the target speed during the make-up process; andautomatically adjusting the actual tong speed to be within the predetermined range of the target speed based on a determination by the processor that the actual tong speed data is not within a predetermined range of the target speed.2. The method of claim 1 , further comprising the steps of:receiving at an input device at least one rod characteristic associated with the rod used in the make-up process;transmitting the rod characteristic to the processor; anddetermining with the processor the target speed for the rod make-up based at least in part on the rod characteristic.3. The method of claim 2 , wherein the rod characteristic is selected from a group ...

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16-04-2015 дата публикации

Analysis of Drillstring Dynamics Using Angular and Linear Motion Data from Multiple Accelerometer Pairs

Номер: US20150101865A1
Принадлежит:

Downhole drilling vibration analysis uses angular and linear motion data on a drilling assembly. During drilling operations, pairs of accelerometers measure the angular and linear motion of the drilling assembly. Processing circuitry is operatively coupled to the accelerometer pairs and is configured to determine type and severity of vibrations occurring during drilling based on the angular and linear motion data. Drilling operations can then be modified to overcome or mitigate the detrimental vibrations. 1. A downhole drilling vibration analysis method , comprising:drilling with a drilling assembly;measuring acceleration with at least two accelerometer pairs oriented at a first orientation relative to one another on the drilling assembly, each of the at least two accelerometer pairs having at least two accelerometers oriented at a second orientation relative to one another;determining motion of the drilling assembly with the measured acceleration while drilling downhole;analyzing the determined motion; anddetermining that detrimental vibration is occurring during drilling based on the analysis.2. The method of claim 1 , wherein the determined motion comprises one or more of angular motion and linear motion of the drilling assembly.3. The method of claim 1 , wherein the determined motion comprises one or more of displacement claim 1 , velocity claim 1 , and acceleration of the drilling assembly.4. The method of claim 1 , wherein determining the motion of the drilling assembly further comprises measuring an angular rate with a gyroscope.5. The method of claim 1 , wherein measuring the acceleration with the at least two accelerometer pairs oriented at the first orientation relative to one another and the at least two accelerometers oriented at the second orientation relative to one another comprises measuring the acceleration in orthogonal X and Y directions both radially and tangentially relative to the drilling assembly.6. The method of claim 1 , wherein the first ...

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23-04-2015 дата публикации

Rotational Downlinking to Rotary Steerable System

Номер: US20150107903A1
Автор: Sugiura Junichi
Принадлежит:

A downhole steering tool comprising a first member, fixedly coupled with a drill string, and a second member, proximate the first member and rotatable substantially freely with respect to the first member. A first sensor is operable to measure a difference in rotation rates of the first and second members. A second sensor is operable to measure a substantially real-time rotation rate of the second member in the wellbore. A tool controller is operable to process sensor signals from the first and second sensors to determine a rotation rate of the drill string. Surface-initiated changes in the rotation rate of the drill string are then utilized by the downhole steering tool for steering and other control. 1. An apparatus , comprising: a first member fixedly coupled with the drill string;', 'a second member disposed proximate the first member and rotatable substantially freely with respect to the first member;', 'a first sensor operable to measure a difference in rotation rates of the first and second members;', 'a second sensor operable to measure a substantially real-time rotation rate of the second member in the wellbore; and', 'a tool controller operable to process sensor signals from the first and second sensors to determine a rotation rate of the drill string., 'a downhole steering tool conveyed in a wellbore via a drill string, wherein the downhole steering tool comprises2. The apparatus of wherein the first member is a collar and second member is a roll-stabilized sensor housing disposed within the collar.3. The apparatus of wherein the roll-stabilized sensor housing is a slowly-rotating sensor housing.4. The apparatus of wherein the roll-stabilized sensor housing is a non-rotating sensor housing.5. The apparatus of wherein the first member is or comprises a shaft and the second member is or comprises a roll-stabilized sensor housing disposed about the shaft.6. The apparatus of wherein the roll-stabilized sensor housing is a slowly-rotating sensor housing or a ...

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08-04-2021 дата публикации

WELL LOG CORRELATION AND PROPAGATION SYSTEM

Номер: US20210102457A1
Принадлежит:

A system can include a processor; memory operatively coupled to the processor; and processor-executable instructions stored in the memory to instruct the system to: receive a marker on a well log for a well in a geographic region; and iteratively propagate the marker automatically to a plurality of well logs for other wells in the geographic region. 14210. A method () comprising:{'b': '4214', 'receiving a marker on a well log for a well in a geographic region (); and'}{'b': '4218', 'iteratively propagating the marker automatically to a plurality of well logs for other wells in the geographic region ().'}2. The method of wherein the marker comprises a formation top marker.3. The method of wherein the propagating comprises computing a warp distance.4. The method of comprising computing a confidence score based at least in part on the warp distance.5. The method of wherein the propagating comprises implementing a fast dynamic time warping (FastDTW) computational algorithm using one or more processors to compute the warp distance.6. The method of wherein the warp distance is a measure of a difference between data of two of the well logs.7. The method of wherein the propagating comprises adjusting an adjustable depth search range claim 1 , wherein the adjusting comprises determining an upper depth search range limit and a lower depth search range limit using a depth of a propagated marker that is based on the received marker.8. The method of wherein the well logs comprise data with respect to a vertical depth.9. The method of comprising computing confidence scores for individual correlations between pairs of the well logs.10. The method of comprising identifying a lowest confidence score as associated with one of the other wells and issuing a notification that identifies the one of the other wells.11. The method of wherein the propagating comprises generating a minimum spanning tree (MST) claim 1 , wherein the received marker is a seed of the MST.12. The method of ...

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04-04-2019 дата публикации

DOWNHOLE SYSTEM FOR DETERMINING A RATE OF PENETRATION OF A DOWNHOLE TOOL AND RELATED METHODS

Номер: US20190100986A1
Принадлежит:

A method of determining a rate of penetration of a downhole tool. The method comprises introducing a downhole tool including a drill bit configured to drill through a subterranean formation in a wellbore, the downhole tool comprising at least one reader configured to communicate with identification tags using electromagnetic radiation. The method includes advancing the wellbore with the drill bit and placing, with a component of a bottomhole assembly of the downhole tool, a first identification tag at a first location proximate the wellbore and at least a second identification tag at a second location proximate the wellbore and separated from the first location by a distance. An interrogation signal is transmitting from the at least one reader toward a wall of the wellbore and response signals from the identification tags are received by the at least one reader to determine proximity of the identification tags to the reader. A rate of penetration of the downhole tool is determined, using a processor and associated memory, based at least in part on a distance between identification tags and an amount of time between receiving response signals from a first identification tag and at least a second identification tag. Downhole systems for determining a rate of penetration and other methods are also disclosed. 1. A method of determining rate of penetration of a downhole tool , the method comprising:introducing a downhole tool in a wellbore, the downhole tool comprising at least one reader configured to communicate with identification tags using electromagnetic radiation;advancing the downhole tool in the wellbore;placing, with a component of a bottomhole assembly of the downhole tool, a first identification tag at a first location proximate the wellbore and at least a second identification tag at a second location proximate the wellbore separated from the first location by a distance;transmitting an interrogation signal comprising electromagnetic radiation from the at ...

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04-04-2019 дата публикации

DOWNHOLE ACOUSTIC SYSTEM FOR DETERMINING A RATE OF PENETRATION OF A DRILL STRING AND RELATED METHODS

Номер: US20190100992A1
Принадлежит:

A method of determining a rate of penetration of a drill bit using acoustic technology. The method comprises providing a drill string including a drill bit configured to drill through a subterranean formation in a wellbore and operably coupling an array of acoustic transducers to a member of the drill string. Acoustic waves are emitted toward a wall of the wellbore with at least one acoustic transducer and a frequency of the acoustic waves reflected from the wall of the wellbore are measured with at least one acoustic transducer. The array of acoustic transducers is operably coupled to a controller comprising a memory and a processor to determine a frequency shift between the emitted acoustic waves and the reflected acoustic waves. A rate of penetration of the drill bit is determined with the processor based at least in part on the frequency shift. Downhole acoustic systems for determining a rate of penetration of a drill string are also disclosed. 1. A method of determining a rate of penetration of a drill bit , the method comprising:providing a drill string including a drill bit configured to drill through a subterranean formation in a wellbore;operably coupling an array of acoustic transducers to a member of the drill string;coupling the array of acoustic transducers to a controller comprising a memory and a processor;emitting acoustic waves toward a wall of the wellbore with at least one acoustic transducer of the array of acoustic transducers;measuring a frequency of acoustic waves reflected from the wall of the wellbore with at least one acoustic transducer of the array of acoustic transducers;determining, with the processor, a frequency shift between the emitted acoustic waves and the reflected acoustic waves; anddetermining a rate of penetration of the drill bit with the processor based at least in part on the frequency shift.2. The method of claim 1 , wherein emitting acoustic waves toward a wall of the wellbore with at least one acoustic transducer and ...

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02-06-2022 дата публикации

SYSTEMS AND METHODS FOR CONTROLLING A DRILLING PATH BASED ON DRIFT ESTIMATES

Номер: US20220170324A1
Принадлежит:

In a drilling system, a control system coupled to a drilling rig controls a bottom hole assembly (BHA) to drill a borehole through a geological formation along a drilling path. The control system determines a present position of the BHA and calculates a toolface vector to create a convergence path from the present position of the BHA to a desired target path. The control system also receives geological information and compensates the toolface vector to account for an estimated geologic formation drift. The control system causes at least one control parameter to be modified in order to alter a drilling direction of the BHA based on the calculated toolface vector and transmits the at least one control parameter to the drilling rig to target the BHA in accordance with the calculated toolface vector. The control system iteratively performs this process until convergence with the desired target path is achieved. 1. A system for drilling a wellbore , the system comprising:a processor;a memory coupled to the processor, wherein the memory comprises instructions executable by the processor for:determining a current location of a bottom hole assembly (BHA) in a wellbore being drilled;generating a convergence path for drilling the wellbore from the current location of the BHA to a target path, wherein the convergence path comprises a slide drilling portion and a rotary drilling portion, and wherein the slide drilling portion of the convergence path compensates for a formation drift of a formation to be drilled with the rotary drilling portion; anddrilling a portion of the wellbore in accordance with the convergence path.2. The system according to claim 1 , wherein the instructions further comprise instructions for:determining an estimated amount of formation drift for the rotary drilling portion.3. The system according to claim 2 , wherein the instructions further comprise instructions for:generating a vector for the slide drilling portion which comprises a formation drift ...

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21-04-2016 дата публикации

METHODS AND SYSTEMS FOR REAL-TIME MONITORING AND PROCESSING OF WELLBORE DATA

Номер: US20160108714A1
Принадлежит:

Apparatus and methods for monitoring and processing wellbore data are disclosed. An integrated digital ecosystem comprises an applied fluid optimization specialist and one or more sensors communicatively coupled to the applied fluid optimization specialist. The applied fluid optimization specialist receives data relating to performance of subterranean operations from the one or more sensors and interprets the data received. The applied fluid optimization specialist then regulates the performance of subterranean operations based on the interpretation of the data received. 1. A method of optimizing performance of subterranean operations comprising:monitoring performance of a subterranean operation;determining whether the subterranean operation is being performed at an optimal level;identifying one or more causes for the subterranean operation not being performed at an optimal level; and 'wherein level of intervention depends on the one or more causes for the subterranean operation not being performed at an optimal level.', 'generating an intervention if the subterranean operation is not being performed at an optimal level,'}2. The method of claim 1 , wherein the level of intervention is selected from a group consisting of a low level intervention claim 1 , a medium level intervention claim 1 , and a high level intervention.3. The method of claim 1 , wherein determining whether the subterranean operation is being performed at an optimal level comprises comparing simulated rig data with actual rig data.4. The method of claim 1 , further comprising communicating the intervention to a Point of Contact claim 1 , wherein the Point of Contact handles the intervention.5. The method of claim 1 , wherein the subterranean operation is selected from a group consisting of a drilling operation and a hole cleaning operation.6. The method of claim 5 , wherein the subterranean operation is the drilling operation claim 5 , wherein determining whether the subterranean operation is being ...

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30-04-2015 дата публикации

Downhole Pressure/Thermal Perturbation Scanning Using High Resolution Distributed Temperature Sensing

Номер: US20150114628A1
Принадлежит: BAKER HUGHES INCORPORATED

A system, method and computer readable medium for determining a feature in a wellbore is disclosed. A distributed temperature sensing system is disposed along the wellbore. A thermal perturbation is induced along the wellbore. A profile is determined of temperature change in response to the applied thermal perturbation using the distributed temperature sensing system. The feature of the wellbore is determined using the measured temperature profile. 1. A method of determining a feature in a wellbore , comprising:disposing a distributed temperature sensing system along the wellbore;inducing a thermal perturbation along the wellbore;determining a profile of temperature change in response to the applied thermal perturbation using the distributed temperature sensing system; anddetermining the feature of the wellbore using the measured temperature profile.2. The method of wherein inducing the thermal perturbation further comprises at least one of: generating a pressure perturbation in a fluid in the wellbore and generating the temperature perturbation using a heating element disposed along the wellbore.3. The method of claim 2 , wherein the pressure perturbation is a pressure wave that propagates along the wellbore.4. The method of claim 3 , wherein the pressure wave is generated by a pressure oscillator disposed at one of: a downhole location; and a surface location.5. The method of claim 1 , wherein the feature of the wellbore is at least one of: a component of a work string in the wellbore; a near wellbore feature of the formation; a gas hydrate formation in a fluid flowing in a production string in the wellbore; a flow assurance barrier; a liquid-liquid interface; a gas-liquid interface; an unexpected release of gases or fluids; and a well leakage.6. The method of claim 1 , further comprising determining the feature with respect to a formation depth.7. The method of claim 1 , wherein a magnitude of the induced thermal perturbation is less than a resolution of the ...

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11-04-2019 дата публикации

Controller with Automatic Tuning and Method

Номер: US20190106976A1
Принадлежит: Individual

A controller system, comprising: a controller configured to control toward a desired process value, an arrangement to repetitively measure a value of the desired process value; wherein the controller is configured to execute a routine that: determines a moving average of the measured values, determines a moving standard deviation of the measured values, defines an outer zone of measured values with the determined moving average and a first plurality of the determined moving standard deviation, defines an inner zone of measured values with the determined moving average and a second plurality of the determined moving standard deviation, monitors the measured values for the occurrence of a first statistical event with respect to the outer zone and adjusting a gain of the controller by a first factor upon detection of the first statistical event, monitors the measured values for the occurrence of a second statistical event with respect to the inner zone and adjusting a gain of the controller by a second factor upon detection of the second statistical event.

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11-04-2019 дата публикации

METHOD FOR PRODUCING AN OIL WELL

Номер: US20190106978A1
Принадлежит:

This disclosure addresses the vibration problems that occur during drilling operations. Due to the rotational motion effected on the drill string while drilling, vibrations occur, and when these vibrations become excessive, the drill string may oscillate in a manner that could damage the pipes and damage other tools attached to the drill string. Machine learning is used to identify the vibration prone zones and provide recommendations to the driller to change the operating weight on bit (WOB) and rotation speed (RPM) to achieve drilling efficiency while reducing the possibility of damages downhole. 1. A method for producing an oil well , the method comprising:a. drilling into the Earth, the drilling being effected by a drill string, the drill string having a drill bit;b. obtaining real-time data from the drill string, the real-time data comprising, measured depth, drilling time, drill bit depth, weight on drill bit (WOB) data, revolution per minute (RPM) data, torque (TOR) data and rate of penetration (ROP) data;c. in accordance with the real-time data and in accordance with pre-determined rules, obtaining a drill string data classification scheme, which defines an optimum drilling parameter zone;d. performing a principal component analysis (PCA) of the real-time data, to obtain a set of principle components associated to the real-time data;e. selecting a subset of the set of principle components;f. in accordance with the subset of principles components, performing an inverse of the PCA, to obtain modified data;g. classifying the modified data in accordance with the drill string data classification scheme, to obtain classified modified data;h. comparing the classified modified data to the optimum drilling parameter zone, to obtain a comparison result; andi. adjusting at least one of the WOB and the RPM in accordance with the comparison result.2. The method of further comprising:displaying the classified modified data and the optimum drilling parameter zone.3. The ...

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26-04-2018 дата публикации

METHOD FOR ESTIMATING A TRANSIT TIME OF AN ELEMENT CIRCULATING IN A BOREHOLE

Номер: US20180112522A1
Принадлежит:

The disclosure relates to a method for estimating a transit time of an element circulating in a borehole during the drilling of the borehole. The transit time is representative of a time period for the element to move from the bottom of the borehole to its exit at the surface. The method comprises measuring a plurality of drilling parameters, computing a first signal of a first indicator based on a first set of measured drilling parameters and a second signal of a second indicator based on a second set of measured drilling parameters versus time. The first indicator is representative of a first type of events happening at the bottom of the borehole and the second indicator is representative of a second type of events happening at the exit of the borehole linked to the first type of events. The method also comprises characterizing a correlation between the first and second signals and determining a shift between the first and second signals. An estimated transit time is then determined from the shift. 1. Method for estimating a transit time of an element circulating in a borehole during the drilling of the borehole , wherein the transit time is representative of a time period for the element to move from the bottom of the borehole to the exit of the borehole situated at the surface , wherein the method comprises:measuring a plurality of drilling parameters,computing a first signal of a first indicator versus time, wherein the first indicator is obtained based on a first set of measured drilling parameters, and wherein the first indicator is representative of a first type of events happening at the bottom of the boreholecomputing a second signal of a second indicator versus time, wherein the second indicator is obtained based on a second set of measured drilling parameters, and wherein the second indicator is representative of a second type of events happening at the exit of the borehole, wherein the second type of events is linked to the first type of events, ...

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27-04-2017 дата публикации

USE OF DRILLING DATA FOR ENGINEERED COMPLETIONS

Номер: US20170114616A1
Принадлежит:

Methods may include applying a correlation between the probability of stress variations in a first well and variations in drilling data obtained from the first well to drilling data obtained from one or more additional wells; calculating a proportion of high stress and low stress contrast stages within the one or more additional wells; and creating one or more synthetic stress profiles for various completion techniques based on the calculated proportion of high stress and low stress contrast stages within the one or more additional wells; and using the one or more synthetic stress profiles to create a synthetic stress log for a geometric completion (GC) and an engineered completion (EC). Methods may also include obtaining drilling data from one or more wells; calculating a proportion of high stress and low stress contrast stages within the one or more additional wells; and creating one or more synthetic stress profiles for various completion techniques based on the calculated proportion of high stress and low stress contrast stages within the one or more wells. 1. A method comprising:applying a correlation between the probability of stress variations in a first well and variations in drilling data obtained from the first well to drilling data obtained from one or more additional wells;calculating a proportion of high stress and low stress contrast stages within the one or more additional wells; andcreating one or more synthetic stress profiles for various completion techniques based on the calculated proportion of high stress and low stress contrast stages within the one or more additional wells; andusing the one or more synthetic stress profiles to create a synthetic stress log for a geometric completion (GC) and an engineered completion (EC).2. The method of claim 1 , further comprising determining a production forecast for each of the GC and the EC.3. The method of claim 2 , further comprising flagging a subset of the one or more additional wells for EC based on ...

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13-05-2021 дата публикации

AUTOMATED REAL-TIME TRANSPORT RATIO CALCULATION

Номер: US20210140300A1
Принадлежит: Saudi Arabian Oil Company

Methods, systems, and computer-readable medium to perform operations including determining, in real-time, values of drilling parameters of a drilling system drilling a wellbore. The operations further include calculating, based on the values of the drilling parameters, a cuttings concentration in an annulus of the wellbore (CCA). Further, the operations include calculating, based on the calculated CCA and a mud weight (MW) of a drilling fluid, an effective mud weight (MW) of the drilling fluid. Yet further, the operations include calculating, based on the effective mud weight, a slip velocity of the cuttings. In addition, the operations include calculating, based on the slip velocity, a transport ratio (TR) of the cuttings. 1. A computer-implemented method comprising:determining, in real-time, values of drilling parameters of a drilling system drilling a wellbore;calculating, based on the values of the drilling parameters, a cuttings concentration in an annulus of the wellbore (CCA);{'sub': 'eff', 'calculating, based on the calculated CCA and a mud weight (MW) of a drilling fluid, an effective mud weight (MW) of the drilling fluid;'}calculating, based on the effective mud weight, a slip velocity of the cuttings; andcalculating, based on the slip velocity, a transport ratio (TR) of the cuttings.2. The computer-implemented method of claim 1 , wherein the effective mud weight is calculated using the equation: (MW)=(MW*CCA)+MW.3. The computer-implemented method of claim 1 , wherein the drilling parameters comprise:a rate of penetration (ROP) of a drilling tool of the drilling system, a hole size of the wellbore, and a flow rate (GPM) of the drilling fluid.7. The computer-implemented method of claim 1 , further comprising:controlling, based on the transport ratio, a component of the drilling system to adjust at least one of the drilling parameters.8. The computer-implemented method of claim 7 , wherein controlling claim 7 , based on the transport ratio claim 7 , a ...

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03-05-2018 дата публикации

Real time drilling monitoring

Номер: US20180119535A1
Принадлежит: Schlumberger Technology Corp

A method, system, and computer readable medium for managing drilling operations include calibrating a drilling model using collected drilling data, and executing, during a drilling operation, a simulation on the drilling model to generate a predicted measurement value for a drilling property. During the drilling operation and from a drillstring, an actual measurement value for the drilling property is obtained. Based on the actual measurement value matching the predicted measurement value, the simulation is extended to generate a simulated state of the drilling operation during the drilling operation, and a condition of the drilling operation is detected. A notification may be presented based on the condition during the drilling operation.

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14-05-2015 дата публикации

Method for Calculating and Displaying Optimized Drilling Operating Parameters and for Characterizing Drilling Performance with Respect to Performance Benchmarks

Номер: US20150129306A1
Принадлежит:

A method for optimizing drilling includes initializing values of a plurality of drilling operating parameters and drilling response parameters. In a computer, an initial relationship between the plurality of drilling operating parameters and drilling response parameters is determined. A drilling unit to drill a wellbore through subsurface formations. The drilling operating parameters and drilling response parameters are measured during drilling and entered into the computer. A range of values and an optimum value for at least one of the drilling response parameters and at least one of the drilling response parameters is determined in the computer. A display of the at least one of the plurality of drilling operating parameters and the at least one of the drilling response parameters is generated by the computer. 1. A method for optimizing drilling , comprising:initializing values of a plurality of drilling operating parameters and drilling response parameters;in a computer, determining an initial relationship between the plurality of drilling operating parameters and drilling response parametersoperating a drilling unit to drill a wellbore through subsurface formations;measuring the plurality of drilling operating parameters and plurality of drilling response parameters during drilling and entering the measurements into the computer;in the computer, determining a range of values and an optimum value for at least one of the plurality of drilling response parameters and a range of values and an optimum value of at least one of the plurality of drilling response parameters; andin the computer, generating a display of the at least one of the plurality of drilling operating parameters and the at least one of the drilling response parameters.2. The method of further comprising in the computer claim 1 , determining trends in the ranges and optimum values and generating a display of the ranges and optimum values for a selected distance beyond an end of the wellbore.3. The ...

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16-04-2020 дата публикации

DOWNHOLE TOOL DYNAMIC AND MOTION MEASUREMENT WITH MULTIPLE ULTRASOUND TRANSDUCER

Номер: US20200116005A1
Принадлежит: Halliburton Energy Services, Inc.

A method and system method for determining motion of a downhole tool and feeding back drilling performance. The method may comprise taking a synchronous tool face measurement of the downhole tool, taking a synchronous pulse-echo acquisition to estimate a shape of a borehole, inputting at least the shape of the borehole, the center trajectory of the downhole tool, the rotational time of the downhole tool, the position of the downhole tool, and the one or more measurements of the downhole tool into an information fusion for drilling dynamics, identifying at least one of a whirl, a vibration, or a stick-slip of the downhole tool, and identifying one or more borehole condition and a drilling efficiency. A system may comprise a downhole tool, at least two transducers, and an information handling system. 1. A method for determining motion of a downhole tool and feeding back drilling performance comprising:taking a synchronous tool face measurement of the downhole tool;taking a synchronous pulse-echo acquisition to estimate a shape of a borehole;identifying a center trajectory for the downhole tool;identifying a rotational time and a position for the downhole tool;identifying one or more measurements of the downhole tool;inputting at least the shape of the borehole, the center trajectory of the downhole tool, the rotational time of the downhole tool, the position of the downhole tool, and the one or more measurements of the downhole tool into an information fusion for drilling dynamics;identifying at least one of a whirl of the downhole tool, a vibration of the downhole tool, or a stick-slip of the downhole tool from the information fusion for drilling dynamics; andidentifying one or more borehole condition and a drilling efficiency based at least in part on the whirl of the downhole tool, the vibration of the downhole tool, and/or the stick-slip of the downhole tool.2. The method of claim 1 , wherein the downhole tool is a bottom hole assembly.3. The method of claim 1 , ...

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25-08-2022 дата публикации

IMAGE RECOGNITION BASED DRILLING CALIBRATION METHOD, DEVICE AND APPARATUS AND MEDIUM

Номер: US20220270281A1

A drilling calibration method, apparatus, device and medium based on image recognition includes lifting a top drive to a position of a derrick, and receiving and recognizing a target image acquired by an image acquisition apparatus of an operating terminal; calculating a quantity of pixels from the top drive to a rotary table surface in the target image by a data processing unit of the operating terminal; and receiving a height of the top drive measured by a diastimeter by the operating terminal. The height of the top drive is a height from the top drive to the rotary table surface. A pixel relationship table may be established between the quantity of the pixels from the top drive to the rotary table surface and the height of the top drive by a calibration unit of the operating terminal to finish drilling calibration. The pixel relationship table may be determined between the quantity of the pixels from the top drive to the rotary table surface and the height of the top drive by an image recognition technique to finish calibration of drilling, so that influence of a drilling environment to drilling calibration may be reduced greatly. 1. A drilling calibration method based on image recognition , the method comprising:lifting a top drive to a preset position of a derrick, and receiving and recognizing a target image acquired by an image acquisition apparatus by an image recognition unit of an operating terminal;calculating a quantity of pixels from the top drive to a rotary table surface in the target image by a data processing unit of the operating terminal;receiving a height of the top drive measured by a diastimeter by the operating terminal, wherein the height of the top drive is a height from the top drive to the rotary table surface; andestablishing a pixel relationship table between the quantity of the pixels from the top drive to the rotary table surface and the height of the top drive by a calibration unit of the operating terminal to finish calibration of ...

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25-04-2019 дата публикации

Method and System for Prioritizing and Allocating Well Operating Tasks

Номер: US20190122151A1
Принадлежит:

A method for managing well construction operations includes accepting as input to a computer a list of tasks required to complete construction of at least one wellbore, the list of tasks having at least an initial chronological order. Measurements of at least one parameter related to at least one task on the list of tasks is entered into the computer. The list of tasks is prioritized by at least one of changing a chronological order of performance or a length of time to complete at least one of the tasks based on measurements of the at least one parameter. The prioritizing is performed to optimize at least one well construction performance parameter. The prioritized list is displayed to at least one user of the computer. 126.-. (canceled).27. A method comprising:receiving a plan for directional drilling of a wellbore, wherein the plan comprises a sequence of procedures and associated planned well states;receiving measurements that comprise measurements made in the wellbore during the directional drilling of the wellbore;calculating drilling response parameters for the directional drilling of the wellbore using the measurements to determine an actual well state;determining a difference between one of the planned well states and the actual well state;responsive to the difference, dynamically generating an adjusted procedure;issuing command signals according to the adjusted procedure;receiving additional measurements during the directional drilling of the wellbore according to the command signals;calculating drilling response parameters for the adjusted procedure using the additional measurements to determine an actual adjusted well state; andusing the actual adjusted well state to decide whether to return to the plan or to generate another adjusted procedure.28. The method of wherein the measurements comprise one or more downhole tool measurements.29. The method of wherein the command signals comprise corresponding drilling operating parameters.30. The method of ...

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02-05-2019 дата публикации

MONITORING SYSTEM WITH AN INSTRUMENTED SURFACE TOP SUB

Номер: US20190128114A1
Принадлежит:

An embodiment a monitoring and control system that includes an instrumented top sub configured to obtain drilling data. 1. An instrumented sub configured to be coupled to a drill string at or above a rig floor surface of a drilling rig , the instrumented sub comprising:a body including a top end, a bottom end spaced from the top end in an axial direction, and an internal passage that extends from the top end to the bottom end along the axial direction, the internal passage configured to receive therethrough a drilling fluid when the body is coupled to the drilling rig;a plurality of sensors carried by the body, each sensor configured to obtain data indicative of a drilling parameter;a controller electrically connected to the plurality of sensors, the controller configured to control operation of the plurality of sensors; anda communication device electrically connected to the controller, the communication device configured to transmit data obtained by the sensors to a computing device on the drilling rig.2. The instrumented sub of claim 1 , wherein the body includes base pipe and a housing coupled to the base pipe and that surrounds the base pipe claim 1 , wherein the internal passage extends through the base pipe and the housing one or more of the plurality of sensors.3. The instrumented sub of claim 1 , wherein the top end of the body defines a threaded connection end for threadably connecting to a rotating member of a top drive unit claim 1 , wherein the bottom end of the body defines a threaded connection end for threadably connecting to either: a) a top of a drill string tubular claim 1 , b) a top of a blowout preventer claim 1 , or c) a saver sub.4. (canceled)5. The instrumented sub of claim 1 , further comprising a power assembly configured to supply power to the sensors claim 1 , the controller claim 1 , and the communication device.6. The instrumented sub of claim 5 , wherein the power assembly includes a first power source configured to supply the power ...

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03-06-2021 дата публикации

SYSTEMS, APPARATUSES, AND METHODS FOR AUTOMATED CONTROL OF BLASTHOLE DRILL BASED ON PERFORMANCE MONITORING

Номер: US20210164335A1
Принадлежит: Peck Tech Consulting Ltd.

An advanced real-time drilling control system can comprise circuitry configured to continuously monitor, in real time, drilling performance of an electric drilling machine as the electric drilling machine drills a blasthole using a rotary tricone drill bit. The continuous monitoring can include continuously collecting, according to a predetermined sampling rate, drill performance data from one or more sensors of the electric drilling machine in real time. The circuitry can also be configured to adjust, in real time, pulldown pressure/rate and rotary speed of the rotary tricone drill bit of the electric drilling machine to optimize penetration rate of the rotary tricone drill bit based on the drill performance data and output of one or more machine learning operations applied to the drill performance data. 1. An advanced real-time drilling control system comprising:a real-time control sub-system including an embedded computing platform, programmable logic controller, and embedded software, the real-time control sub-system being configured to:continuously monitor, in real time, drilling performance of an electric drilling machine as the electric drilling machine drills a blasthole using a rotary tricone drill bit, the continuously monitoring including continuously collecting, according to a predetermined sampling rate, drill performance data from one or more sensors of the electric drilling machine in real time, andadjust, in real time, pulldown pressure/rate and rotary speed of the rotary tricone drill bit of the electric drilling machine to optimize penetration rate of the rotary tricone drill bit based on the drill performance data and output of one or more machine learning operations applied to the drill performance data.2. The advanced real-time drilling control system of claim 1 , wherein additional information and inputs of geological conditions in an area being drilled claim 1 , characteristics of the rotary tricone drill bit claim 1 , and/or specific electric ...

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21-05-2015 дата публикации

Wellbore Pipe Trip Guidance and Statistical Information Processing Method

Номер: US20150142318A1
Принадлежит:

A method for optimizing wellbore pipe tripping operation includes entering into a computer parameters related to a maximum safe pipe movement speed within the wellbore along at least one selected depth interval along the wellbore. A maximum safe pipe movement speed is calculated. An actual pipe movement speed is measured along the at least one selected depth interval. In the computer, a display is generated of the measured pipe movement speed along with the maximum safe pipe movement speed over the at least one selected depth interval. 1. A method for optimizing wellbore pipe tripping operation , comprising:entering into a computer parameters related to a maximum safe pipe movement speed within the wellbore along at least one selected depth interval along the wellbore;in the computer, calculating the maximum safe pipe movement speed along the at least one selected depth interval;measuring an actual pipe movement speed along the at least one selected depth interval;in the computer, generating a display of the measured pipe movement speed along with the maximum safe pipe movement speed over the at least one selected depth interval.2. The method of wherein the parameters related to the maximum safe pipe movement speed comprise a) length claim 1 , size claim 1 , unit weight of drill pipe claim 1 , b) length claim 1 , size claim 1 , unit weight of drill collars claim 1 , c) wellbore diameter claim 1 , d) drilling fluid viscosity and e) drilling fluid density.3. The method of further comprising calculating a target range maximum pipe movement speed using the calculated maximum safe pipe movement speed and a predetermined safety factor.4. The method of further comprising entering the parameters for the entire length of the wellbore and calculating the target range maximum pipe movement speed for the entire length of the wellbore.5. The method of further comprising in the computer claim 4 , generating the display for each stand of pipe moved along the wellbore.6. The method ...

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09-05-2019 дата публикации

Milling Bypass Valve

Номер: US20190136653A1
Принадлежит: Baker Hughes, a GE company, LLC

A method and apparatus for controlling fluid flow through a drill string includes a housing having an axis, a radial wall with a bore extending axially therethrough, and an aperture formed in the radial wall. The aperture is in fluid communication with the bore. A piston is located inside the housing and has an orifice configured to permit axial fluid flow through the housing. The spring axially biases the piston to a closed position. 1. A flow control apparatus to a borehole tool supported on a tubular string , comprising:a housing further comprising an inlet, a straight through outlet and at least one lateral wall port;a piston in said housing selectively covering said wall port, said piston comprising a straight through passage from a top end thereof in flow communication with said straight through outlet and a discrete lateral passage beginning adjacent said top end to a circulation outlet and extending to an outer periphery of said piston, said circulation outlet movable into aligned or misaligned positions with respect to said at least one lateral wall port responsive to flow generated force opposing a bias force on said piston.2. The apparatus of claim 1 , wherein:said discrete lateral passage intersects said straight through passage.3. The apparatus of claim 1 , wherein:said discrete lateral passage does not intersect said straight through passage.4. The apparatus of claim 1 , wherein:said piston is rotationally locked to said housing.5. The apparatus of claim 1 , wherein:said piston further comprises a travel stop at a location of axial alignment of said circulation outlet and said lateral wall port.6. The apparatus of claim 1 , wherein:said discrete lateral passage further comprises a crescent shaped inlet at said top end of said piston.7. The apparatus of claim 1 , wherein:said housing defines an interior plenum about said at least one lateral wall port; said discrete lateral passage comprising multiple outlets selectively axially aligned with said plenum ...

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26-05-2016 дата публикации

DRILL PIPE OSCILLATION REGIME FOR SLIDE DRILLING

Номер: US20160145993A1
Принадлежит:

Apparatuses, methods, and systems include rotary drilling a first segment of a wellbore by rotating a drill string with a top drive forming a part of a drilling rig apparatus for a first period of time; obtaining data from a sensor disposed about the drilling rig apparatus while rotary drilling for at least a part of the first period of time; and based on the data from the sensor, determining a proposed oscillation revolution amount for the drill string to reduce friction of the drill string in the downhole bore without changing the direction of a bottom hole assembly while slide drilling. 1. A drilling method , comprising:rotary drilling a first segment of a wellbore by rotating a drill string with a top drive forming a part of a drilling rig apparatus for a first period of time;obtaining data from a sensor disposed about the drilling rig apparatus while rotary drilling for at least a part of the first period of time;based on the data from the sensor, determining a proposed oscillation revolution amount for the drill string to reduce friction of the drill string in the downhole bore without changing the direction of drilling of a bottom hole assembly on the drill string; andslide drilling a second segment of the wellbore while oscillating the drill string using the proposed oscillation revolution amount during a second period of time.2. The method of claim 1 , comprising automatically assigning the proposed oscillation revolution amount to a control system of the top drive so that the slide drilling is performed while oscillating at the proposed oscillation revolution amount.3. The method of claim 1 , wherein obtaining data from a sensor comprises:obtaining data from multiple sensors measuring multiple different parameters about the drilling rig; andcombining the data to create a drilling resistance function representative of the data from the multiple sensors,wherein determining the proposed oscillation revolution is based on the drilling resistance function.4. ...

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16-05-2019 дата публикации

Closed loop control of drilling toolface

Номер: US20190145173A1
Принадлежит: Schlumberger Technology Corp

A downhole closed loop method for controlling a drilling toolface includes measuring first and second attitudes of the subterranean borehole at corresponding first and second upper and lower survey stations. The first and second attitudes are processed downhole while drilling to compute an angle change of the subterranean borehole between the upper and lower survey stations. The computed angle change is compared with a predetermined threshold. This process may be continuously repeated while the angle change is less than the threshold. The first and second attitudes are further processed downhole to compute a toolface angle when the angle change of the subterranean borehole is greater than or equal to the threshold. The toolface angle may then be further processed to control a direction of drilling of the subterranean borehole.

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16-05-2019 дата публикации

System and Method for Detecting a Mode of Drilling

Номер: US20190145240A1
Принадлежит:

A system and method for surface steerable drilling are provided. In one example, the method includes monitoring operating parameters for drilling rig equipment and bottom hole assembly (BHA) equipment for a BHA, where the operating parameters control the drilling rig equipment and BHA equipment. The method includes receiving current inputs corresponding to performance data of the drilling rig equipment and BHA equipment during a drilling operation and determining that an amount of change between the current inputs and corresponding previously received inputs exceeds a defined threshold. The method further includes determining whether a modification to the operating parameters has occurred that would result in the amount of change exceeding the defined threshold and identifying that a problem exists in at least one of the drilling rig equipment and BA equipment if no modification has occurred to the operating parameters. The method includes performing a defined action if a problem exists. 1. A computer system for detecting a slide drilling mode of a drilling rig system , the computer system comprising:a processor coupled to a drilling rig system and to a memory, the memory comprising instructions executable by the processor, wherein the instructions comprise instructions for:(a) receiving data from one or more surface sensors of the drilling rig system;(b) detecting a flow rate of a drilling mud, a stationary condition of a bottom hole assembly (BHA) in a wellbore, and an on bottom condition of the BHA, wherein the detection of the flow rate of the drilling mud is determined when a standpipe pressure exceeds a standpipe pressure threshold; and(c) responsive to the flow rate of the drilling mud, the stationary condition of the BHA, and the on bottom condition of the BHA, determining if the drilling rig system is in a slide mode of drilling.2. The computer system according to wherein the instructions further comprise instructions for determining claim 1 , if a slide ...

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31-05-2018 дата публикации

METHOD AND SYSTEM FOR DAMPING VIBRATIONS IN A TOOL STRING SYSTEM

Номер: US20180149012A1
Принадлежит:

The invention provides a control system and method for limiting vibrations in a tool string system, comprising a relatively heavy rotatable device, such as a pump system or a bottom hole assembly, connected to a long rotatable tool string driven by a drive system. The control system comprises feedback of both torque and rotational speed signals to correct the set rotational speed. An objective is to maintain the drive speed over torque ratio equal to the connected tool string impedance. A secondary objective, for lower frequencies, is to approach and maintain a setpoint speed as drive rotation speed. The system may include a rotational speed sensor and a torque sensor, with the latter optionally replaced by a motor torque signal already available from a variable frequency drive (VFD) for an AC motor and the current safeguarding signal for a DC motor. 1. A method of damping vibrations in a tool string , said vibrations comprising torsional waves propagating along said tool string , the method comprising the steps of:{'sub': 'r', 'instructing a drive system to rotate the tool string at a set rotational speed (Ω);'}{'sub': 'r', 'determining a rotational speed (ω) of the tool string;'}{'sub': 'd', 'determining a torque (T) proximate an interface between the tool string and the drive system;'}determining a tool string impedance (ζ) of a section of the tool string adjacent said interface;{'sub': 'd', 'calculating a rotation correction signal using the determined torque (T) multiplied by the determined tool string impedance (ζ);'}{'sub': r', 'r,cor, 'correcting the set rotational speed (Ω) using the rotation correction signal to provide a corrected set rotational speed (Ω) signal;'}{'sub': r', 'r,2cor, 'subtracting the determined rotational speed (ω) from the corrected set rotational speed signal to provide a twice corrected set rotational speed (Ω) signal to the drive system; and'}{'sub': 'r,2cor', 'providing the twice corrected set rotational speed (Ω) signal to a speed ...

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01-06-2017 дата публикации

Method and device for estimating downhole string variables

Номер: US20170152736A1
Автор: Åge KYLLINGSTAD
Принадлежит: NATIONAL OILWELL VARCO NORWAY AS

A method for estimating downhole speed and force variables at an arbitrary location of a moving drill string based on surface measurements of the same variables. The method includes a) using properties of said drill string to calculate transfer functions describing frequency-dependent amplitude and phase relations between cross combinations of said speed and force variables at the surface and downhole; b) selecting a base time period; c) measuring surface speed and force variables, conditioning the measured data by applying anti-aliasing and/or decimation filters, and storing the conditioned data, and d) calculating the downhole variables in the frequency domain by applying an integral transform, such as Fourier transform, of the surface variables, multiplying the results with said transfer functions, applying the inverse integral transform to sums of coherent terms and picking points in said base time periods to get time-delayed estimates of the dynamic speed and force variables.

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23-05-2019 дата публикации

METHOD AND SYSTEM FOR PERFORMING AUTOMATED DRILLING OF A WELLBORE

Номер: US20190153848A1
Принадлежит:

Methods, systems, and techniques for performing automated drilling of a wellbore. The wellbore is drilled in response to a first drilling parameter target (such as weight on bit) that includes a first drilling parameter offset modified by a first drilling parameter perturbation signal. A first drilling performance metric (such as rate of penetration) is measured and is indicative of a response of the drilling to the first drilling parameter target. An output of a first objective function is determined using the measured first drilling performance metric. A first correlation between the output of the first objective function and the first drilling parameter perturbation signal, and an integral of the first correlation, are determined. The first drilling parameter target is updated using the integral modified by the first drilling parameter perturbation signal. The wellbore is drilled in response to the updated first drilling parameter target. 1. A method for performing automated drilling of a wellbore , the method comprising:(a) drilling the wellbore in response to a first drilling parameter target, wherein the first drilling parameter target comprises a first drilling parameter offset modified by a first drilling parameter perturbation signal;(b) performing a measurement to obtain a first drilling performance metric that is indicative of a response of the drilling to the first drilling parameter target;(c) determining an output of a first objective function using the first drilling performance metric;(d) using the output of the first objective function and the first drilling parameter perturbation signal to update the first drilling parameter target; and(e) after the first drilling parameter target has been updated, drilling the wellbore in response to the first drilling parameter target.2. The method of claim 1 , wherein (d) comprises:determining a first correlation between the output of the first objective function and the first drilling parameter perturbation ...

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14-05-2020 дата публикации

ULTRASONIC BORESCOPE FOR DRILLED SHAFT INSPECTION

Номер: US20200149385A1
Принадлежит: Aver Technologies, Inc

A borescope includes a housing extending from a first end toward a second end, the housing including a first transparent viewing section extending circumferentially around a longitudinal axis of the housing and defining an exterior of a portion of the housing; a first imaging assembly configured to rotate about the longitudinal axis of the housing, and also pivot relative to the longitudinal axis of the housing; and a second imaging assembly disposed within the housing, the second imaging assembly being configured to rotate about the longitudinal axis of the housing, wherein the second imaging assembly is configured to visualize a field of view exterior of the housing through the first transparent viewing section. 120-. (canceled)21. A borescope , comprising:a housing extending from a first end toward a second end;a first imaging assembly configured to view a region exterior of the borescope; andan ultrasound sensor at or adjacent to the second end of the housing, wherein an output from the ultrasound sensor is used determine a thickness of sediment disposed at a bottom of a borehole.22. The borescope of claim 21 , wherein the ultrasound sensor is configured to generate ultrasound waves; andthe borescope further includes a reflector movable toward and away from the ultrasound sensor along a longitudinal axis of the borescope, or along a first axis parallel to the longitudinal axis, wherein the reflector is configured to reflect the ultrasound waves generated by the ultrasound sensor back toward the ultrasound sensor.23. The borescope of claim 22 , wherein the borescope is configured to determine a time-of-flight for a wave to travel from the ultrasound sensor to the reflector claim 22 , and then back to the first ultrasound sensor.24. The borescope of claim 23 , wherein:the reflector is movable between a fully compressed position and a fully extended position;the reflector is disposed closer to the first ultrasound sensor when in the fully compressed position than ...

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14-05-2020 дата публикации

Generating Drilling Paths Using A Drill Model

Номер: US20200149386A1
Автор: Menand Stephane
Принадлежит:

A method of modeling a wellbore path in an earth model, including receiving, from an electronic drilling recorder coupled to a bottom hole assembly (BHA), a set of BHA data, and a set of operating parameters data and receiving, a set of rock formation data; generating, a representation of a wellbore path in a first section of the earth model, by assessing the set of BHA data, the set of operating parameters data, the set of rock formation data, and a first set of parameters quantifying bit steerability, walk, coefficient of friction, and overgauge borehole information. The method includes modifying, based on data received from a survey corresponding to the first section of the earth model, the first set of parameters to generate a second set of parameters, and generating a future wellbore path in a second section of the earth model by applying the second set of parameters. 1. A computer-implemented method of modeling a wellbore path in an earth model , the method comprising:receiving, from an electronic drilling recorder (EDR) coupled to a bottom hole assembly (BHA) of a drilling rig, a set of BHA data, and a set of operating parameters data;receiving a set of rock formation data;generating, by a computer system, a representation of a wellbore path in a first section of the earth model, by assessing the set of BHA data, the set of operating parameters data, the set of rock formation data, and a first set of parameters quantifying bit steerability, walk, coefficient of friction, and overgauge borehole information;modifying, by the computer system and based on data received from a survey corresponding to the first section of the earth model, the first set of parameters to generate a second set of parameters; andgenerating, by the computer system, a future wellbore path in a second section of the earth model by applying the second set of parameters.2. The computer-implemented method of claim 1 , wherein generating the representation of the wellbore path further ...

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14-06-2018 дата публикации

METHODS AND SYSTEMS FOR DRILLING BOREHOLES IN EARTH FORMATIONS

Номер: US20180163527A1
Принадлежит:

Methods of drilling earth formations may involve removing a portion of an underlying earth formation utilizing cutting elements of an earth-boring drill bit. A rotational speed of the drill string may be sensed utilizing a first sensor. A rate of penetration of the drill string during advancement of the earth-boring drill bit may be sensed utilizing a second sensor. An instantaneous average depth of cut of cutting elements of the earth-boring drill bit may be determined utilizing a control unit to calculate the instantaneous average depth of cut based on a sensed rotational speed of the drill string and a sensed speed of advancement of the drill string. The weight on the earth-boring drill bit may be increased utilizing the drawworks when the instantaneous average depth of cut is less than the predetermined minimum depth of cut. 1. A system for drilling into an earth formation , comprising:an earth-boring drill bit comprising fixed cutting elements configured to engage with and remove an underlying earth formation;a drill string configured to be connected to the earth-boring drill bit to transfer longitudinal and rotational loads to the earth-boring drill bit;a drawworks configured to suspend the earth-boring drill bit and the drill string and to apply weight to the earth-boring drill bit via the drill string to advance the earth-boring drill bit into the underlying earth formation;a first sensor operatively associated with the drill string, the first sensor configured to sense a rotational speed of the drill string;a second sensor operatively associated with the drill string, the second sensor configured to sense a rate of penetration of the drill string during advancement of the earth-boring drill bit; and determine an instantaneous average depth of cut of the cutting elements of the earth-boring drill bit utilizing a sensed rotational speed of the drill string and a sensed speed of advancement of the drill string;', 'compare the instantaneous average depth of cut ...

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15-06-2017 дата публикации

Determining Water Salinity and Water-Filled Porosity of a Formation

Номер: US20170167256A1
Автор: Torres David Orlando
Принадлежит: Halliburton Energy Services, Inc.

An illustrative method of determining water-filled porosity of a formation that includes acquiring a downhole temperature, acquiring a total porosity of the formation, acquiring a dielectric measurement of the formation, determining a water salinity based on the temperature, total porosity, and dielectric measurement. The method further includes determining a water-filled porosity of the formation based at least in part on the water salinity. 1. A method of determining water-filled porosity of a formation , comprising:acquiring a downhole temperature;acquiring a total porosity of the formation;acquiring a dielectric measurement of the formation;determining a water salinity based on the temperature, total porosity, and dielectric measurement; anddetermining a water-filled porosity of the formation based at least in part on the water salinity.2. The method of claim 1 , further comprising presenting a log of the water-filled porosity to a user.3. The method of claim 1 , wherein said temperature claim 1 , total porosity claim 1 , and dielectric measurements are acquired as a function of depth or position along a borehole claim 1 , and wherein said determining a water-filled porosity includes creating a log of said water-filled porosity as a function of depth or position along a borehole.4. The method of claim 1 , wherein said determining a water salinity further comprises relating the real and imaginary components of water's dielectric constant.5. The method of claim 1 , wherein determining the water salinity and determining the water-filled porosity are performed by a processor in real-time.6. The method of claim 1 , further comprising determining a hydrocarbon porosity of the formation based on the water-filled porosity.7. The method of claim 1 , wherein said determining a water salinity includes obtaining temperature-dependent function coefficients expressing a dependence of real and imaginary components of water's dielectric constant on salinity.8. The method of ...

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18-09-2014 дата публикации

MEASURING TORQUE IN A DOWNHOLE ENVIRONMENT

Номер: US20140262514A1
Автор: Beylotte James E.
Принадлежит: Smith International, Inc.

A drilling system may include one or more downhole components to which a torque is applied. To determine the torque, the rotational velocity may be determined at two locations on a downhole component. An angle of twist may be determined by taking the integral of the rotational velocity at the two points, and the torque may be proportional to the angle of twist. The angle of twist, physical properties based on the geometry and material of the downhole component may be used, and the distance between the two locations may be used to calculate the torque. 1. A method for determining torque on a downhole component within a wellbore , comprising:obtaining a first rotational velocity measurement at a first location of a downhole component;obtaining a second rotational velocity measurement at a second location of the downhole component; andcalculating torque on the downhole component using the first and second rotational velocity measurements.2. The method recited in claim 1 , wherein calculating torque on the downhole component includes:integrating the first and second rotational velocity measurements.3. The method recited in claim 1 , wherein calculating torque on the downhole component includes:calculating an angle of twist of the downhole component.4. The method recited in claim 3 , further comprising:calculating a difference between an integral of the first rotational velocity measurement and an integral of the second rotational velocity measurement.5. The method recited in claim 1 , wherein calculating torque on the downhole component includes calculating torque upon start-up of rotation of the downhole component.6. The method recited in claim 1 , further comprising:calculating mechanical power transmitted through the downhole component.7. The method recited in claim 1 , wherein calculating torque includes determining a length between the first and second locations of the downhole component.8. The method recited in claim 7 , wherein the length is a predetermined ...

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18-09-2014 дата публикации

ENVIRONMENTAL SEVERITY MEASUREMENT TOOL

Номер: US20140262515A1
Принадлежит:

An environmental severity measurement tool measures acceleration along 3 axes to determine shock and vibration affecting a downhole tool in which the environmental severity measurement tool is disposed. The environmental severity measurement tool includes a replaceable battery and electronics disposed within an external housing. A pin provides a way to ensure the environmental severity measurement tool is oriented in a known orientation. Data sampled by the tool can be downloaded from the tool to an external device through a connector port of the electronics. Software in the tool controls the operation of the tool and can he configured from an external device. 1. An environmental severity measurement tool , comprising:an external housing, configured for disposal in a downhole tool, open at one end;a replaceable battery, disposed in the external housing; a processor, electrically connected to the battery;', 'a connector port configured to allow connection to an external device, coupled to the processor;', 'three accelerometers configured to measure acceleration along three axes, coupled to the processor; and', sample measurements from the three accelerometers;', 'calculate acceleration along three axes;', 'store calculated acceleration data; and', 'download the stored acceleration data to the external device via the connector port., 'a memory, coupled to the processor on which is stored software for causing the processor to], 'an electronics portion disposed within the external housing, comprising2. The environmental severity measurement tool of claim 1 , further comprising:a battery housing removably disposed in the external housing, wherein the battery is disposed within the battery housing;a first battery contact, configured for electrical connection with a first terminal of the battery; and a first portion, configured for contact with a second terminal of the battery; and', 'a second portion, movable relative to the first portion, wherein the second portion ...

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21-06-2018 дата публикации

MONITOR AND CONTROL OF DIRECTIONAL DRILLING OPERATIONS AND SIMULATIONS

Номер: US20180171776A1
Принадлежит:

In some embodiments, a method includes performing a directional drilling operation using a drill string having a drilling motor and cutting structures that include a drill bit and a reamer. The method includes receiving data from one or more sensors, wherein at least one of the one or more sensors output data related to at least one performance attribute associated with load monitoring between the drill bit and the reamer. The load monitoring is distributed between the drill bit and the reamer by the drilling motor. The at least one performance attribute comprises a differentiation of distribution of at least one of a weight and a torque applied to each of the drill bit and the reamer. The method includes displaying the data related to the at least one performance attribute associated with the load monitoring in a graphical and numerical representation on a graphical user interface screen. 1. A method comprising:performing a directional drilling operation using a drill string having a drilling motor and cutting structures that include a drill bit and a reamer;receiving data from one or more sensors, wherein at least one of the one or more sensors output data related to at least one performance attribute associated with load monitoring between the drill bit and the reamer, wherein the load monitoring is distributed between the drill bit and the reamer by the drilling motor, and wherein the at least one performance attribute comprises a differentiation of distribution of at least one of a weight and a torque applied to each of the drill bit and the reamer; anddisplaying the data related to the at least one performance attribute associated with the load monitoring in a graphical and numerical representation on a graphical user interface screen.2. The method of claim 1 , wherein displaying the data comprises displaying a graphical representation of torque relative to an operating differential pressure across the drilling motor.3. The method of claim 2 , wherein ...

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06-06-2019 дата публикации

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW THROUGH DRILL STRING

Номер: US20190169960A1
Принадлежит:

A device for limiting the flow of drilling fluid through a section of drill string includes a body with a hole in the periphery. Flow enters the device through one axial end, at least a portion of the flow exits through the other axial end. Some of the fluid flow can be diverted through the peripheral hole. A spring-biased axial piston may have an approximately constant force throughout its range of travel. The piston moves axially in response to the changing fluid flow rate to enable a constant amount of flow exiting the axial end of the tool to be achieved while diverting away excess flow through the side. 1. An apparatus , comprising:a housing having an axis, a radial wall with a bore extending axially through the radial wall, and an aperture formed in the radial wall, the aperture being in fluid communication with the bore;a component located inside the housing and having an orifice configured to permit axial fluid flow through the housing;a bias device located in the housing and configured to bias the component to a closed position; andthe component is movable from the closed position wherein the component is configured to substantially close the aperture in the housing to substantially block fluid flow therethrough when downhole axial fluid flow through the orifice is insufficient to overcome a bias of the bias device, and an open position wherein the component is configured to permit fluid flow through the aperture when downhole axial fluid flow through the orifice is sufficient to overcome the bias of the bias device and move the component.2. (canceled)3. The apparatus of claim 1 , further comprising a sleeve located between the bore of the housing and the component claim 1 , the sleeve is configured to be stationary relative to the housing claim 1 , and the component is configured to be movable relative to the sleeve.4. The apparatus of claim 3 , wherein the sleeve is consumable and comprises a sleeve material that is harder than a material of the housing.5 ...

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06-06-2019 дата публикации

SYSTEMS AND METHODS FOR MEASURING RATE OF PENETRATION

Номер: US20190169978A1
Принадлежит:

Systems and methods for measuring rate of penetration (ROP) and well depth of a drill string are disclosed. As the drill string is constructed, a pair of rangefinders are positioned near the well site and are configured to measure a distance to points on the drill string without human intervention. The rangefinders calculate a length of drill string segments the measured distances and from the length and an elapsed time calculate an accurate, automatically generated ROP. 1. A system for calculating rate of penetration (ROP) , comprising:a drill string having a plurality of pipe segments coupled together end-to-end, the drill string being configured to advance into a wellbore during a drill operation;a first rangefinder and a second rangefinder configured to observe the pipe segments as the pipe segments advance into the wellbore, the first rangefinder being spaced apart from the second rangefinder, wherein the first and second rangefinders are configured to locate at least one identifier on one or more pipe segments; anda calculation component configured to calculate a penetration distance by summing distances between identifiers and to calculate the ROP as the penetration distance achieved during an elapsed time.2. The system of wherein one of the identifiers is attached to the drill string and the other identifier is fixed at a reference point.3. The system of wherein the identifiers comprise an end of the pipe segments claim 1 , and wherein the ends are located using edge detection.4. The system of wherein the rangefinders are configured to perform a LiDAR measurement of the identifiers.5. The system of wherein the rangefinders are configured to acoustically locate the identifiers.6. The system of wherein the first and second rangefinders have an observable range claim 1 , and wherein the identifiers are located on pipe segments at intervals less than the observable range.7. The system of wherein each pipe segment has at least one identifier.8. The system of ...

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06-06-2019 дата публикации

REAL-TIME SYNTHETIC LOGGING FOR OPTIMIZATION OF DRILLING, STEERING, AND STIMULATION

Номер: US20190169986A1
Принадлежит:

The present disclosure generally relates to a real-time synthetic logging method for optimizing one or more operations in a well. The method generally includes receiving measurements of one or more parameters in real time while performing operations in the well, the measurements being captured without using tools that include active nuclear sources. The method further includes providing the measurements as input to a machine learning algorithm (MLA) that is trained using historical or training well data. The method further includes generating, using the MLA and based on the measurements, a synthetic mechanical property log of the well. The method further includes generating, based on the synthetic mechanical property log, optimized parameters for at least one operation selected from the following list: drilling the well in real-time; steering the well in real-time; and stimulating a reservoir in real-time. 1. A real-time synthetic logging method for optimizing one or more operations in a well , comprising:receiving measurements of one or more parameters in real time while performing operations in the well, wherein the measurements are captured without using tools that include active nuclear sources;providing the measurements as input to a machine learning algorithm (MLA) that is trained using historical or training well data; a real-time synthesized porosity at or near the bit position;', 'a real-time synthesized density at or near the bit position; and', 'a real-time synthesized sonic velocity at or near the bit position; and, 'generating, using the MLA and based on the measurements, a synthetic mechanical property log of the well, wherein the synthetic mechanical property log comprises at least one option selected from the following list drilling the well in real-time;', 'steering the well in real-time; and', 'stimulating a reservoir in real-time., 'generating, based on the synthetic mechanical property log, optimized parameters for at least one operation selected ...

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02-07-2015 дата публикации

METHOD OF, AND A SYSTEM FOR, DRILLING TO A POSITION RELATIVE TO A GEOLOGICAL BOUNDARY

Номер: US20150185715A1
Принадлежит:

A system () for drilling to a position relative to a geological boundary in a geological formation includes a sensor pack () for sensing parameters associated with a drilling operation carried out in the geological formation by a drill (). A data storage module () stores a geological model of the geological formation and data relating to the sensed parameters, the geological model including data relating to the geological boundary. A processor module () is configured to monitor the drilling operation using the data related to the sensed parameters and to locate the position of a drill bit of the drill () in the geological formation and its corresponding position within the geological model. The processor module () is further configured to generate an end point at a defined position relative to the geological boundary. A drill controller () communicates with the processor module (), the drill controller () being configured to control operation of the drill and to cause the drill () to cease drilling when the end point has been reached. 1. A method of drilling to a position relative to a geological boundary in a geological formation , the method includingsensing borehole parameters while a borehole is being drilled in the geological formation;feeding the sensed parameters to a controller which controls operation of a drill drilling the borehole;using the sensed parameters to locate the position of a drill bit of the drill in the geological formation and its corresponding position within a geological model of the geological formation being drilled;generating a geological model map, including an end point at a pre-defined position relative to the geological boundary, from the geological model and providing the geological model map to the drill controller;using the sensed parameters and the geological model map also to locate the position of the drill bit of the drill relative to the geological boundary; andusing the controller to drill to the end point.2. The method of ...

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08-07-2021 дата публикации

Process automation optimizes the process of placing a drill bit on the bottom of the wellbore

Номер: US20210207468A1
Принадлежит: National Oilwell Varco Inc

Tagging bottom utilizing an automated control system and downhole tools may include determining, by a computer processor, that a drill bit has reached a predetermined distance from a bottom of a wellbore, in response to determining that the bit has reached the predetermined depth, transmitting a rate of penetration set point to reduce a lowering speed of the drill bit, directing the drill bit based on the rate of penetration, determining, by the computer processor, that the rate of penetration is stable, in response to the determining that the rate of penetration has stabilized, automatically taring a surface weight on the drill bit and a differential pressure, and in response to determining that the bit is within a predetermined off bottom range, monitoring for a true bottom based on one or more parameter triggers.

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30-06-2016 дата публикации

SEQUENTIAL FULLY IMPLICIT WELL MODEL WITH TRIDIAGONAL MATRIX STRUCTURE FOR RESERVOIR SIMULATION

Номер: US20160187534A1
Автор: Dogru Ali H.
Принадлежит:

A subsurface hydrocarbon reservoir with a horizontal well or multiple vertical wells is simulated by sequential solution of reservoir and well equations to simulate fluid flow inside the reservoir and well production rates. Sequential solution of reservoir and well equations treats wells as specified bottom hole pressure wells. This avoids solving large matrices resulting from the simultaneous solution of the reservoir and well equations which can be computationally very expensive for large number of unknowns and require special sparse matrix solvers. Such sequential solution involves regular reservoir system solvers complemented by small matrices for the numerical solution of the well bottom hole pressures. The solution is performed on tridiagonal matrices for the adjacent reservoir cells to the well cells at the perforated well intervals; and a vector of the unknown reservoir potentials for the adjacent reservoir cells. 2. The computer implemented method of claim 1 , wherein the tridiagonal matrix of the reservoir cells comprises a diagonal representing the transmissivities of the cells of the reservoir.3. The computer implemented method of claim 1 , wherein the steps of solving the coupled well reservoir model comprise applying a full matrix solver.4. The computer implemented method of claim 3 , further including the steps of:reducing residuals from the step of applying a full matrix solver against specified tolerances; andif the tolerances are satisfied at the time step, and for each time step during life of the subsurface reservoir, proceeding to the step of forming a record; andif the tolerances are not satisfied at the time step, returning to step (a) and repeating steps (b) through (h) for another iteration of processing at the time step.5. The computer implemented method of claim 3 , further including the steps of:reducing residuals from the step of applying a full matrix solver against specified tolerances; andif the specified tolerances are satisfied at ...

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29-06-2017 дата публикации

Methods to Determine Composite Vibration Indices of a Drilling Assembly

Номер: US20170183940A1
Принадлежит: Individual

A method to drill a borehole or wellbore through an earthen formation using a drill bit on a drillstring, comprising the steps of: selecting a frequency-domain dynamic model of a drilling assembly that describes the dynamic response of the drilling assembly to excitation at an excitation frequency for operating at a set of selected drilling parameters that include at least rotary speed and weight on bit; calculating a composite vibration index by combining calculated vibration indices for each excitation frequency with the spectral weighting factors for each of the drilling parameter partitions; displaying said composite vibration index for each of the drilling parameter partitions; selecting preferred drilling parameters based on the displayed results, and using the preferred drilling parameters to drill a borehole with the modeled drilling assembly.

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