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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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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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13-11-2017 дата публикации

Устройство для направленного бурения ствола скважины

Номер: RU0000174947U1
Автор: Владимир Григорьевич Еременко, Юрий Александрович Иконников
Принадлежит: Публичное акционерное общество специального машиностроения и металлургии "Мотовилихинские заводы"

Полезная модель относится к области бурения грунта, а именно к устройствам для изменения направления буровой скважины. Устройство для направленного бурения ствола скважины содержит невращающийся корпус (1), в котором расположены вал (В) (2) бурового долота (3) и узел отклонения вала долота, содержащий привод (4), выходное звено которого соединено последовательно с передаточным механизмом (5) и механизмом углового отклонения вала долота с клиновой парой возвратно-поступательного движения, один элемент (6) которой соединен с передаточным механизмом (5), а второй элемент (7) - с В (2). Устройство снабжено, как минимум, двумя дополнительными приводами (8) и (9) узла отклонения В (2), каждый из которых соединен последовательно с дополнительным передаточным механизмом и механизмом углового отклонения В (2). Каждый механизм углового отклонения В (2) имеет клиновую пару возвратно-поступательного движения, один элемент (10) и (11) которой соединен с соответствующим передаточным механизмом, а второй (12) и (13) - с В 2. Повышается точность пространственной ориентации вала долота, упрощается конструкция устройства и его эксплуатация. 1 з.п. ф-лы, 2 ил. Ц 1 174947 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) сх а < &(13) (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ ЕВ 708 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017113598, 19.04.2017 (24) Дата начала отсчета срока действия патента: 19.04.2017 Дата регистрации: 13.11.2017 Приоритет(ы): (22) Дата подачи заявки: 19.04.2017 (45) Опубликовано: 13.11.2017 Бюл. № 32 Адрес для переписки: 614014, г. Пермь, ул. 1905 года, 35, стр. 2404, оф. 318, ПАО "Мотовилихинские заводы", ЗАО "СКБ", патентно-лицензионное бюро (72) Автор(ы): Еременко Владимир Григорьевич (КО), Иконников Юрий Александрович (КО) (73) Патентообладатель(и): Публичное акционерное общество специального машиностроения и металлургии "Мотовилихинские заводы" (КО) (56) Список документов, цитированных в отчете о поиске: ВИ 2603148 С2, 20.11.2016. ...

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Номер записи: 1
15-02-2018 дата публикации

Фрезер стартовый

Номер: RU0000177284U1
Автор: Тимофей Евгеньевич Гресюк
Принадлежит: Общество с ограниченной ответственностью Научно производственная фирма &#34;Технология&#34;

Полезная модель относится к области бурения и капитального ремонта нефтяных и газовых скважин и может быть использована для фрезерования бокового ствола скважины. Фрезерный инструмент для прорезания окна в обсадной колонне буровой скважины включает корпус с торцевой нижней частью, лопастной конической частью, лопастной цилиндрической средней частью и муфтовой частью с присоединительной резьбой, в котором выполнен промывочный канал вдоль оси инструмента и промывочные отверстия в торцевой нижней части и лопастной конической части, причем лопасти выполнены цельнофрезерованными и покрыты износоустойчивым режуще-истирающим покрытием, а между лопастями конической средней части выполнена площадка с отверстием под срезной болт для крепления инструмента к клину-отклонителю. Торцевая нижняя часть выполнена в виде наплавленной коронки, состоящей из частиц дробленого карбида вольфрама, внедренных в матрицу из никельсодержащей латуни, усиленной по центру выступом трапециевидной формы, причем касательная к внешней поверхности лопастной конической части составляет угол 10±0,5° с горизонтальной осью фрезерного инструмента, при этом лопасти конической части плавно переходят в лопасти цилиндрической средней части, причем лопасти армированы композиционным материалом. Использование полезной модели повышает эффективность фрезерования «окна» в стволе скважины за счет предотвращения заклинивания фрезерного инструмента с повышением скорости фрезерования и износостойкости режущей части фрезерного инструмента. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 177 284 U1 (51) МПК E21B 29/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК E21B 29/06 (2017.08) (21)(22) Заявка: 2017139948, 16.11.2017 (24) Дата начала отсчета срока действия патента: 15.02.2018 Приоритет(ы): (22) Дата подачи заявки: 16.11.2017 (45) Опубликовано: 15.02.2018 Бюл. № 5 1 7 7 2 8 4 R U (54) Фрезер стартовый (57) Реферат: Полезная модель относится к области бурения и ...

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Номер записи: 2
19-01-2012 дата публикации

Steerable drilling system

Номер: US20120012396A1
Автор: Geoff Downton
Принадлежит: Individual

A steerable system comprises a fluid powered motor 10 having a rotor 16 and a stator 18 , and a bias arrangement having a plurality of bias pads 34 connected to the stator 18 so as to be rotatable therewith, the bias pads 34 being moveable to allow the application of a side load to the steerable system.

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Номер записи: 3
16-02-2012 дата публикации

System and method for drilling a deviated wellbore

Номер: US20120037428A1
Автор: Andrei Plop
Принадлежит: Schlumberger Technology Corp

A system and method for drilling a wellbore along a desired well path is disclosed. The system and method employed a bearing housing which may be connected into a bottom hole assembly to facilitate drilling of deviated wellbore sections. The bearing housing has an internal bore with an axis that can be positioned to form a non-zero angle with the central or longitudinal axis of the bearing housing. The internal bore is designed to rotatably receive a drill bit shaft such that a drill bit is oriented at a desired angle with respect to the bearing housing. Alternatively, the internal bore may be positioned in a sleeve which is received in the bearing housing.

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Номер записи: 4
08-03-2012 дата публикации

Drill Bit with Adjustable Side Force

Номер: US20120055713A1
Автор: Matthias Meister, Wolfgang E. Herberg
Принадлежит: Baker Hughes Inc

A drill bit according to one embodiment includes a center member configured to rotate at a first speed and an outer member disposed outside the center member, wherein the outer member is configured to rotate at a second speed. The drill bit also includes a first cutter disposed on the center member and a second cutter disposed on the outer member, wherein the first speed and second speeds are configured to control a resultant side force of the drill bit.

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Номер записи: 5
05-04-2012 дата публикации

Steering Mechanism with a Ring Disposed about an Outer Diameter of a Drill Bit

Номер: US20120080233A1
Автор: David R. Hall, Jonathan Marshall, Scott S. Dahlgren
Принадлежит: Individual

In one aspect of the present invention, a steering assembly for downhole directional drilling comprises a drill bit comprising a cutting portion and an outer diameter. A steering ring disposed around the outer diameter, and at least one biasing mechanism disposed intermediate the outer diameter and the steering ring. The at least one biasing mechanism is configured to move the steering ring with respect to the outer diameter.

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Номер записи: 6
10-05-2012 дата публикации

Combination whipstock and completion deflector

Номер: US20120111636A1
Автор: Aditya Shailesh Deshmukh, David Joe Steele
Принадлежит: Halliburton Energy Services Inc

Assemblies can be disposed in a subterranean bore. An assembly can include a surface that can divert a cutting tool for creating a branch wellbore and that can divert a completion component for completing the branch wellbore without requiring the assembly or part of the assembly from being removed from a parent wellbore prior to the completion component being diverted.

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Номер записи: 7
28-06-2012 дата публикации

Method and apparatus for milling a zero radius lateral window in casing

Номер: US20120160493A1
Автор: David Belew, Jack J. Kolle, Mark H. Marvin
Принадлежит: Individual

A flexible milling assembly for milling an orifice through a well casing. One embodiment includes a drive yoke, and a plurality of straight and split yoke assemblies—all linked together and to a cutter head with universal blocks that enable the components to pivot relative to each other. A string of joint tubing connected to a prime mover on the surface is used to lower the milling assembly into a well and supply the driving torque. A split shoe coupled to a guide tube is positioned within the well casing where the orifice is to be milled. The milling assembly is guided through a curved passage within the split shoe to bring the cutter head into contact with the well casing. A protector assembly can be provided to enclose and protect the milling assembly when it is tripping into and out of the well casing.

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Номер записи: 8
09-08-2012 дата публикации

Method and Device for Deploying a Cable and an Apparatus in the Ground

Номер: US20120199368A1
Автор: Rune Freyer
Принадлежит: Fishbones AS

A method and device for deploying a cable and an apparatus in a ground formation having a motherbore, wherein the method comprises positioning a non-rotating drill pipe, a cable and an apparatus in a motherbore tubular; and drilling a lateral opening relatively the motherbore by displacing the drill pipe into the formation with the cable and apparatus attached.

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Номер записи: 9
30-08-2012 дата публикации

Lateral Well Drilling Apparatus and Method

Номер: US20120217068A1
Автор: Harald Grimmer, Ingo Roders, Steffen Toscher, Volker Krueger
Принадлежит: Baker Hughes Inc

In one aspect, a drilling apparatus is provided, where the drilling apparatus includes a fluid pump disposed in a main wellbore, a lateral well in fluid communication with the fluid pump and a drilling assembly disposed in the lateral well, wherein the drilling assembly is configured to receive a fluid from the fluid pump to power the drilling assembly and to transport cuttings from the drilling assembly to the main wellbore. The drilling apparatus further includes a sealing mechanism disposed in the main wellbore, the sealing mechanism being configured to direct the cuttings in the fluid downhole of the sealing mechanism.

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Номер записи: 10
21-02-2013 дата публикации

Rotary Steerable Assembly Inhibiting Counterclockwise Whirl During Directional Drilling

Номер: US20130043076A1
Автор: Daryl Stroud, Jeff Johnson, Michael L. Larronde, Mike Spencer
Принадлежит: Precision Energy Services Inc

A bottom hole assembly avoids damaging vibrations that can develop during directional drilling with a rotary steerable system. The assembly has a drill bit, a first collar that rotates with the bit, a rotary steerable tool that controls the bit's trajectory, and a second collar that rotates with the drill string. The first collar between the bit and the tool defines a bend that deflects the bit from the first collar's axis. During operation, this bend causes portion of the assembly to engage the borehole wall to inhibit counterclockwise (CCW) bit whirl by promoting clockwise whirl in the assembly, generating friction against the borehole wall, and dampening vibrations. By inhibiting CCW bit whirl, other damaging vibrations such as CCW whirl in the drill string can also be prevented up the borehole. Alternatively, only the second collar between the tool and the drill string may define the bend, or both collars can define bends.

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Номер записи: 11
21-03-2013 дата публикации

Apparatus and Method for Transitioning a Tool Around the Radius of a Whipstock with Internal Guide Channel

Номер: US20130068480A1
Автор: James M. Savage
Принадлежит: Individual

A method for transitioning a rigid or semi-rigid tool around a whipstock having a curved internal guide channel. The apparatus and method entail the tool meeting specific proportion criteria relative to the narrowest part of the curved guide channel through which it must pass and relative to the length and width of the tool. In lateral borehole related applications, if the wider ends portions of the tool are of approximately the same diameter of the borehole, the tool can be stabilized as it travels through the guide channels and creates and transitions a lateral borehole. The disclosure is particularly suited to tools that are rotated through the curved whipstock and in certain applications offers such tools the benefit of a reduced number of segments or links and hence reduced costs and failure points. The method described herein can be used with a variety of tool types and for a variety of purposes and may increase the applicability of tools otherwise only feasible on wellbores of a larger diameter.

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Номер записи: 12
09-05-2013 дата публикации

Oil Operated Rotary Steerable System

Номер: US20130112483A1
Автор: Downton Geoffrey C., Kibsgaard Paal
Принадлежит:

A technique facilitates steering of rotary steerable systems when conducting directional drilling operations. A rotary steerable system is combined with a pressurized oil system which delivers oil to a piston actuated mechanism. The pressurized oil provides precise, long-lasting control over the orientation of the bottom hole assembly and the drill bit to facilitate directional drilling of boreholes through subterranean formations. 1. A system for drilling a borehole , comprising:a drill bit;a rotary steerable drilling system to which the drill bit is coupled in a bottom hole assembly, the rotary steerable drilling system having a piston actuated mechanism which rotates with the rotary steerable drilling system and which selectively controls at least one of the directional bias and the axial orientation of the drill bit; anda pressurized oil system connected to the piston actuated mechanism, the pressurized oil system providing pressurized oil to pistons in the piston actuated mechanism.2. The system is recited in claim 1 , wherein the rotary steerable drilling system comprises a swivel.3. The system is recited in claim 1 , wherein the rotary steerable drilling system comprises a lower stabilizer.4. The system is recited in claim 1 , wherein the pressurized oil system comprises an oil pump.5. The system is recited in claim 4 , wherein the flow of oil from the oil pump to the piston actuated mechanism is controlled by a valve system.6. The system as recited in claim 5 , wherein the oil pump is driven by an electric motor.7. The system as recited in claim 6 , wherein the electric motor receives electrical power from a mud powered alternator.8. The system as recited in claim 5 , wherein the valve system comprises a plurality of bistable actuators.9. A method of drilling a borehole claim 5 , comprising:rotating a drill bit with a rotary steerable system;adjusting the orientation of the rotary steerable system and thus the drill bit with pressurized oil supplied to the ...

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Номер записи: 13
16-05-2013 дата публикации

Window Joint for Lateral Wellbore Construction

Номер: US20130118727A1
Автор: Hepburn Neil, Steele David Joe
Принадлежит: Halliburton Energy Services, Inc.

A system for opening a window () in lateral wellbore construction. The system includes a window joint () that is operable to be interconnected within a casing string. The window joint () has a window () formed therein that is defined by at least one score line () that creates a preferentially weaken region within the window joint () enabling internal removal of the window () in a predictable manner without generating wellbore debris. A window removal tool () is operable to be run in the casing string. The window removal tool () is operably engagable with the window () such that actuation of the window removal tool () internally removes the window () from the window joint (), thereby opening the window (). 1. A window joint for lateral wellbore construction , the window joint comprising:a tubular member operable to be interconnected within a tubular string; anda window formed in the tubular member, the window defined by at least one score line that creates a preferentially weaken region within the tubular member enabling internal removal of the window in a predictable manner.2. The window joint as recited in wherein the window further comprise a preformed window wherein the at least one score line is formed prior to interconnecting the tubular member within the tubular string.3. The window joint as recited in wherein the at least one score line is formed on an interior surface of the tubular member.4. The window joint as recited in wherein the at least one score line is formed on an exterior surface of the tubular member.5. The window joint as recited in wherein the at least one score line further comprises at least one score line formed on an interior surface of the tubular member and at least one score line formed on an exterior surface of the tubular member.6. The window joint as recited in wherein the at least one score line further comprises a plurality of longitudinally extending score lines.7. The window joint as recited in wherein the at least one score line ...

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Номер записи: 14
16-05-2013 дата публикации

Rotary Steerable Push-the-Bit Drilling Apparatus with Self-Cleaning Fluid Filter

Номер: US20130118812A1
Автор: Jeffery Ronald Clausen, Jonathan Ryan Prill
Принадлежит: National Oilwell Varco LP

A steerable drilling apparatus includes a control system inside a cylindrical housing connected to a drill bit having radially-extendable pistons. A fluid-metering assembly directs a piston-actuating fluid into fluid channels leading to respective pistons. The control system controls the fluid-metering assembly to allow fluid flow to selected pistons, causing the actuated pistons to temporarily extend in the opposite direction to a desired wellbore deviation, thereby deflecting the drill bit away from the borehole centerline. An upper member in the fluid-metering assembly can be moved to stabilize, steer, and change TFA within the drill bit. The control system and drill bit are connected so as to facilitate removal to change the drill bit's steering section and cutting structure configuration or gauge simultaneously. The apparatus may incorporate a fluid filter module mounted to the control system. The pistons may incorporate auxiliary cutting elements to provide near-bit reaming capability.

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Номер записи: 15
04-07-2013 дата публикации

SYSTEM AND METHOD TO FACILITATE THE DRILLING OF A DEVIATED BOREHOLE

Номер: US20130168151A1
Автор: CROW JOSEPH M., GRIGOR CHARLES, Swadi Shantanu N.
Принадлежит: Smith International, Inc.

A system and method for facilitating the drilling of a deviated borehole. The system and method employ a flexible conveyance. A hydraulic actuation assembly is coupled to the flexible conveyance and a whipstock is releasably coupled to the hydraulic actuation assembly. The whipstock and hydraulic actuation assembly are conveyed downhole in the wellbore. The hydraulic actuation assembly provides a hydraulic fluid under pressure to anchor the whipstock. 1. A system for facilitating drilling of a deviated wellbore , comprising:a flexible line conveyance;a hydraulic actuation assembly coupled to the flexible line conveyance; anda whipstock releasably coupled to the hydraulic actuation assembly, the whipstock and hydraulic actuation assembly arranged and designed to be conveyed downhole into a wellbore, the hydraulic actuation assembly providing a hydraulic fluid under pressure to anchor the whipstock in the wellbore.2. The system of claim 1 , wherein the flexible line conveyance is a multi-conductor wireline cable that is in electrical communication with the hydraulic actuation assembly and that withdraws the hydraulic actuation assembly from the wellbore following release of the whipstock.3. The system of claim 1 , wherein the hydraulic actuation assembly comprises a pump driven by a motor to pressurize the hydraulic fluid.4. The system of claim 1 , wherein the hydraulic actuation assembly comprises a firing head and an explosive material arranged and designed to pressurize the hydraulic fluid.5. The system of claim 1 , wherein the flexible line conveyance is a slickline cable that withdraws the hydraulic actuation assembly from the wellbore following release of the whipstock.6. The system of claim 5 , wherein the hydraulic actuation assembly comprises a pump driven by a motor to pressurize the hydraulic fluid claim 5 , the motor being powered by a downhole power source.7. The system of claim 5 , wherein the hydraulic actuation assembly comprises a firing head and an ...

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Номер записи: 16
08-08-2013 дата публикации

EXTENDED WHIPSTOCK AND MILL ASSEMBLY

Номер: US20130199784A1
Автор: Alsup Shelton W., Campbell John E., Swadi Shantanu N.
Принадлежит: Smith International, Inc.

A cutting apparatus and method to facilitate milling of a casing window by improving the interaction between the mill and the casing. The cutting apparatus comprises a whipstock having a plurality of ramp sections which provide a ramp profile arranged and designed to cooperate with the cutting structure of a mill to achieve a desired loading on the mill cutting elements during milling of the casing window. The plurality of ramp sections, having specific lengths and oriented at specific angles, adjust the loading on the mill as the mill cuts through the casing during formation of the casing window. The improved whipstock maintains a more balanced loading across the cutting elements during milling operations. Additional mill cutting structures, including one or more disclosed herein, may also be selected and evaluated to further balance the cutting load during window milling. 1. A method for facilitating milling a window in a cased wellbore , the method comprising:determining a configuration of a cutting structure of a mill to cut a window in a well casing, the cutting structure of the mill having a plurality of cutting elements; andselecting a whipstock having a plurality of ramp sections, each ramp section of the plurality of ramp sections having a length and angular orientation designed to cooperate with the configuration of the cutting structure of the mill to produce a predetermined balancing of cutting load between the plurality of cutting elements during cutting of the window in the well casing.2. The method as recited in claim 1 , wherein the predetermined balancing of cutting load is achieved when each of the plurality of cutting elements has a cutting loading no greater than about 30 cubic inches of well casing cut.3. The method as recited in claim 1 , wherein the predetermined balancing of cutting load is produced when the difference between volumes of well casing cut by radially adjacent cutting elements of the plurality of cutting elements is driven ...

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Номер записи: 17
08-08-2013 дата публикации

Rotary Steerable Tool Actuator Tool Face Control

Номер: US20130199844A1
Автор: Bayliss Martin Thomas, Richards Edward Charles Langden, Wallwork Christopher
Принадлежит:

A technique facilitates controlling the direction of drilling when using a rotary steerable system to drill a borehole. The method comprises processing parameters related to operation of a rotatable collar of the rotary steerable system. The parameters are used in cooperation with characteristics of actuators to control the positioning of an actuator tool face which, in turn, controls the drilling orientation of the rotary steerable system. 1. A method for controlling a drilling direction of a rotary steerable system having a rotatable collar and a sleeve pivoted by bi-stable valve actuators to control the drilling direction , comprising:determining an angular collar speed of a rotary steerable system;establishing a transition angle interval for each bi-stable valve actuator as each bi-stable valve is switched between off and on states; andusing the angular collar speed and the transition angle of each bi-stable valve actuator to control a desired dwell angle interval for each bi-stable valve actuator.2. The method as recited in claim 1 , further comprising employing four bi-stable valve actuators positioned at 90° offsets with respect to the rotatable collar.3. The method as recited in claim 2 , wherein using comprises triggering on and off states of the four bi-stable valve actuators via latched logic with a desired angular tolerance.4. The method as recited in claim 1 , wherein determining comprises using an actuator tool face controller to process a plurality of inputs.5. The method as recited in claim 4 , wherein determining comprises processing a collar angular position estimate claim 4 , a collar angular rate estimate claim 4 , and a plurality of additional parameters.6. The method as recited in claim 1 , further comprising sensing a pivot position of the sleeve.7. A method of controlling an actuator tool face in a rotary steerable system claim 1 , comprising:inputting a demand tool face;estimating a collar angular position and a collar angular rate for ...

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Номер записи: 18
08-08-2013 дата публикации

Braking Mechanism for a Downhole Tool

Номер: US20130199853A1
Автор: Crowley Daniel Brendan, Sedgeman Robert Donald John
Принадлежит: SMART STABILIZER SYSTEMS LIMITED

This invention relates to braking mechanism for a downhole tool such as a steering tool. The braking mechanism comprises: 1. A braking mechanism for a downhole tool , the braking mechanism having:a body adapted for mounting upon the tool;at least one braking member which is movably mounted upon the body;a resilient biasing means biasing the braking member away from the body; anda damping mechanism connected to the braking member, the damping mechanism providing a damping force opposing movements of the braking member relative to the body, the damping force being dependent upon the rate of movement of the braking member.2. A braking mechanism according to in which the damping mechanism is hydraulic claim 1 , the body having a fluid conduit including a cylinder claim 1 , the braking member being connected to a drive piston which is movably located within the cylinder.3. A braking mechanism according to in which the fluid conduit includes at least one damping member which restricts the flow of fluid along the conduit.4. A braking mechanism according to in which the fluid conduit is connected to a second cylinder which accommodates a balancing piston.5. A braking mechanism according to in which the drive piston and the balancing piston are located at opposed ends of the fluid conduit claim 4 , with the damping member located therebetween.6. A braking mechanism according to in which the drive piston and the balancing piston are sealed to the fluid conduit so that they enclose a volume of hydraulic fluid therebetween.7. A braking mechanism according to in which the side of the balancing piston which does not face the drive piston is exposed to the pressure within the borehole.8. A braking mechanism according to in which the second cylinder is located adjacent to the edge of the body claim 7 , the body having at least one opening through which claim 7 , in use claim 7 , borehole fluid can enter the second cylinder.9. A braking mechanism according to in which the resilient ...

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Номер записи: 19
22-08-2013 дата публикации

System and Method for Casing Milling

Номер: US20130213641A1
Автор: Layden Reginald W., Werner Gary Joseph
Принадлежит:

A method and/or system is provided for milling an opening into a tubular positioned in a well bore using coiled tubing. Surface equipment includes a programmable controller at the surface, which is utilized for controlling an injector motor so that an encoder for monitoring movement of said coiled tubing string produces less than a predetermined maximum number of pulses for a given time interval. 1. A method for milling an opening into a tubular positioned in a well bore with coiled tubing , comprising:utilizing a string of coiled tubing;utilizing a milling tool mounted on said string of coiled tubing;utilizing an injector motor operable to control an injector for moving said string of coiled tubing into and out of said well bore;utilizing an encoder which produces pulses indicative of movement of said string of coiled tubing of coiled tubing into and out of said well bore;utilizing a tension sensor for said coiled tubing for use in determining a weight on said milling tool during milling; andutilizing a controller programmed for controlling said injector motor, said controller being operably connected to said tension sensor and said encoder, said controller being programmed to control said injector motor so that said encoder produces less than a predetermined maximum number of pulses for a given time interval.2. The method of claim 1 , wherein said controller is programmed to control said injector motor to maintain said selected weight unless said encoder produces more than said predetermined maximum number of pulses for said given time period whereupon said controller operates said injector motor to limit movement of said coiled tubing into said well bore.3. The method of claim 2 , wherein said controller is programmed to operate said injector motor to stop movement of said coiled tubing for a remainder of said given time interval if said predetermined number of pulses is exceeded.4. The method of claim 1 , wherein said controller is operable for calculating a ...

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Номер записи: 20
22-08-2013 дата публикации

CEMENTING WHIPSTOCK APPARATUS AND METHODS

Номер: US20130213654A1
Автор: Campbell John E., Dewey Charles H., Gregurek Philip M., Swadi Shantanu N.
Принадлежит: Smith International, Inc.

A system and method facilitate sidetracking by eliminating one or more trips downhole. A sidetracking system includes a whipstock assembly and a stinger assembly. The stinger assembly has a stinger which extends at least partially through the whipstock assembly. The stinger is coupled to a sub of the sidetracking system by a releasable latch mechanism, such as a shear pin or collet. 1. A sidetracking system for forming a deviated wellbore , comprising: a stinger assembly having a stinger extending at least partially through the whipstock assembly, the stinger being releasably coupled to the whipstock assembly by a latch mechanism; and', 'a ball seat carrier having an extended portion releasably coupled within an interior of the latch mechanism., 'a whipstock assembly having a whipstock;'}2. The sidetracking system of claim 1 , wherein the latch mechanism is arranged and designed to be releasable only when the ball seat carrier is not present in the interior of the latch mechanism.3. The sidetracking system of claim 1 , wherein the ball seat carrier is coupled to the interior of the latch mechanism by a shear member.4. The sidetracking system of claim 1 , further comprising an anchor assembly coupled to the whipstock assembly.5. The sidetracking system of claim 4 , wherein the anchor assembly is arranged and designed to anchor the whipstock assembly in an open hole.6. The sidetracking system of claim 1 , wherein the latch mechanism is a collet.7. The sidetracking system of claim 1 , further comprising a debris screen positioned downhole of the ball seat carrier and configured to catch the ball seat carrier when released from the interior of the latch mechanism.8. The sidetracking system of claim 1 , wherein the ball seat carrier is released after a ball launched from an uphole location seats on a ball seat disposed in the ball seat carrier.9. A method of drilling a deviated wellbore claim 1 , comprising:deploying a sidetracking system downhole in a wellbore; the ...

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Номер записи: 21
22-08-2013 дата публикации

DIRECTIONAL DRILLING SYSTEMS

Номер: US20130213713A1
Автор: KANJI Karim N., SMITH Raymond C.
Принадлежит: Halliburton Energy Services, Inc.

A directional drilling system for use in drilling a wellbore can include a bit deflection assembly with a bit axis deflection mechanism which applies a deflecting force to a shaft connected to a drill bit. The deflecting force may deflect the shaft, without being reacted between the deflection mechanism and the drill bit. The deflecting force may deflect the shaft between the drill bit and a radial bearing which maintains the shaft centered in the bit deflection assembly. The deflection mechanism may both angularly deflect and laterally displace the bit axis in the deflection mechanism. 1. A directional drilling system for use in drilling a wellbore , the system comprising:a bit deflection assembly including a bit axis deflection mechanism which applies a deflecting force to a shaft connected to a drill bit, andwherein the deflecting force deflects the shaft without being reacted between the deflection mechanism and the drill bit.2. The system of claim 1 , wherein the deflection mechanism is interconnected between the drill bit and an articulation which permits deflection of the shaft.3. The system of claim 2 , wherein the articulation comprises a constant velocity joint.4. The system of claim 2 , wherein the articulation comprises a splined ball joint.5. The system of claim 2 , wherein the articulation comprises a flexible torsion rod.6. The system of claim 1 , wherein the deflection mechanism rotates the bit axis about an inclined axis.7. The system of claim 6 , wherein the inclined axis is formed in an inclined cylinder which is rotated about the shaft.8. The system of claim 1 , wherein the deflection mechanism laterally displaces the bit axis.9. The system of claim 1 , wherein the deflection mechanism angularly deflects the bit axis.10. The system of claim 1 , wherein the deflection mechanism angularly deflects and laterally displaces the bit axis.11. The system of claim 1 , wherein the deflection mechanism deflects the shaft in a succession of separate steps.12 ...

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Номер записи: 22
22-08-2013 дата публикации

APPARATUS AND METHOD FOR LATERAL WELL DRILLING

Номер: US20130213716A1
Автор: Perry Kenny P., Savage James M.
Принадлежит:

An apparatus and method for penetrating earth strata surrounding a wellbore including a nozzle assembly, a flexible tubing connected to the nozzle assembly, and a means to position the nozzle assembly downhole in a substantially horizontal direction into earthen strata, such that the nozzle assembly is connected to one end of the flexible tubing. Embodiments can provide horizontal jetting into the earth's strata from both cased and uncased wells utilizing a rotating, swirling, pulsing or cavitating nozzles which can keep a relatively cuttings free downhole environment. 1. An apparatus for cutting into an earthen formation , comprising:a nozzle assembly having a main body that substantially circumscribes a rotatable shaft to which is attached a nozzle head;wherein one end of the nozzle assembly is connected to one end of a flexible tubing and the other end of the flexible tubing is coupled to a pumping unit capable of pumping gases, foams, fluids, or a combination thereof through the flexible tubing and out the nozzle assembly; anda means to position the nozzle assembly into earthen strata in a substantially horizontal direction;wherein a fluid bearing positioned between the nozzle body and the rotatable shaft is created in the presence of flow through the nozzle assembly.2. The apparatus of claim 1 , wherein the rotatable shaft is in fluid communication with the flexible tubing so as to allow the flexible tubing to be in fluid communication with the attached nozzle head.3. The apparatus of wherein a portion of the rotatable shaft extends out of the main body and is attached to the nozzle head.4. The apparatus of claim 1 , wherein the rotatable shaft is in the form of a cone and has a hole through the center along its longitudinal axis.5. The apparatus of claim 1 , wherein the nozzle head comprises at least two orifices.6. The apparatus of claim 5 , wherein at least one orifice is skewed with respect to the axis of rotation of the nozzle head so as to provide a ...

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Номер записи: 23
05-09-2013 дата публикации

NAVIGATION SYSTEM

Номер: US20130228375A1
Автор: Hallundbaek Jørgen
Принадлежит: WELLTEC A/S

The present invention relates to a navigation system for navigating a drill head out of or in collision with a casing in a first borehole. The system comprises a drill head drilling a second borehole; a drill string made of several tubulars mounted into one tubular string by means of a connection means, the drill head being mounted onto one end of the drill string; and a plurality of logging units arranged with one logging unit in or in relation to each connection means. Each logging unit comprises a data transmitter and a data receiver for sending and receiving data between the logging units; and a detector, at least one logging unit comprising an emitter. Furthermore, the invention relates to a navigation method using the navigation system. 11234. A navigation system () for navigating a drill head () out of or into collision with a casing () in a first borehole () , comprising:{'b': '5', 'a drill head drilling a second borehole (),'}{'b': 6', '7', '8, 'a drill string () made of several tubulars () mounted into one tubular string by means of a connection means (), the drill head being mounted onto one end of the drill string,'}{'b': '9', 'a plurality of logging units () arranged with one logging unit in each connection means,'} [{'b': 10', '11, 'a data transmitter () and a data receiver () for sending and receiving data between the logging units, and'}, {'b': '13', 'a detector (),'}], 'each logging unit comprising{'b': '12', 'at least one logging unit comprising an emitter (),'}wherein the emitter of one logging unit emits a signal which is reflected by the casing and detected by the detector of at least two logging units so that a position and/or an extension direction of the casing can be found by means of trigonometry.2141516. A navigation system according to claim 1 , further comprising a communication pack () arranged in one of the connection means claim 1 , dividing the drill string into a top part () and a bottom part () claim 1 , the drill head being ...

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Номер записи: 24
05-09-2013 дата публикации

CONTINUOUS ROTARY DRILLING SYSTEM AND METHOD OF USE

Номер: US20130228379A1
Автор: Zhou Shaohua
Принадлежит: Saudi Arabian Oil Company

A drilling system has a drill string that is made up of tubular segments of coiled tubing joined together by connectors. The connectors can be selectively changed between locked and unlocked configurations. When in the unlocked configuration adjacent tubular segments rotate with respect to one another, and when in the locked configuration the tubular segments are rotationally affixed. The connectors include clutch members coupled to each tubular segment, that axially slide into a slot formed in an adjacent tubular segment to rotationally lock the adjacent segments. A Kelly bushing and rotary table rotate the drill string; and an injector head is used to insert the drill string through the Kelly bushing and rotary table and into a wellbore. While the drill string is inserted through the bushing and table, the connectors are set into the locked configuration so that all tubular segments from the rotary table downward are rotationally affixed. 1. A method of forming a wellbore in a subterranean formation comprising:a. providing a tubular string comprising tubular segments, and connectors axially adjoining adjacent segments that are selectively changing between an unlocked configuration where the adjacent segments are rotatable with respect to one another and a locked configuration where the adjacent segments are rotationally affixed to one another;b. changing connectors from the unlocked configuration to the locked configuration to form a substantially rotationally cohesive portion of the tubular string;c. inserting the substantially rotationally cohesive portion of the tubular string in the wellbore; andd. rotating the substantially rotationally cohesive portion of the tubular string, so that when a drill bit is provided on an end of the tubular string, cuttings are removed from the subterranean formation to create the wellbore.2. The method of claim 1 , wherein step (d) comprises engaging the tubular string with a rotary drive system disposed above an opening of the ...

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Номер записи: 25
19-09-2013 дата публикации

CONTROLLABLE DEFLECTION HOUSING, DOWNHOLE STEERING ASSEMBLY AND METHOD OF USE

Номер: US20130240268A1
Автор: Crowley Daniel Brendan, Walker Colin
Принадлежит: SMART STABILIZER SYSTEMS LIMITED

This invention relates to a controllable deflection tool. The controllable deflection tool is likely to have its greatest utility as part of a downhole assembly to steer a drill bit during drilling for oil and gas. There is provided a controllable deflection tool having a first end and a second end, the tool having: a conduit for a working fluid; a rotary element adapted for rotation within the tool; a deflection member; a vane motor configured to rotate the deflection member relative to the rotary element; and a valve for controlling the flow of working fluid to the vane motor. There is also provided a downhole steering assembly and a method of steering a downhole drilling assembly incorporating the controllable deflection tool. 1. A controllable deflection tool having a first end and a second end , the tool having:a conduit for a working fluid;a rotary element adapted for rotation within the tool;a deflection member;a vane motor configured to rotate the deflection member relative to the rotary element; anda valve for controlling the flow of working fluid to the vane motor.2. A controllable deflection tool according to in which the deflection member is a bent housing.3. A controllable deflection tool according to in which the rotary element is an annular sleeve.4. A controllable deflection tool according to in which the annular sleeve surrounds a part of a rotatable shaft.5. A controllable deflection tool according to in which there is a gap between the sleeve and the shaft claim 4 , the gap providing a part of the conduit.6. A controllable deflection tool according to in which the vane motor comprises an eccentric housing within which is located a body carrying at least three vanes claim 1 , the body being connected to the rotary element to rotate with the rotary element claim 1 , the body being rotatable relative to the eccentric housing claim 1 , the vanes being movably mounted upon the body so that they remain in contact with the eccentric housing during ...

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Номер записи: 26
03-10-2013 дата публикации

Casing Window Assembly

Номер: US20130255968A1
Автор: Steele David Joe
Принадлежит: Halliburton Energy Services, Inc.

A casing window assembly and methods for installing the casing window assembly. 1. A casing window assembly , comprising:a tubular casing sleeve having an inside diameter, an outside diameter and an opening between the inside diameter and the outside diameter forming a casing window, the inside diameter including a recessed wall profile for receipt of a portion of an expandable wall and a recess for receipt of a portion of a securing element, wherein an end of the recessed wall profile includes a shoulder; andan inner sleeve releasably secured within the casing sleeve by the expandable wall or the securing element and having an inside diameter, an outside diameter and a wall between the inside diameter and the outside diameter, a portion of the wall forming the expandable wall and another portion of the wall including a portion of the securing element.2. (canceled)3. The casing window assembly of claim 1 , wherein the inside diameter of the inner sleeve includes a recessed wall portion with an opening for receipt of the portion of the securing element.4. The casing window assembly of claim 3 , wherein the recessed wall portion of the inner sleeve is releasably secured to another inner sleeve by a shear element claim 3 , the another inner sleeve including an outside diameter with a recess for receipt of a portion of the securing element.5. The casing window assembly of claim 1 , wherein the outside diameter of the inner sleeve includes a circumferential recess above the casing window for receipt of a seal and another circumferential recess below the casing window for receipt of another seal.6. The casing window assembly of claim 1 , wherein the another portion of the wall includes another securing element claim 1 , the securing element positioned above the casing window and the another securing element positioned below the casing window.7. The casing window assembly of claim 1 , wherein the recessed wall profile of the casing sleeve and the expandable wall are ...

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Номер записи: 27
17-10-2013 дата публикации

METHODS AND SYSTEMS FOR DRILLING

Номер: US20130270005A1
Автор: EDBURY David Alston, GUERRERO Jose Victor, MACDONALD Duncan Charles, ROGERS James Bryon, SITTON Donald Ray
Принадлежит:

A method of controlling a direction of drilling of the drill string used to form an opening in a subsurface formation, comprises varying a speed of the drill string during rotational drilling such that the drill string is at a first speed during a first portion of the rotational cycle and at a second speed during a second portion of the rotational cycle wherein the first speed is higher than the second speed, and wherein operating at the second speed in the second portion of the rotational cycle causes the drill string to change the direction of drilling. 1. A method of controlling a direction of drilling of the drill string used to form an opening in a subsurface formation , comprising:varying a speed of the drill string during rotational drilling such that the drill string is at a first speed during a first portion of the rotational cycle and at a second speed during a second portion of the rotational cycle wherein the first speed is higher than the second speed, and wherein operating at the second speed in the second portion of the rotational cycle causes the drill string to change the direction of drilling.2. The method of wherein the second portion of the rotational cycle is the portion of the rotational cycle in which a toolface of the drill string faces a desired direction for the drill string to proceed.3. The method of wherein varying the speed of the drill string comprises making a course correction.4. The method of wherein the course correction is made following a straight ahead lateral.5. The method of wherein varying the speed of the drill string comprises automatically determining a rotation speed for at least one portion of the rotational cycle.6. The method of wherein varying the speed of the drill string comprises automatically determining a sweep angle for at least one portion of the rotational cycle.7. The method of claim 1 , further comprising:establishing at desired turn rate for the drill string; andautomatically determining, based on the ...

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Номер записи: 28
24-10-2013 дата публикации

Milling Assembly

Номер: US20130277040A1
Автор: Steele David Joe
Принадлежит:

A milling assembly and methods for milling an opening for a lateral wellbore in a section of casing or in a cement liner. 1. A milling assembly , comprising:a tubular body with an opening at an upper end and another opening at a lower end, the lower end having an inside diameter and an outside diameter; anda cutting surface on the lower end extending from the inside diameter up to, but not including, the outside diameter.2. The milling assembly of claim 1 , further comprising a filter positioned within the tubular body between a retaining element and the opening at the upper end.3. The milling assembly of claim 2 , further comprising another retractable retaining element positioned within the tubular body between the retaining element and the filter.4. The milling assembly of claim 1 , further comprising:a side opening in the tubular body between the opening at the upper end and the another opening at the lower end; andanother side opening in the tubular body between the side opening and another opening at the lower end or the opening at the upper end.5. The milling assembly of claim 3 , wherein the retaining element and the other retaining element are closed and extend into an annulus of the tubular body when there is no circulation of fluid through the annulus.6. The milling assembly of claim 5 , wherein the retaining element and the other retaining element are open and substantially parallel to an axis of the tubular body when there is circulation of fluid through the annulus.7. The milling assembly of claim 1 , further comprising another cutting surface on the inside diameter of the lower end.8. The milling assembly of claim 1 , further comprising a whipstock positioned to engage the cutting surface and redirect the cutting surface toward an adjacent section of casing.9. The milling assembly of claim 8 , wherein the whipstock is substantially solid.10. A milling assembly claim 8 , comprising:a tubular body with an opening at an upper end and another opening at a ...

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Номер записи: 29
31-10-2013 дата публикации

Wellbore Casing Section with Moveable Portion for Providing a Casing Exit

Номер: US20130284458A1
Автор: Dancer William Wallace, Donovan Stacey Blaine
Принадлежит: Halliburton Energy Services, Inc.

Disclosed are systems and methods for providing a casing exit. One method includes introducing into a wellbore a casing section having an outer sleeve and an inner sleeve rotatably received within the outer sleeve, the outer sleeve defining an outer window and the inner sleeve defining an inner window rotationally alignable with the outer window, wherein the inner sleeve defines a first alignment portion engageable to rotate the inner sleeve, advancing the casing section to a wellbore location with the inner window rotationally misaligned with the outer window, extending a deflector tool within the casing section such that a second alignment portion provided on the deflector tool engages the first alignment portion, and rotating the deflector tool such that the inner sleeve rotates with respect to the outer sleeve and moves the casing section into an open configuration where the inner window is rotationally aligned with the outer window. 1. A method , comprising:introducing into a wellbore a casing section having an outer sleeve and an inner sleeve rotatably received within the outer sleeve, the outer sleeve defining an outer window that opens into the wellbore and the inner sleeve defining an inner window rotationally alignable with the outer window, wherein the inner sleeve defines a first alignment portion engageable to rotate the inner sleeve with respect to the outer sleeve;advancing the casing section to a wellbore location with the casing section in a closed configuration where the inner window is rotationally misaligned with the outer window such that the inner sleeve occludes the outer window;securing the casing section at the wellbore location;extending a deflector tool within the casing section such that a second alignment portion provided on the deflector tool engages the first alignment portion; androtating the deflector tool such that the inner sleeve rotates with respect to the outer sleeve and moves the casing section into an open configuration where ...

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Номер записи: 30
31-10-2013 дата публикации

Mechanism For Providing Controllable Angular Orientation While Transmitting Torsional Load

Номер: US20130284516A1
Автор: Marchand Nicholas Ryan, Prill Jonathan Ryan
Принадлежит:

A mechanism for adjusting the relative angular orientation between two coaxial components includes a housing, a mandrel disposed in the housing, a lower ratchet member disposed around the mandrel, wherein a lower engagement interface between the lower ratchet member and the mandrel restricts relative rotation between the lower ratchet member and the mandrel, an upper ratchet member disposed around the mandrel, wherein an upper engagement interface between the upper ratchet member and the mandrel restricts relative rotation between the upper ratchet member and the mandrel, and a central sleeve disposed around the mandrel, wherein an outer engagement interface between the central sleeve and the housing restricts relative rotation between the central sleeve and the housing, wherein the central sleeve has an upper position configured to transmit torque between the upper ratchet member and the housing and a lower position configured to transfer torque between the lower ratchet member and housing. 115.-. (canceled)16. A mechanism for adjusting the relative angular orientation between two coaxial components , said mechanism comprising:a housing;a mandrel disposed in the housing;a lower ratchet member disposed around the mandrel, wherein a lower engagement interface between the lower ratchet member and the mandrel restricts relative rotation between the lower ratchet member and the mandrel;an upper ratchet member disposed around the mandrel, wherein an upper engagement interface between the upper ratchet member and the mandrel restricts relative rotation between the upper ratchet member and the mandrel; anda central sleeve disposed around the mandrel, wherein an outer engagement interface between the central sleeve and the housing restricts relative rotation between the central sleeve and the housing;wherein the central sleeve has an upper position configured to transmit torque between the upper ratchet member and the housing and a lower position configured to transfer ...

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Номер записи: 31
14-11-2013 дата публикации

Wellbore anchoring system

Номер: US20130299160A1
Автор: Charles Lott
Принадлежит: COBRA TOOL Inc

A hydraulic wellbore anchoring system for use with whipstocks or other tools in either cased or open hole wellbores. The anchoring system includes an upper slip system and a lower slip system. The anchor system may be set using hydraulic pressure and withdrawn by a predetermined upward force. While the slips of the upper and lower slip systems may be set substantially simultaneously, the anchoring system enables sequential disengagement of the slips to reduce the force required for withdrawal.

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Номер записи: 32
14-11-2013 дата публикации

Steerable System

Номер: US20130299246A1
Автор: Shepherd Mike
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

A steerable system comprises a first rotatable housing (), a second rotatable housing () connected to the first rotatable housing () by an adjustable joint (), a cam member () held against rotation, in use, and cam follower means cooperable with the cam member () and moveable to drive the second rotatable housing () for movement relative to the first rotatable housing () about the adjustable joint (). 1. An apparatus , comprising:a motor carried by to drill string within a borehole extending into a subterranean formation;a first housing operable to rotate m response to rotation of the motors;a second housing operable to rotate in response to rotation of the first housings;a bit operable to rotate in response to rotation of the second housing;as joint coupled between the first and second housings and operable to orient the bit relative to the motor; anda sleeve surrounding part of the first housing and rotationally fixed relative to the borehole during rotation a the first housing.2. The apparatus of wherein the first housing is coupled to the sleeve by bearings permitting rotation of the first housing relative to the sleeve.3. The apparatus of further comprising an internal chamber defined by the sleeve and the first housing claim 2 , wherein the bearings fluidly isolate the internal chamber from the annulus defined between the apparatus and the wall of the borehole.4. The apparatus of further comprising:a cam member positioned in the internal chamber;linear actuators coupled to the sleeve and operable to adjust an orientation of the cam member relative to the sleeve.5. The apparatus of wherein the cam member comprises a swash plate.6. The apparatus of wherein the cam member cannot rotate relative to the sleeve.7. The apparatus of further comprising a spherical bearing coupled between the cam member and the first housing.8. The apparatus of wherein the linear actuators are electrically claim 4 , electromagnetically claim 4 , or hydraulically operable.9. The ...

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Номер записи: 33
05-12-2013 дата публикации

WEDGE DEFLECTING DEVICE FOR SIDETRACKING

Номер: US20130319653A1
Автор: AKHMADISHIN Farit Foatovich, IBRAGIMOV Nail Gabdulbarievich, ISMAGILOV Marat Azatovich, MUKHAMETSHIN Almaz Adgamovich, ZALYATOV Marat Marsovich
Принадлежит: OTKRYTOE AKTSIONERNOE OBSCHESTVO "TATNEFT" IM. V.D.SHASHINA

A wedge deflecting device useful in drilling and workover operations on oil and gas wells. The device includes a cutting tool connected to the upper portion of the wedge by means of the shear element provided with an external circular groove, located below the wedge deflecting surface, and with a transverse slot in its upper part, the cutting tool having a longitudinal cylinder and a downwards spring-biased piston, inserted into the cylinder; above lower seal elements and below the spring the piston has a wedge nose which corresponds to a transverse slot of the shear element. Below the piston, the cylinder communicates with the drill string and the supply tube, and above-the-piston space communicates with the borehole interior. The cutting tool is provided with a radial inward spring-biased locking element, arranged to be able to fix the piston in its top position, where the piston is located above the shear element. 1a deflecting wedge with a hydraulic fixing mechanism, with a sub located therebetween;a movable joint, connecting the sub and the wedge;a deflecting wedge fixing unit, installed in the sub and comprising a fixing element and a piston-rod assembly, located in the hydraulic cylinder, communicating with the fixing unit cavity, besides, the upper part of the rod is arranged so that it can interact with the lower portion of the wedge from the side of its deflecting surface;a cutting tool, run-in on the drillstring and connected to the upper portion of the wedge by means of the shear element; a fluid supply tube, communicating the drillstring internal space and the cutting tool cavity with the fixing unit cavity, furthermore, the lower portion of the wedge from its deflecting surface side is arranged as a downward wedge nose with a bevel plane, directed oppositely to the wedge deflecting surface;herewith, the upper part of the rod is made in form of a side cut, interacting with a wedge bevel plane, with the fixing element positioned inbetween;whereinthe ...

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Номер записи: 34
05-12-2013 дата публикации

DRILLING SYSTEM, BIASING MECHANISM AND METHOD FOR DIRECTIONALLY DRILLING A BOREHOLE

Номер: US20130319764A1
Автор: Schaaf Stuart, Wernig Marcus D.
Принадлежит: TELLUS OILFIELD, INC.

A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial bearing assembly, and a toolface controller, whereby the angular relationship of a drill bit and its toolface angle may be actively managed. 1. A biasing mechanism comprising:a bearing section, including a housing having a lower end and a longitudinal axis, including a lower bearing assembly and an upper radial bearing assembly within the housing, the housing;an offset shaft, having a longitudinal axis, an upper end, and a lower end, independently rotatable within the housing, the offset shaft having a first portion, including the lower end of the offset shaft, extending outwardly from the lower end of the bearing section housing, a second portion disposed within the bearing section housing associated with the lower bearing assembly, and a third portion disposed within the bearing section housing associated with the upper radial bearing assembly; anda biasing assembly associated with the bearing section to bias the offset shaft to be angularly displaced to permit directional orientation of a downhole assembly, the biasing assembly including: a pivot having a mid-point, associated with the lower bearing assembly of the bearing section; and an offset mechanism associated with the upper radial bearing assembly of the bearing section, which can selectively vary an angular relationship between the longitudinal axes of the housing and the offset shaft.2. The biasing mechanism of claim 1 , wherein the housing is non-sealed to permit a drilling fluid to lubricate the lower bearing assembly and the upper radial bearing assembly.3. The biasing mechanism of claim 1 , wherein the lower end of the offset shaft is disposed a distance from the mid-point of the pivot which is less than 36 inches.4. The biasing mechanism of claim 1 , wherein the pivot of the lower bearing assembly is a ...

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Номер записи: 35
12-12-2013 дата публикации

LATERAL WELLBORE COMPLETION APPARATUS AND METHOD

Номер: US20130327572A1
Автор: Algeroy John, De Oliveira Thales, Rayne Lance M., Rea Michael William, Sponchia Barton
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

A lateral wellbore completion apparatus may include a flow-through deflector having a deflector face and a junction string that includes a junction block cooperative to mate with the deflector face, a downhole device, and an inductive coupler electrically connected to the downhole device. A method may include anchoring the deflector in a main bore, making-up at the drilling surface a junction string that includes a junction block, a completion string section having a downhole device, and a secondary inductive coupler electrically connected to the downhole device, running the junction string into the main bore, deflecting the completion string section into the lateral bore, and landing the junction block on the deflector face thereby communicatively coupling the secondary and primary inductive couplers. 1. A lateral wellbore completion apparatus , comprising:a flow-through deflector having a deflector face; anda junction string comprising an inductive coupler electrically connected to a downhole device and a junction block positioned between the inductive coupler and the downhole device, the junction block comprising a bore and a low-side having a window to the bore, wherein the low-side is cooperative to mate with the deflector face.2. The apparatus of claim 1 , wherein the inductive coupler is electrically connected to the downhole device by a conductor.3. The apparatus of claim 1 , wherein:the junction block comprises a groove formed on a high-side; andthe inductive coupler is electrically connected to the downhole device by a conductor, the conductor positioned in the groove.4. The apparatus of claim 1 , further comprising a swivel located between the junction block and the downhole device.5. The apparatus of claim 1 , wherein the junction string comprises an intervention profile located on an opposite side of the junction block from the downhole tool.6. The apparatus of claim 1 , wherein the downhole device is located in a lateral completion string section of ...

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Номер записи: 36
19-12-2013 дата публикации

MAGNETOSTRICTIVE MOTOR FOR A BOREHOLE ASSEMBLY

Номер: US20130333947A1
Автор: Hay Richard Thomas
Принадлежит:

A motor includes: a rotor including an undulated surface; a rod disposed about the rotor; and a coil disposed about the rod to induce shape changes in the rod, which in turn impart forces to the undulated surface to rotate the rotor. 1. A motor , comprising:a rotor comprising an undulated surface;a rod disposed about the rotor; anda coil disposed about the rod to induce shape changes in the rod, which in turn impart forces to the undulated surface to rotate the rotor.2. The motor of claim 1 , wherein the undulated surface comprises a symmetrical pattern.3. The motor of claim 1 , wherein the undulated surface comprises a skewed pattern.4. The motor of claim 1 , wherein the forces rotate the rotor in a predetermined direction.5. The motor of claim 1 , wherein the shape changes impart forces to the undulated surface to rotate the rotor in a first direction with a plurality of phases.6. The motor of claim 1 , wherein the shape changes impart forces to the undulated surface to selectively rotate the rotor in one of a first direction and a second direction.7. The motor of claim 1 , wherein the rotor claim 1 , the rod claim 1 , and the coil and the rod assembly are usable in a wellbore.8. A bottom hole assembly claim 1 , comprising:a housing and a shaft disposed therein;a rotor coupled to the shaft and comprising an undulated surface;a magnetostrictive rod disposed in a rod housing about the undulated surface, the magnetostrictive rod having an end disposed adjacent to the undulated surface; anda winding arrangement disposed at least partially about the magnetostrictive rod to induce a series of shape changes in the magnetostrictive rod, wherein the series of shape changes imparts forces to the undulated surface.9. The bottom hole assembly of claim 8 , wherein the shaft is drivingly coupled to a drill bit claim 8 , and the rotor rotates the drill bit.10. The bottom hole assembly of claim 8 , further comprising:an adjustable portion of the housing, wherein the rotor is ...

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Номер записи: 37
02-01-2014 дата публикации

Method for Hydrocarbon Well Completion

Номер: US20140000965A1
Автор: Dutel Lewis J.
Принадлежит: M-I, LLC

A method of completing a hydrocarbon lateral well in a target shale formation. The method uses a data log generated from an optical flow cell assembly to identify areas in the lateral well of high free gas porosity. By evaluating such data, an operator can group “like” rock, determine stage length and variation in stage length, and determine perforation cluster spacing and location. The flow cell assembly can also be used in a completion program to assist in the steering of a lateral well being drilled below the target formation. 19.-. (canceled)10. A method comprising:generating a data log from an optical flow cell assembly within a gas flow line of a rig drilling a lateral well, the gas flow line being in fluid communication with a return flow line of the lateral well, the data log showing areas of the lateral well exhibiting high free gas porosity.11. The method of claim 10 , wherein the optical flow cell assembly comprises:an optical probe disposed within an internal bore of the optical flow cell, the optical probe detecting raw point flow velocity data of gas in the gas flow line.12. The method of further comprising:filtering the raw point flow velocity data to reject errant velocity data to obtain filtered raw point flow velocity data;correcting the filtered raw point flow velocity data to obtain a bulk velocity data; andcalculating a corrected flow rate for the gas in the gas flow line based on the bulk velocity data and an internal diameter of the gas flow line.13. The method of further comprising:utilizing the corrected flow rate to determine an amount of gas in the return flow line.14. The method of claim 12 , wherein the optical flow cell assembly further comprises:a sensor array to receive temperature and pressure measurements, the corrected flow rate based on at least one of the temperature and pressure measurements.15. The method of claim 12 , wherein the optical flow cell assembly is communicatively coupled to a computer for filtering the raw point ...

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Номер записи: 38
09-01-2014 дата публикации

DOWNHOLE DRILLING FORCE ASSEMBLY AND METHOD OF USING SAME

Номер: US20140008127A1
Автор: Eddison Alan Martyn, Heary Ian, Plessis Guillaume, Tulloch Rory McCrae, Young Rick
Принадлежит: NOV DOWNHOLE EURASIA LTD.

A drilling assembly, drilling system and method is provided. The drilling system includes a drilling rig with a drill string deployable therefrom and drivable thereby. The drill string has a bottom hole assembly with a drill bit at a lower end thereof advanceable into a subterranean formation to form a wellbore. The drilling assembly includes at least one mandrel operatively connectable to the drill string, at least one sleeve positionable about the mandrel (the sleeve having an offset stabilizer on an outer surface thereof selectively positionable in contact with a wall of the wellbore), and an orienter with a receptacle on an interior of the sleeve and a socket on an exterior of the mandrel. The socket is interlockingly engageable with the receptacle whereby the sleeve is orientable about the drill string. The one mandrel and the sleeve have a mass offset from the drill string whereby rotation of the drill string is affected during drilling. 1. A drilling assembly of a drilling system comprising a drilling rig with a drill string deployable therefrom and drivable thereby , the drill string having a bottom hole assembly with a drill bit at a lower end thereof advanceable into a subterranean formation to form a wellbore , the drilling assembly comprising:at least one mandrel operatively connectable to the drill string;at least one sleeve positionable about the at least one mandrel, the at least one sleeve having an offset stabilizer on an outer surface thereof selectively positionable in contact with a wall of the wellbore; andan orienter comprising a receptacle on an interior of the at least one sleeve and a socket on an exterior of the at least one mandrel, the socket interlockingly engageable with the receptacle whereby the at least one sleeve is orientable about the drill string;wherein the at least one mandrel and the at least one sleeve have a mass offset from the drill string whereby rotation of the drill string is affected during drilling.2. The drilling ...

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Номер записи: 39
09-01-2014 дата публикации

Wellbore Casing Section with Moveable Portion for Providing a Casing Exit

Номер: US20140008130A1
Автор: Dancer William Wallace, Donovan Stacey Blaine
Принадлежит: Halliburton Energy Services, Inc.

Systems and methods for providing a casing exit include a casing section having a generally cylindrical outer sleeve including a proximal end and a distal end. The outer sleeve may define an outer window extending between the proximal end and the distal end. A generally cylindrical inner sleeve may be received within the outer sleeve and may define an inner window. The inner sleeve may be moveable between a first position in which the inner window is misaligned with the outer window and the inner sleeve substantially closes the outer window, and a second position in which the inner window is aligned with the outer window. A deflector tool may be configured to engage the inner sleeve and move the inner sleeve from the first position to the second position 1. A casing section for positioning in a wellbore at a location where it is desired to form a diverging lateral borehole , the casing section comprising:a generally cylindrical outer sleeve including a proximal end and a distal end, the outer sleeve defining an outer window extending between the proximal end and the distal end; anda generally cylindrical inner sleeve received within the outer sleeve and defining an inner window, the inner sleeve being moveable between a first position in which the inner window is misaligned with the outer window and the inner sleeve substantially closes the outer window, and a second position in which the inner window is aligned with the outer window, wherein the inner sleeve includes an alignment portion a cam surface extending in a proximal and radial direction, the alignment portion being engageable to move the inner sleeve with respect to the outer sleeve.2. The casing section of claim 1 , wherein the inner sleeve is rotatable with respect to the outer sleeve from the first position to the second position.3. (canceled)4. The casing section of claim 1 , wherein the alignment portion includes a slot.5. (canceled)6. The casing section of claim 1 , wherein the outer sleeve includes ...

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Номер записи: 40
30-01-2014 дата публикации

High Load Universal Joint for Downhole Rotary Steerable Drilling Tool

Номер: US20140027185A1
Автор: Keery Iain, Lewis Steven, MENGER Christian
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

A technique facilitates downhole drilling applications by providing a universal joint. The universal joint has a high load carrying capability presented in a compact and simple configuration. The high load carrying capability is achieved by techniques employing unique load transfer mechanisms. For example, higher load capability may be provided by a load sharing principal in which torque loads are jointly transmitted through universal joint pins and the side faces of a universal joint cross. The higher load capability also may be achieved by transferring loads through a monolithic cross having integral pins and a split yoke/clevis assembly. In another embodiment, higher load capability results from using universal joint pins inserted from the inside of the universal joint and screwed outwardly until full engagement with the joint yokes is achieved. Each of the universal joint embodiments also may be designed to enable pressure-sealed flow of drilling mud through the joint. 1. A system for drilling a borehole , comprising: a main body portion having a main body yoke with internal surfaces;', 'a bit shaft portion having a bit shaft yoke with internal surfaces; and', 'a centerpiece coupling the main body portion to the bit shaft portion, the centerpiece having side faces which correspond with the internal surfaces of the main body portion and the bit shaft portion, the side faces being shaped to jointly transfer torque loads over a plurality of the side surfaces., 'a universal joint coupled into a drill string, the universal joint comprising2. The system as recited in claim 1 , wherein the side faces comprise four generally flat side faces.3. The system as recited in claim 1 , wherein the universal joint comprises an internal passage to conduct flowing drilling mud.4. The system as recited in claim 1 , wherein the universal joint comprises four hardened pins which secure the yokes to the centerpiece.5. The system as recited in claim 1 , wherein a wear plate is ...

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Номер записи: 41
20-02-2014 дата публикации

DIRECTIONAL DRILLING USING MAGNETIC BIASING

Номер: US20140048334A1
Автор: Downton Geoffrey C., PABON Jahir
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

Apparatus and methods are disclosed for directionally drilling an earth formation where magnet arrays are utilized to provide net lateral force between a first member coupled to a drill bit and another member that either extends through or around the first member. 1. A directional drilling apparatus , comprising:a tubular member having an inner surface;an elongated member having an outer surface and extending inside said tubular member;a controller that controls at least one of a rotational and an axial alignment of said tubular member and said elongated member;a drilling bit coupled to one of said tubular member and said elongated member;a first array of magnets coupled to said tubular member;a second array of magnets coupled to said elongated member, wherein said first array of magnets and said second array of magnets are arranged in a first configuration controlled by said controller to provide a net lateral force to said one of said tubular member and said elongated member coupled to said drilling bit, thereby directionally controlling said drilling bit.2. A directional drilling apparatus according to claim 1 , wherein:said tubular member is a drill collar.3. A directional drilling apparatus according to claim 2 , wherein:said elongated member is an essentially geostationary mandrel.4. A directional drilling apparatus according to claim 3 , wherein:said drilling bit is coupled to said drill collar.5. A directional drilling apparatus according to claim 4 , further comprising:first and second sets of bearings, axially spaced and located between said outer surface of said mandrel and said inner surface of said drill collar, said second set of bearings located distal said first set of bearings, wherein said first array of magnets and said second array of magnets are located axially between said second set of bearings and said drilling bit.6. A directional drilling apparatus according to claim 4 , further comprising:first and second sets of bearings, axially spaced ...

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Номер записи: 42
27-02-2014 дата публикации

Drill With Remotely Controlled Operating Modes and System and Method for Providing the Same

Номер: US20140054087A1
Автор: Varner Horace M., Wang Fun-Den
Принадлежит: RAMAX, LLC

The present invention relates to a drilling system with a multi-function drill head used in, among other applications, oil and gas drilling. The system is used to enhance the effective permeability of an oil and/or gas reservoir by drilling or cutting new structures into the reservoir. The system is capable of cutting straight bores, radius bores, or side panels, by water jets alone or in combination with lasers. In various embodiments, a device for remotely controlling the mode of the system by variations in the pressure of a drilling fluid is also provided, allowing an operator to switch between various modes (straight drilling, radius bore drilling, panel cutting, etc.) without withdrawing the drill string from underground. 1. A valve assembly for controlling operating modes of a drill , comprising: a bore;', 'a first end;', 'a first hole;', 'a second hole;', 'a first body groove interconnected to the first hole, wherein the first body groove corresponds to a first operating mode; and', 'a second body groove interconnected to the second hole, wherein the second body groove corresponds to a second operating mode;, 'a housing, comprisinga spool having an axial bore, a first notch, a second notch, a first end, and a second end, wherein the spool is movable between a first position and a second position, wherein the first end of the spool receives an operating fluid, and wherein the first position corresponds to a first pressure of the operating fluid and the second position corresponds to a second pressure of the operating fluid;a spring biased against the second end of the spool and the first end of the housing; anda detent assembly for locking the spool in the first position and in the second position, wherein the detent comprises a spring biased against a locking pin, wherein the locking pin is biased against the first notch of the spool when the spool is in the first position and the locking pin is biased against the second notch of the spool when the spool is ...

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Номер записи: 43
06-03-2014 дата публикации

Downhole Robotic Micro-Drilling System

Номер: US20140060838A1
Автор: Herman Joseph Schellstede
Принадлежит: Individual

The invention relates to the completion and enhancement of oil and gas wells. The invention provides for a downhole tool which: enters vertical or horizontal wells located adjacent to the oil and gas bearing formation, parts the casing and extends outward forming micro-boreholes necessary to remove residual oil and gas which remain in place. After the initial fluid production has been harvested, the invention can be employed on new or old wells and can operate in all conditions which wells encounter during the standard drilling process. The process of micro-holes can replace the process known as “fracking”. Fracking is being employed; however the process is being reviewed due to safety of human life. The invention employs special alloys and procedures to form the extended reach micro-boreholes.

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Номер записи: 44
06-03-2014 дата публикации

Apparatus and method for drilling a well

Номер: US20140060935A1
Автор: Daniel M. Winslow, Neelesh Deolalikar
Принадлежит: Halliburton Energy Services Inc

A method for forming a controllable bend angle in a drill string in a wellbore comprises attaching an upper housing to a drill string. At least, one drive motor is anchored in the upper housing. A middle housing is operably coupled to the at least one drive motor. A lower housing is operably coupled to the at least one drive motor. The at least one drive motor is controllably operated to rotate the middle housing by a first rotation angle with respect to the upper housing, and to rotate the lower housing by a second rotation angle with respect to the upper housing, to generate a desired bend angle between the middle housing and the lower housing at a target toolface orientation between the bend angle and the upper housing.

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Номер записи: 45
20-03-2014 дата публикации

Bi-Stable Valve

Номер: US20140076637A1
Автор: POLYNTSEV OLEG
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

A bi-stable valve includes a first chamber having a first aperture and a second aperture, and a second chamber having a first aperture and a second aperture. The bi-stable valve also includes a shaft having a first valve member adjacent a first end of the shaft and a second valve member adjacent an opposite second end of the shaft. The shaft is movable between a first position, in which the first valve member closes off the second aperture of the first chamber and the second valve member closes off the second aperture of the second chamber to prevent fluid from passing through the second apertures of the first and second chambers, and a second position, in which the first valve member and the second valve member allow fluid to pass through the second aperture of the first chamber and the second aperture of the second chamber. 1. A down hole tool control system , comprising: a first chamber having a first aperture and a second aperture;', 'a second chamber having a first aperture and a second aperture;', 'a shaft having a first valve member adjacent a first end of the shaft and a second valve member adjacent an opposite second end of the shaft, the shaft movable between a first position, in which the first valve member closes off the second aperture of the first chamber and the second valve member closes off the second aperture of the second chamber to prevent fluid from passing through the second apertures of the first and second chambers, and a second position, in which the first valve member and the second valve member allow fluid to pass through the second aperture of the first chamber and the second aperture of the second chamber;', 'a third chamber having a first aperture and a second aperture, the first aperture in fluid communication with the second aperture of the first chamber; and', 'a fourth chamber having a first aperture, a second aperture and a third aperture, the first aperture of the fourth chamber in fluid communication with the second aperture of ...

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Номер записи: 46
03-04-2014 дата публикации

Diverter latch assembly system

Номер: US20140090894A1
Автор: John Chysostom Wolf, Luis A. Gonzalez
Принадлежит: Schlumberger Technology Corp

A system and methodology facilitates use of a diverter latch assembly in cooperation with a lateral wellbore. The diverter latch assembly comprises an upper latch assembly coupled with a lower latch assembly via a swivel. The upper latch assembly also comprises a releasable latch positioned to engage a tieback receptacle located in the well. The swivel and the releasable latch are designed to enable rotation of the releasable latch relative to a tubing of the lower latch assembly during release of the diverter latch assembly from the tieback receptacle. The rotational release system helps provide controlled release and withdrawal of the diverter latch assembly while reducing risk of damage to the diverter latch assembly or other downhole components.

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Номер записи: 47
03-01-2019 дата публикации

MILLABLE BIT TO WHIPSTOCK CONNECTOR

Номер: US20190003264A1
Автор: Alsup Shelton W, Campbell John Edward, Dewey Charles H., Nguyen Tuan Anh, Swadi Shantanu N.
Принадлежит:

A departure device couples to a bit using a connector that facilitates release of the bit from the departure device. The connector may be more millable than the departure device and can transmit axial and torque loads between the bit and the departure device. The connector may include a material having lesser strength or hardness than the departure device, and may be millable by the bit. Another example connector may have connection points with the bit, and a movable member of the departure device may a force to the connector and contribute to releasing the connection between the bit and the departure device. A tensile connector between the bit and the movable member may apply a tension force to the movable member, urging the movable member toward an extended position in which the movable member is aligned coherently with a sloped face of the departure device. 1. A connector for coupling a bit to a departure device , comprising:a body having a yield strength between 205 MPa and 485 MPa;a push loading area at a proximal end portion of the body, the push loading area configured to receive an axial force;a torque loading area at a proximal end portion of the body, the torque loading area configured to receive a torque;a push transmission area at a distal end portion of the body, the push transmission area configured to transmit the axial force; anda torque transmission area at a distal end of the body, the torque transmission area configured to transmit the torque.2. The connector of claim 1 , the body having a yield strength between 380 MPa and 450 MPa.3. The connector of claim 1 , the body being made of aluminum bronze.4. The connector of claim 1 , the body defining one or more recesses extending from the proximal end portion toward the distal end portion of the body.5. The connector of claim 4 , at least a portion of the torque loading area being located on a laterally-facing surface adjacent at least one of the one or more recesses claim 4 , or at least a portion ...

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Номер записи: 48
13-01-2022 дата публикации

ROTARY STEERABLE DRILLING ASSEMBLY AND METHOD

Номер: US20220010625A1
Автор: Gilleylen Russ, Neil Paul, Schen Aaron, Williams Clay
Принадлежит: NATIONAL OILWELL VARCO, L.P.

A rotary steerable drilling assembly for directional drilling includes a driveshaft rotatably disposed in a driveshaft housing, a bend adjustment assembly coupled to the driveshaft housing, a bearing mandrel coupled to the bend adjustment assembly, and a torque control assembly including a rotor configured to couple with a drill string, a stator assembly coupled to the downhole motor, and a torque control actuator assembly configured to control the amount of torque transmitted between the rotor and the stator assembly, wherein the bend adjustment assembly includes a first position providing a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel, wherein the bend adjustment assembly includes a second position providing a second deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel, the second deflection angle being different from the first deflection angle. 1. A rotary steerable drilling assembly for directional drilling , comprising:a driveshaft rotatably disposed in a driveshaft housing;a bend adjustment assembly coupled to the driveshaft housing;a bearing mandrel coupled to the bend adjustment assembly; and a rotor configured to couple with a drill string;', 'a stator assembly coupled to the downhole motor; and', 'a torque control actuator assembly configured to control the amount of torque transmitted between the rotor and the stator assembly;, 'a torque control assembly comprisingwherein the bend adjustment assembly includes a first position configured to provide a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel; andwherein the bend adjustment assembly includes a second position configured to provide a second deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel, the second deflection ...

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Номер записи: 49
08-01-2015 дата публикации

PROTECTION OF CASING LOWSIDE WHILE MILLING CASING EXIT

Номер: US20150007993A1
Автор: Dahl Espen, Parlin Joseph DeWitt
Принадлежит: Halliburton Energy Services, Inc.

The lowside of a casing joint is protected from wear while milling a casing exit for a lateral borehole. The casing joint is coupled to a casing string and is made of a material that is softer than that of the casing string. A whipstock assembly is arranged within the casing joint and has a deflector surface operable to direct a drilling assembly into a sidewall of the casing joint to create the casing exit. A wear sleeve is coupled to and extends axially from the whipstock assembly, the wear sleeve defining a throat that extends axially along the axial length of the wear sleeve and transitions into the deflector surface. The axial length of the wear sleeve extends beyond a point of contact where the drilling assembly would otherwise engage the lowside of the casing joint. 1. A well system subassembly , comprising:a casing joint coupled to a casing string and defining a lowside therein, the casing joint being made of a first material that is softer than that of the casing string;a whipstock assembly arranged within the casing joint and having a deflector surface operable to direct a drilling assembly into a sidewall of the casing joint to create a casing exit; anda wear sleeve coupled to and extending axially from the whipstock assembly, the wear sleeve defining a throat that extends along an axial length of the wear sleeve and transitions into the deflector surface, wherein the axial length of the wear sleeve extends across a point of contact where the drilling assembly would otherwise engage the lowside of the casing joint, whereby the wear sleeve protects the lowside of the casing joint from wear caused by the drilling assembly.2. The subassembly of claim 1 , wherein the first material is aluminum.3. The subassembly of claim 1 , wherein the wear sleeve is made of a second material that is harder than the first material.4. The subassembly of claim 1 , wherein the wear sleeve is formed as an integral extension of the whipstock assembly.5. The subassembly of claim 1 ...

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Номер записи: 50
08-01-2015 дата публикации

Rotary Steerable Push-the-Bit Drilling Apparatus with Self-Cleaning Fluid Filter

Номер: US20150008043A1
Автор: Clausen Jeffery Ronald, Prill Jonathan Ryan
Принадлежит: NATIONAL OILWELL VARCO, L.P.

A steerable drilling apparatus includes a control system inside a cylindrical housing connected to a drill bit having radially-extendable pistons. A fluid-metering assembly directs a piston-actuating fluid into fluid channels leading to respective pistons. The control system controls the fluid-metering assembly to allow fluid flow to selected pistons, causing the actuated pistons to temporarily extend in the opposite direction to a desired wellbore deviation, thereby deflecting the drill bit away from the borehole centerline. An upper member in the fluid-metering assembly can be moved to stabilize, steer, and change TFA within the drill bit. The control system and drill bit are connected so as to facilitate removal to change the drill bit's steering section and cutting structure configuration or gauge simultaneously. The apparatus may incorporate a fluid filter module mounted to the control system. The pistons may incorporate auxiliary cutting elements to provide near-bit reaming capability. 154-. (canceled)55. A drilling apparatus for drilling a borehole in a subterranean formation , the drilling apparatus comprising:a body having a central axis, an upper end, a lower end, a central channel extending axially from the upper end, and a plurality of circumferentially-spaced fluid channels extending axially from the upper end and radially spaced from the central channel, wherein the central channel is configured to flow drilling fluid through the body;a plurality of pistons housed in the body, wherein each fluid channel in the body extends to one of the piston and is configured to flow drilling fluid to the corresponding piston, wherein each piston is configured to move radially outward relative to the body in response to drilling fluid supplied by the corresponding fluid channel, and wherein each piston has a formation facing surface including a plurality of cutting elements configured to engage the formation;a fluid-metering assembly configured to selectively meter ...

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Номер записи: 51
08-01-2015 дата публикации

Steerable Drilling System

Номер: US20150008045A1
Автор: Downton Geoffrey C.
Принадлежит:

A steerable system comprises a fluid powered motor having a rotor and a stator and a bias arrangement having a plurality of bias pads connected to the stator so as to be rotatable therewith, the bias pads being moveable to allow the application of a side load to the steerable system. 120-. (canceled)21. A steerable drilling system , comprising:a fluid powered motor having a rotor and a stator within a housing, the stator being coupled into a drillstring so as to be rotatable therewith, and a bias arrangement having a plurality of bias pads connected to the stator so as to be rotatable therewith, the bias pads being moveable by a pressure differential between fluid upstream of the fluid powered motor and fluid in a wellbore annulus outside of the fluid powered motor to allow the application of a side load to the steerable system.22. The system as recited in claim 21 , wherein each bias pad is moveable by an actuator.23. The system as recited in claim 22 , wherein each actuator comprises a piston to which fluid can be supplied to move the associated bias pad from a retracted position towards an extended position.24. The system as recited in claim 23 , further comprising a control arrangement for controlling the operation of the actuators.25. The system as recited in claim 24 , wherein the control arrangement includes a plurality of solenoid actuated valves.26. The system as recited in claim 25 , wherein each solenoid actuated valve includes a bistable actuator.27. The system as recited in claim 24 , wherein the control arrangement includes a control unit claim 24 , the motor is used to drive a drill bit claim 24 , and the motor is located between the drill bit and at least part of the control unit.28. The system as recited in claim 27 , wherein the control unit includes at least one sensor arranged to sense a drilling parameter.29. A system claim 27 , comprising: a fluid powered motor disposed along a drillstring and rotatable with the drillstring; and', 'a bias ...

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Номер записи: 52
12-01-2017 дата публикации

ADJUSTABLE BENT HOUSINGS WITH SACRIFICIAL SUPPORT MEMBERS

Номер: US20170009531A1
Автор: Hagar Everett, Lange Gustav E., Wheeler Fraser
Принадлежит: Halliburton Energy Services, Inc.

Adjustable drill string housings are described for use in the directional drilling of wellbores, e.g. wellbores for hydrocarbon recovery wells. The adjustable drill string housings permit adjustment of a bend angle in the housings without removing the housings from a wellbore. In some exemplary embodiments, the bend angle can be adjusted by changing the internal stresses in a support member carried by the housings. In other embodiments, the bend angle may be adjusted by causing failure of sacrificial support members carried by the housings, and the failure may be caused by delivering chemicals through a chemical delivery system to the sacrificial support members. Methods of operating the adjustable drill string housings include multi-lateral drilling operations wherein the bend angle is adjusted when a casing window has been detected. 1. An adjustable drill string housing , comprising: a first operational configuration wherein the annular member maintains an internal preload therein such that the upper and lower longitudinal axes are disposed at a first bend angle with respect to one another, and', 'a second operational configuration wherein at least a portion of the internal preload is relieved such that the upper and lower longitudinal axes are disposed at a second bend angle with respect to one another;, 'an annular member having an upper end and a lower end, the annular member defining an upper longitudinal axis extending through the upper end and a lower longitudinal axis extending through the lower end, the annular member deformable about a bend axis betweenat least one sacrificial support member carried by the annular member, the at least one sacrificial support member extending across the bend axis and coupled to the annular member to maintain at least a portion of the internal preload in the annular member such that failure of the at least one sacrificial support member induces the annular member to move to the second operational configuration.2. The ...

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Номер записи: 53
14-01-2016 дата публикации

CASING EXIT MILLS AND APPARATUS AND METHODS OF USE

Номер: US20160010412A1
Автор: Ghegadmal Tejas J., II CALVIN J., STOWE
Принадлежит: BAKER HUGHES INCORPORATED

A mill for use in milling a section in a wellbore is disclosed that includes a first concave curved section followed by a substantially flat section and a second concave curved section following the substantially flat section and a number of blades attached to the first concave curved section, substantially flat section and the second concave curved section, wherein each such blade includes a first convex curved portion that corresponds to the first concave curved section and a second convex curved portion that corresponds to the second concave curved section. 1. A mill for use in a wellbore , comprising:a blade body that includes a raised section of a first diameter and a first tapered section extending from a first end of the raised section to a first reduced section of the blade body that has a second diameter that is less than the first diameter, wherein the first tapered section includes a curved surface .2. The mill of claim 1 , wherein the blade body includes a second tapered section that extends from a second end of the raised section to a second reduced section of the blade body that has a third diameter that is less than the first diameter claim 1 , wherein the second tapered section includes a curved surface.3. The mill of further comprising:a blade attached to the raised section and the first tapered section, wherein a surface of the blade includes a curved surface that substantially corresponds to the curved surface of the first tapered section.4. The mill of further comprising a boss disposed a selected distance from the first end of the raised section claim 1 , wherein the boss has a diameter that is between the first diameter and the second diameter.5. The mill of further comprising a curved tapered section between at least one of: the first reduced section and the boss; and the boss and a third reduced section.6. The mill of further comprising a blade attached to the raised section claim 2 , the first tapered section and the second tapered section ...

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Номер записи: 54
11-01-2018 дата публикации

Apparatus and method for drilling a directional borehole in the ground

Номер: US20180010390A1
Автор: Gerardus Godefridus Johannes Van Og, Joop Roodenburg, Pieter Dirk Melis Van Duivendijk
Принадлежит: Huisman Well Technology BV

A directional casing drilling system includes a casing string, a drilling rig and a retrievable Bottom Hole Assembly (BHA). The drilling rig includes a casing drive for rotating the casing string in the borehole, a control system for controlling the casing drive, and a mud pump for pumping a continuous flow of drilling mud into the casing string. The BHA includes a torque transfer section, with which it is secured in the casing string, and a drill bit section held in a drilling position in the torque transfer section. It further includes a mud drive that rotates the drilling position of the drill bit section about the longitudinal axis of the torque transfer section, and a communicating device for communicating the orientation of the drill bit to the control system. The BHA is steered by adjusting the rotational speed of the casing string.

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Номер записи: 55
10-01-2019 дата публикации

Mechanics experiment system and method for perforated string in underground perforating blasting of oil-gas well

Номер: US20190010760A1
Автор: Guorong Wang, Haiyan ZHU, Jun Liu, Qingyou Liu, Xian Liu, Xiaoqiang GUO
Принадлежит: SOUTHWEST PETROLEUM UNIVERSITY

A mechanics experiment system for a perforated string in underground perforating blasting of an oil-gas well. The system includes an experiment water pool, a perforated string arranged in the experiment water pool, a signal amplifier, an A/D converter and a computer. The signal amplifier, the A/D converter and the computer are arranged outside the experiment water pool and are sequentially electrically connected; the perforated string includes an oil pipe, a packing tube, a sleeve, an acceleration testing short joint A, a damper, an acceleration testing short joint B and a perforating gun which are sequentially connected from top to bottom.

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Номер записи: 56
10-01-2019 дата публикации

EXPANDABLE REENTRY COMPLETION DEVICE

Номер: US20190010786A1
Автор: Durst Douglas Glenn
Принадлежит:

A method includes severing a liner positioned in a first wellbore at least partially lined with casing and thereby providing a severed end, conveying a mid-completion assembly into the first wellbore and receiving the severed end within a tail pipe assembly of the mid-completion assembly, wherein a smallest inner diameter of the mid-completion assembly is greater than or equal to a smallest inner diameter of the liner and thereby permits tools sized for operations in the liner to pass through the mid-completion assembly, actuating an expandable device of the mid-completion assembly to sealingly engage an inner surface of the casing uphole from the severed end, and drilling a second wellbore extending from the first wellbore. 1. A method , comprising:severing a liner positioned in a first wellbore at least partially lined with casing and thereby providing a severed end;conveying a mid-completion assembly into the first wellbore and receiving the severed end within a tail pipe assembly of the mid-completion assembly, wherein a smallest inner diameter of the mid-completion assembly is greater than or equal to a smallest inner diameter of the liner and thereby permits tools sized for operations in the liner to pass through the mid-completion assembly;actuating an expandable device of the mid-completion assembly to sealingly engage an inner surface of the casing uphole from the severed end; anddrilling a second wellbore extending from the first wellbore.2. The method of claim 1 , wherein receiving the severed end within the tail pipe assembly comprises engaging sealing elements disposed on an inner surface of the tail pipe assembly with an outer surface of the severed end.3. The method of claim 1 , wherein the mid-completion assembly further includes an orientation device and the method further comprises:conveying a deflector tool into the first wellbore;angularly orienting the deflector tool within the first wellbore using the orientation device;securing the deflector ...

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Номер записи: 57
09-01-2020 дата публикации

ROTARY STEERABLE SYSTEM WITH ROLLING HOUSING

Номер: US20200011135A1
Автор: Deolalikar Neelesh V., Winslow Daniel M.
Принадлежит: Halliburton Energy Services, Inc.

A directional drilling device for drilling a wellbore having a wall, the device including an outer housing, a driveshaft located at least partially within and selectively rotatable with respect to the outer housing. The device also includes extendable members oveable to extend radially outwardly from the outer housing and so as to apply a force onto the wellbore wall and move the device off-center in the wellbore in a direction. The device further includes a hydraulic actuation system operable to control hydraulic fluid to extend and retract of the extendable members. The rotational orientation of the extendable members is controllable by rotation of the outer housing by the driveshaft and the rotational orientation of the extendable members and the outer housing and thus the direction may be maintained by extension of the extendable members into contact with the borehole to restrain the outer housing from rotating. 1. A directional drilling device for drilling a wellbore having a wall , comprising: an outer housing , a driveshaft located at least partially within and selectively rotatable with respect to the outer housing , extendable members moveable to extend radially outwardly from the outer housing and so as to apply a force onto the wellbore wall and move the device off-center in the wellbore in a direction , a hydraulic actuation system operable to control hydraulic fluid to extend and retract of the extendable members , wherein the rotational orientation of the extendable members is controllable by rotation of the outer housing by the driveshaft , and wherein the rotational orientation of the extendable members and the outer housing and thus the direction may be maintained by extension of the extendable members into contact with the borehole to restrain the outer housing from rotating.2. The device of claim 1 , wherein the extendable members are extendable in unison.3. The device of claim 1 , wherein the extendable member is extendable radially outwardly ...

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Номер записи: 58
03-02-2022 дата публикации

Drilling A Borehole With A Steering System Using A Modular Cam Arrangement

Номер: US20220034166A1
Автор: DSilva Alben
Принадлежит: Halliburton Energy Services, Inc.

A cam system for use with a rotary steerable system, the cam system includes a housing, a cam positioned at least partially within the housing, and a solid cam shaft engaged with the cam and positioned at least partially within the housing, wherein the cam is operable to adjust an azimuthal orientation of the solid cam shaft. 1. A cam system for use with a rotary steerable system , the cam system comprising:a housing;a cam positioned at least partially within the housing; anda solid cam shaft engaged with the cam and positioned at least partially within the housing, wherein the cam is operable to adjust an azimuthal orientation of the solid cam shaft.2. The cam system of claim 1 , further comprising a shaft cap coupled to the solid cam shaft at an end opposite of the cam claim 1 , wherein the shaft cap comprises a bore and a channel to allow a drilling fluid to flow from an area outside the shaft cap between the solid cam shaft and the housing into the bore of the shaft cap.3. The cam system of claim 2 , wherein the shaft cap is coupleable to a hollow constant velocity shaft and the shaft cap is pivotable to pivot rotation of the solid cam shaft at the azimuthal orientation to rotation about a central axis of a CV section.4. The cam system of claim 2 , wherein the end of the solid cam shaft extends axially further than the housing to attach to the shaft cap outside of the housing.5. The cam system of claim 1 , wherein a drilling fluid is flowable in an area between the solid cam shaft and the housing.6. The cam system of claim 1 , further comprising a bearing positioned between the cam and the housing and a lubrication system claim 1 , the lubrication system comprising:a flow sleeve positioned between the solid cam shaft and the housing to define a cavity between the flow sleeve and the housing;a piston that fluidly separates the cavity into a first chamber and a second chamber; anda biasing device positioned in the second chamber and between the piston and an end ...

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Номер записи: 59
03-02-2022 дата публикации

ROTARY STEERABLE SYSTEM WITH CUTTERS

Номер: US20220034167A1
Автор: Azar Michael George, Boualleg Riadh, Downton Geoffrey Charles, Hill Richard D., Li Denis, Richards Edward
Принадлежит:

A rotary steerable tool may include a tool body with an upper end and a lower end. Additionally, the tool body may include at least one steering assembly extending from the tool body and includes at least one steering actuator configured to extend beyond other portions of the steering assembly. Furthermore, at least one cutter may be disposed on the rotary steerable tool a distance from the at least one steering actuator. 1. A rotary steerable tool , comprising:a tool body, wherein the tool body has an upper connection end and a lower connection end, the lower connection end including a pin connection or a box connection;at least one steering assembly carried by the tool body and extending radially from the tool body, the at least one steering assembly comprising at least one steering actuator configured to extend radially beyond other portions of the steering assembly; andat least one cutter on the rotary steerable tool a distance from the at least one steering actuator, the at least one cutter positioned between the upper connection end and the lower connection end of the tool body carrying the at least one steering assembly,wherein the rotary steerable tool, excluding the at least one cutter, has a first diameter when the steering actuator is not extended, and the at least one cutter is at a diameter greater than the first diameter.2. The rotary steerable tool of claim 1 , wherein the at least one steering assembly comprises at least one piston assembly configured to house the at least one steering actuator.3. The rotary steerable tool of claim 2 , wherein the steering actuator comprises a piston within the piston assembly to extend or retract to provide a steering offset.4. The rotary steerable tool of claim 1 , wherein the steering actuator comprises an actuatable bias pad.5. The rotary steerable tool of claim 1 , wherein the at least one cutter is radially moveable.6. The rotary steerable tool of claim 1 , wherein the at least one cutter is on the at least one ...

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Номер записи: 60
19-01-2017 дата публикации

ADJUSTMENT MECHANISMS FOR ADJUSTABLE BENT HOUSINGS

Номер: US20170016277A1
Автор: Lange Gustav E., Solanki Amit, Wheeler Fraser
Принадлежит: Halliburton Energy Services, Inc.

Adjustable drill string housings are described for use in the directional drilling of wellbores, e.g. wellbores for hydrocarbon recovery wells. The adjustable drill string housings permit adjustment of a bend angle in the housings without removing the housings from a wellbore. In some exemplary embodiments, the bend angle can be adjusted by changing the internal stresses in a support member carried by the housings. In other embodiments, the bend angle may be adjusted by causing failure of sacrificial support members carried by the housings, and the failure may be caused by delivering chemicals through a chemical delivery system to the sacrificial support members. Methods of operating the adjustable drill string housings include multi-lateral drilling operations wherein the bend angle is adjusted when a casing window has been detected. 1. An adjustable drill string housing , comprising:an annular member having an upper end and a lower end, the annular member defining an upper longitudinal axis extending through the upper end and a lower longitudinal axis extending through the lower end, the annular member deformable about a bend axis between a first configuration wherein the upper and lower longitudinal axes are disposed at a first bend angle with respect to one another and a second configuration wherein the upper and lower longitudinal axes are disposed at a second bend angle with respect to one another; andan adjustment mechanism comprising at least one support member carried by the annular member radially offset from the upper and lower longitudinal axes and extending across the bend axis, the adjustment mechanism selectively movable between a first arrangement for maintaining the annular member in the first configuration and a second arrangement for maintaining the annular member in the second configuration, wherein the adjustment mechanism changes an real stress in the at least one support member to move between the first and second arrangements.2. The ...

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Номер записи: 61
17-04-2014 дата публикации

SYSTEMS AND METHODS FOR DIRECTIONAL DRILLING

Номер: US20140102792A1
Автор: Hogan Thomas S., JR. Michael J., Lachner
Принадлежит:

An underground directional drilling system can comprise a plurality of elongated dual-shaft segments coupled together end-to-end in a drilling string. The segments include an inner shaft that is independently rotable relative to an annular outer shaft, with the inner shafts being coupled together and the outer shafts being coupled together. The plurality of dual-shaft segments can comprise a communication segment that comprises a first electrode, a second electrode, a gap portion between the first and second electrodes that provides electrical insulation therebetween, and an electronic communication controller electrically coupled to the first and second electrodes. The communication controller is configured to generate voltage differences between the electrodes that cause electrical pulses to periodically transfer between the electrodes through the gap portion to wirelessly communicate drilling related data from underground to the surface. 1. A communication segment for use in a dual-shaft underground directional drilling system , the communication segment comprising:an elongated inner shaft, and an elongated annular outer shaft positioned around the inner shaft;wherein the inner and outer shafts are rotatable independently of each other about a common longitudinal rotation axis;wherein the inner shaft is configured to be coupled to inner shafts of adjacent segments of the dual-shaft underground directional drilling system such that, when coupled together, the inner shaft can transfer forces between the inner shafts of the adjacent segments;wherein the outer shaft is configured to be coupled to outer shafts of adjacent segments of the dual-shaft underground directional drilling system such that, when coupled together, the outer shaft can transfer forces between the outer shafts of the adjacent segments;wherein the outer shaft further comprises a first longitudinal portion, a second longitudinal portion, and a gap portion between the first and second longitudinal ...

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Номер записи: 62
17-04-2014 дата публикации

Rotary Steerable Drilling System for Drilling a Borehole in an Earth Formation

Номер: US20140102800A1
Автор: Lacour Bertrand
Принадлежит:

A bottom hole assembly for drilling a deviated wellbore is provided. The bottom hole assembly includes a drill bit and a connected rotary steerable drilling system, or RSS. The RSS includes one or more orientation sensors, a steering unit configured to direct a force through the drill bit and against a rock formation, control electronics designed to send control signals to the steering unit, and power electronics. The steering unit transforms electrical power to linear displacement and force using linear actuators acting off-center to the longitudinal axis of the drill string. 1. A bottom hole assembly , comprising:a drill bit designed to cut a rock formation in a subsurface; and a power generator for generating electrical power,', 'one or more orientation sensors,', 'a steering unit configured to direct a force of the drill bit against the rock formation, wherein the steering unit transforms electrical power into off-center, linear displacement and force,', 'control electronics designed to send control signals to the steering unit, and', 'power electronics designed to process current and voltage generated by the alternator, and transform the current and voltage into values useful for providing power to the orientation sensors, the control electronics, and the steering unit., 'a rotary steerable drilling system for controlling the drill bit in order to form a deviated wellbore, wherein the rotary steerable drilling system comprises2. The bottom hole assembly of claim 1 , wherein the drill bit is a static bit body having cutting elements fixed thereon or impregnated therein.3. The bottom hole assembly of claim 1 , wherein the drill bit comprises one or more roller cones.4. The bottom hole assembly of claim 1 , wherein the power generator comprises a turbine that moves in response to a flow of drilling mud claim 1 , and an alternator that transforms mechanical movement of the turbine into electrical power.5. The bottom hole assembly of claim 1 , wherein the one or ...

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Номер записи: 63
22-01-2015 дата публикации

DUAL MOTOR SYSTEMS AND NON-ROTATING SENSORS FOR USE IN DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS

Номер: US20150021094A1
Автор: MACDONALD Duncan Charles
Принадлежит:

A method for forming a subsurface wellbore is disclosed. The method includes operating a drilling string in a first direction of rotation. A first motor located near the end of the drilling string is operated in a direction of rotation opposite that of the drilling string. A drill bit is rotated using a second motor that is coupled to the first motor. 12468-. (canceled)2469. A method for forming a subsurface wellbore , comprising:rotating a drilling string in a first direction of rotation;rotating at least a portion of a bottom hole assembly coupled to the drilling string in a second direction of rotation, the second direction of rotation being opposite the first direction of rotation; androtating a drill bit coupled to an end of the bottom hole assembly in the first direction of rotation.2470. The method of claim 2469 , further comprising rotating the portion of the bottom hole assembly in the second direction of rotation using a motor located near the end of the drilling string.2471. The method of claim 2469 , further comprising rotating the drill bit using a motor located at the end of the bottom hole assembly.2472. The method of claim 2469 , further comprising controlling the drill bit by changing a rotation speed of the drilling string in the first direction of rotation or a rotation speed of the portion of the bottom hole assembly in the second direction of rotation.2473. The method of claim 2469 , further comprising changing a trajectory of drilling while the drilling string remains in a rotary mode.2474. The method of claim 2473 , wherein changing a trajectory of drilling while the drilling string remains in a rotary mode comprises:reducing the speed of the drilling string to a neutral drilling speed in which the drilling string speed in the first direction of rotation is substantially equal and opposite to a speed of the portion of the bottom hole assembly in the second direction of rotation; andchanging the direction of the drill bit to change the ...

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Номер записи: 64
28-01-2016 дата публикации

DOWNHOLE DIRECTIONAL DRILLING ASSEMBLY

Номер: US20160024848A1
Автор: Desmette Sebastian, Lasater Jeffrey B.
Принадлежит: TERCEL IP LTD.

The assembly comprise a bent sub (), and optionally a swivel (). The bend angle a of the bent sub in relation to the central axis of the assembly can be adjusted by rotating lower bend member () relative to upper bend member (), which is non-rotatably attached to downhole motor (), using harmonic drive () arranged between lower and upper bend members. In order to adjust the rotational orientation of the bent sub (), a swivel () is provided having upper and lower swivel members (). Upper swivel member can be rotated relative to lower member, which is non-rotatably attached to the downhole motor, using a second harmonic drive () arranged between lower and upper swivel members. 1. A downhole tool assembly , comprising:a first body and a second body arranged to rotate one relative to the other about a rotation axis anda drive arrangement between the first and the second body for rotating the first and the second body relative to each other, wherein the drive arrangement comprises a harmonic drive comprising a wave generator, a flexible gear and an outer gear, wherein one of the wave generator, flexible gear and outer gear is adapted to function as a rotary input component and another of the wave generator, flexible gear and outer gear is adapted to function as a rotary output component; and wherein the downhole tool assembly comprises at least one motor for rotating a component of the downhole tool assembly, wherein the harmonic drive is arranged in a couplable relationship with the motor so that rotation of the motor results in rotation of the first and the second bodies relative to each other.2. A downhole tool assembly as claimed in claim 1 , wherein the remaining one of the wave generator claim 1 , flexible gear and outer gear is adapted to function as a stationary component of the harmonic drive.3. A downhole tool assembly as claimed in claim 1 , wherein the downhole tool arrangement comprises a Bottom Hole Assembly (BHA) wherein at least one of the first and ...

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Номер записи: 65
24-04-2014 дата публикации

MODULAR ROTARY STEERABLE ACTUATORS, STEERING TOOLS, AND ROTARY STEERABLE DRILLING SYSTEMS WITH MODULAR ACTUATORS

Номер: US20140110178A1
Автор: Kirkhope Kennedy John, SAVAGE John Keith
Принадлежит: Halliburton Energy Services, Inc.

Modular actuators, steering tools, and rotary steerable drilling systems are presented herein. A modular actuator is disclosed for use in directing a drill string, which includes a housing proximate a drive shaft. The modular actuator includes a cartridge that is configured to couple to the outer periphery of the housing. A fluid reservoir is contained within the cartridge. A hydraulically actuated actuator piston, which is slidably disposed at least partially inside the cartridge, is movable between activated and deactivated positions. A hydraulic control system is also contained within the cartridge, fluidly coupling the fluid reservoir to the actuator piston. The hydraulic control system is configured to regulate movement of the actuator piston between the activated and deactivated positions such that the actuator piston selectively presses against and moves the drive shaft and thereby changes the direction of the drill string. 1. A modular actuator for use in directing a drill string , the drill string having a housing proximate a drive shaft , the modular actuator comprising:a cartridge configured to couple to the outer periphery of the housing;a fluid reservoir contained within the cartridge;a hydraulically actuated actuator piston slidably disposed at least partially inside the cartridge, the actuator piston being movable between first and second positions; anda hydraulic control system contained within the cartridge and fluidly coupling the fluid reservoir to the actuator piston, the hydraulic control system being configured to regulate movement of the actuator piston between the first and second positions such that the piston moves the drive shaft and thereby changes the direction of the drill string.2. The modular actuator of claim 1 , wherein the fluid reservoir and the hydraulic control system are fluidly sealed inside the cartridge.3. The modular actuator of claim 1 , wherein the drill string further comprises a steering controller claim 1 , and wherein ...

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Номер записи: 66
23-01-2020 дата публикации

ROTARY STEERABLE DRILLING SYSTEM WITH ACTIVE STABILIZER

Номер: US20200024913A1
Автор: BRAZIL Stewart Blake, Fu Xu, REN Zhiguo, Wang Chengbao
Принадлежит:

A drilling system includes a drill string for connecting with a drill bit for drilling a borehole, a fixed stabilizer fixed on the drill string, and an active stabilizer including a body and actuators connecting the body and the drill string. The actuators are capable of driving the drill string away from a center of the borehole with a displacement. The body has an outer surface for contacting a wall of the borehole, an inner surface facing the drill string, and at least one guiding portion projecting from the inner surface and each defining at least one groove. The drill string includes at least one sliding portion slidable within the at least one groove respectively to constrain movement between the drill string and the active stabilizer along an axial direction of the drill string and guide movement between the drill string and the active stabilizer perpendicular to the axial direction. 1. A drilling system , comprising:a rotatable drill string for connecting with a drill bit for drilling a borehole;at least one fixed stabilizer fixed on the drill string and having an outer surface for contacting a wall of the borehole; and a body having an outer surface for contacting a wall of the borehole, an inner surface facing the drill string, and at least one guiding portion projecting from the inner surface towards the drill string, each guiding portion defining at least one groove; and', 'a plurality of actuators connecting the body and the drill string, the plurality of actuators capable of driving the drill string to deviate away from a center of the borehole with a displacement,, 'an active stabilizer comprisingwherein the drill string comprises at least one sliding portion, each capable of sliding within one of the at least one groove defined in the body of the active stabilizer, to constrain relative movement between the drill string and the active stabilizer along an axial direction of the drill string and guide relative movement between the drill string and the ...

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Номер записи: 67
28-01-2021 дата публикации

DIRECTIONAL DRILLING CONTROL SYSTEM AND METHODS

Номер: US20210025238A1
Автор: DiFoggio Rocco, Maurer Hans-Martin, Tabarovsky Leonty
Принадлежит: Baker Hughes, a GE company, LLC

A method for forming a wellbore in an earth formation includes positioning a drill string in a wellbore; the drill string including a bottom hole assembly (BHA) that includes a steering unit, one or more sensors responsive to one or more formation properties, and one or more sensors responsive to the current orientation of the BHA in a wellbore. The method also includes receiving information from the BHA related to the formation properties and information related to a current orientation of the BHA in the wellbore and processing the information using computing device that is either a programmable optical computing device or a quantum computing device. The computing device calculates the position of formation features with respect to current wellbore position in real time and compare the current position to a prescribed path. 1. A system of drilling a wellbore in an earth formation , comprising:a drill string including a bottom hole assemble (BHA) that includes a steering unit;a high speed computing device that is a quantum computing device; anda communication network coupling the BHA to the high speed computing device;wherein the quantum computing device, in operation, performs at least a 2-dimensional model inversion using data received from the BHA and calculates current wellbore position with respect to formation features using the data received from the BHA and compares that position to a prescribed path and provides information that causes the steering unit to perform a geosteering operation and change a course of the BHA during a drilling operation based on the comparison.2. The system of claim 1 , wherein the quantum computing device utilizes qubits to perform the 2-dimensional model inversion.3. The system of claim 1 , wherein the causing includes transmitting a signal to the steering unit that causes the steering unit to move a steering pad.4. The system of claim 1 , wherein the orientation information is received from one or more sensors located on the BHA ...

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Номер записи: 68
28-01-2021 дата публикации

DOWNHOLE ADJUSTABLE BEND ASSEMBLIES

Номер: US20210025239A1
Автор: Clausen Jeffery Ronald, Marchand Nicholas Ryan
Принадлежит: National Oilwell DHT, L.P.

A bend adjustment assembly for a downhole mud motor includes a driveshaft housing, a driveshaft rotatably disposed in the driveshaft housing, a bearing mandrel coupled to the driveshaft, wherein the bend adjustment assembly includes a first position that provides a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel, a second position that provides a second deflection angle, and a third position that provides a third deflection angle, and an actuator assembly configured to shift the bend adjustment assembly between the first position, the second position, and the third position in response to a change in at least one of flowrate of a drilling fluid supplied to the downhole mud motor, pressure of the drilling fluid supplied to the downhole mud motor, and relative rotation between the driveshaft housing and the bearing mandrel. 1. A bend adjustment assembly for a downhole mud motor , comprising:a driveshaft housing;a driveshaft rotatably disposed in the driveshaft housing;a bearing mandrel coupled to the driveshaft;wherein the bend adjustment assembly includes a first position that provides a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel, a second position that provides a second deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel that is different from the first deflection angle, and a third position that provides a third deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel that is different from the first deflection angle and the second deflection angle; andan actuator assembly configured to shift the bend adjustment assembly between the first position, the second position, and the third position in response to a change in at least one of flowrate of a drilling fluid supplied to the ...

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Номер записи: 69
17-02-2022 дата публикации

ROTARY GUIDING TOOL AND TRANSMISSION DEVICE

Номер: US20220049553A1
Автор: DI Qingyun, Liu Qingbo, Yang Yongyou
Принадлежит:

The present invention provides a rotary guiding tool, comprising: a power unit having an output shaft capable of outputting a torque and an offset driving portion capable of outputting a radial force and/or an axial force; a transmission shaft connected with the output shaft; a support shaft connected with the transmission shaft through a rotation structure, wherein a rotation axis of the rotation structure is perpendicular to an axis of the output shaft, the support shaft has an inner wall defining an accommodating cavity and a forward end and a rearward end formed at both ends of the accommodating cavity, a rotation center of the rotation structure is located in the accommodating cavity, and the rearward end of the support shaft is capable of being driven by the radial force output by the offset driving portion; and a drill bit having a drill bit tail end, wherein the drill bit and the forward end of the support shaft are connected to the drill bit tail end. According to the present invention, the rotary guiding tool may improve the whipstocking ability of the drilling tool, and reduce the energy consumption of driving the drilling tool. 110-. (canceled)11. A rotary guiding tool , wherein , comprising:a power unit having an output shaft capable of outputting a torque and an offset driving portion capable of outputting a radial force and/or an axial force;a transmission shaft connected with the output shaft;a support shaft connected with the transmission shaft through a rotation structure, a rotation axis of the rotation structure is perpendicular to an axis of the output shaft, the support shaft hasan inner wall defining an accommodating cavity, and a forward end and a rearward end formed at both ends of the accommodating cavity, a rotation center of the rotation structure is located in the accommodating cavity, and the rearward end of the support shaft is capable of being driven by the radial force output by the offset driving portion; anda drill bit having a ...

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Номер записи: 70
17-02-2022 дата публикации

METHODS AND SYSTEMS FOR IMPROVING CONFIDENCE IN AUTOMATED STEERING GUIDANCE

Номер: US20220049554A1
Автор: COFFEY Scott, CURRAN Drew, GROOVER Austin, LACROIX Adam
Принадлежит:

Systems including a plurality of sensors disposed on a bottom hole assembly (BHA) configured to provide data to a controller, wherein a drill bit is connected to a bottom of the BHA; and a controller configured to: receive a well plan; receive, at a first stationary survey station, locational data and directional data of the BHA from the plurality of sensors; create steering instructions based on the well plan, historical drilling data, and the locational and directional data; generate a predicted future position of the drill bit for each of a plurality of stationary survey stations subsequent to the first stationary survey station assuming implementation of the steering instructions; display the predicted future position of the drill bit for each stationary survey station on a graphical user interface; receive directions to implement, reject, or revise the steering instructions; and execute the received directions. Methods and machine-readable media are also included. 1. A system , comprising:a plurality of sensors disposed on a bottom hole assembly (BHA) configured to provide data to a controller, wherein a drill bit is connected to a bottom of the BHA; and{'claim-text': ['receive a well plan;', 'receive, at a first stationary survey station, locational data and directional data of the BHA from the plurality of sensors;', 'create steering instructions based on the well plan, historical drilling data, and the locational data and directional data of the BHA;', 'generate a predicted future position of the drill bit for each of a plurality of stationary survey stations subsequent to the first stationary survey station assuming implementation of the steering instructions;', 'display the predicted future position of the drill bit for each of the plurality of stationary survey stations on a graphical user interface;', 'receive directions to implement, reject, or revise the steering instructions; and', 'execute the received directions.'], '#text': 'a controller configured ...

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Номер записи: 71
30-01-2020 дата публикации

Rotary Steerable System Having Multiple Independent Actuators

Номер: US20200032587A1
Автор: BIRD Neil, Lines Liam A., Marson Daniel A.
Принадлежит:

A fully rotating bias unit for directional drilling rotates at bit speed while providing proportional control of directional response and steering force. The unit also provides added reliability by having increased redundancy (multiple independently controlled actuators). The unit disposed on a drillstring transfers rotation to a drill bit and has a bore communicating fluid from the drillstring to the drill bit. Directors are disposed on the unit to rotate with it. Each of the directors is independently movable between extended and retracted conditions relative to the unit's housing. Actuators of the unit are in fluid communication between the bore and the borehole or some other low pressure. Each actuator is independently operable to direct communicated fluid from the bore to extend a respective one of the directors toward the extended condition. Meanwhile, venting of the communicated fluid from the directors to the borehole or other low pressure dump allows the respective director to retract toward the retracted condition. 1. A drilling assembly disposed on a drillstring for deviating a borehole advanced by a drill bit , the assembly comprising:a housing disposed on the drillstring and transferring rotation to the drill bit, the housing having a bore communicating fluid from the drillstring to the drill bit;a plurality of directors disposed on the housing, each of the directors being movable between a retracted condition and an extended condition relative to the housing;a plurality of valve members disposed on the housing, each of the valve members moveable between first and second conditions and configured to control fluid communication of the communicated fluid from the bore to a respective one of the directors; anda plurality of actuators disposed on the housing, each of the actuators configured to actuate a respective one of the valve members,each of the actuators being independently operable to actuate the respective valve member between the first and second ...

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Номер записи: 72
24-02-2022 дата публикации

METHODS AND SYSTEMS FOR DRILLING

Номер: US20220056796A1
Автор: Jamieson Angus Lamberton
Принадлежит:

Systems and methods of controlling drilling operations including Sliding With Indexing For Toolface (SWIFT) and Variable Weight Drilling (VWD) techniques. The methods and systems may include systems and devices for controlling the drilling operations, including systems and devices capable of automatically determining drilling parameters and setting operating parameters for drilling in a wellbore. The systems and methods may also determine a change in weight on bit and/or toolface, determine a timeframe for a weight on bit to be delivered to the bit, and/or determine a spindle change to modify the toolface. The systems and methods may also send control signals to apply the spindle change and/or block velocity change to correct any detected or anticipated toolface error. 1. A computer system for controlling drilling operations , the system comprising: a processor;a memory coupled to the processor, wherein the memory comprises instructions executable by the processor for:(a) determining values for a plurality of drilling parameters;(b) responsive to the determined value of the plurality of drilling parameters, setting a plurality of operating parameters for slide drilling in a wellbore;(c) determining an amount of change in weight on bit (WOB) during drilling;(d) responsive to a desired amount of change in WOB, determining toolface;(e) determining a time for WOB to be delivered to the bit;(f) determining a spindle change required to modify the toolface to a toolface target;(g) sending a signal to apply the determined spindle change;(h) sending a signal to apply a block velocity change to correct the anticipated toolface error value when the BV change manifests at the bit; andrepeating step (h) during a time period for the toolface to reach the toolface target.2. The computer system according to claim 1 , wherein the instructions further comprise instructions to repeat steps (a)-(i) a plurality of times during drilling of a wellbore.3. The computer system according to ...

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Номер записи: 73
06-02-2020 дата публикации

ADJUSTABLE DOUBLE BEND STEERABLE DRILLING MOTOR

Номер: US20200040659A1
Автор: Boussi Bachar, Bussy Mohamad
Принадлежит:

An adjustable drilling motor includes a center housing having a connection at each longitudinal end for coupling to a respective bent sub. The connections each subtend a same angle from a centerline of the center housing. The angles are in a same. A bent housing is connected to each end of the center housing. Each housing has a connection at one end for coupling to the center housing. Each bent housing subtends a selected angle. The motor includes makeup rings having a selected thickness disposed between each bent housing and the center housing whereby selected angle magnitude markings on each bent housing correspond to adjacent markings on the center housing when each bent housing is assembled to the center housing to a predetermined torque. 1. An adjustable double bend steerable drilling motor , comprising:a center housing comprising a connection at each longitudinal end for coupling to a respective bent sub, the connection at each longitudinal end subtending a same angle from a centerline of the center housing, the angle at each longitudinal end oriented in a same direction as the angle at the other longitudinal end;a bent housing connected to each longitudinal end of the center housing, each bent housing comprising a connection at one end for coupling to a respective connection on the center housing, each bent housing subtending a selected angle between the respective connection and a connector for coupling the bent housing within a drill string; andmakeup rings having a selected thickness disposed between each bent housing and the center housing whereby selected angle magnitude markings on each bent housing correspond to adjacent markings on the center housing when each bent housing is assembled to the center housing to a predetermined torque.2. The motor of wherein a bend angle in one bent housing is substantially identical to a bend angle in the other bent sub.3. The motor of wherein one bent housing and the other bent housing are affixable to the center ...

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Номер записи: 74
06-02-2020 дата публикации

APPARATUS AND METHOD FOR FORMING A LATERAL WELLBORE

Номер: US20200040683A1
Автор: DELLINGER Gary D., Jr. James H., Taylor
Принадлежит:

An assembly for forming a lateral wellbore includes a mill having a bore and a plurality of blades; a whipstock having an inclined surface for guiding movement of the mill, the mill releasably connected to the whipstock; and a tubing disposed in the bore of the mill and the whipstock. In one example, at least one of the plurality of blades is disposed in a slot formed in the whipstock. 1. An assembly for forming a lateral wellbore , comprising:a mill having a bore and a plurality of blades;a whipstock having an inclined surface for guiding movement of the mill, the mill releasably connected to the whipstock; anda tubing disposed in the bore of the mill and the whipstock,wherein at least one of the plurality of blades is disposed in a slot formed in the whipstock.2. The assembly of claim 1 , wherein the at least one blade is configured to transfer torque to the whipstock when the at least one blade is disposed in the slot.3. The assembly of claim 1 , wherein two blades are in disposed in a respective slot formed in the whipstock for each blade.4. The assembly of claim 3 , wherein a clearance between a first blade in a first slot is smaller than a clearance between a second blade and a second slot.5. The assembly of claim 1 , wherein the mill includes a lug engaged with a lug of the whipstock for transfer of an axial force.6. The assembly of claim 1 , wherein the slot is formed in an attachment section having a flat upper surface.7. The assembly of claim 1 , wherein the bore includes an inlet claim 1 , an angled passage and an offset passage.8. The assembly of claim 7 , wherein the tubing is disposed in the offset passage.9. The assembly of claim 8 , wherein a central axis of the offset passage is located above a central axis of the inlet when the mill is attached to the whipstock.10. The assembly of claim 1 , wherein the tubing is configured to supply fluid to a location below the whipstock.11. The assembly of claim 1 , further comprising a shearable member ...

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Номер записи: 75
19-02-2015 дата публикации

System and methodology for mechanically releasing a running string

Номер: US20150047853A1
Автор: Jose F. Hurtado
Принадлежит: Schlumberger Technology Corp

A technique facilitates selectively disengaging a running string from a lateral tube assembly. The running string comprises a running sub which is engageable with the lateral tube assembly. The running string further comprises a window finder which is positioned to extend into a main bore casing window when the running string is deployed downhole with the lateral tube assembly. Additionally, the running string comprises an extension sub which is coupled to the window finder. The extension sub is selectively extensible to disengage the window finder from the main bore casing prior to release of the running sub from the lateral tube assembly via a release force applied through the running string.

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Номер записи: 76
14-02-2019 дата публикации

Apparatus for providing directional control of bore drilling equipment

Номер: US20190048664A1
Автор: Michael King Russell
Принадлежит: SLIP CLUTCH SYSTEMS LTD

Apparatuses are disclosed for providing directional control of bore drilling equipment. In an embodiment, the apparatus includes a hydraulic pump having an input shaft for receiving an input torque from a drill pipe and being connected in use to a drilling head. In addition, the apparatus includes control arrangement for varying the rate of fluid flow through the pump. The control arrangement includes a closed loop oil-filled system including the hydraulic pump and a main valve. Oil from the pump is routed through the main valve before returning to a pump input. In addition, the control arrangement includes an orifice control system which is operable to control the position of the main valve in response to an input signal from a control processor.

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Номер записи: 77
14-02-2019 дата публикации

Downhole Tool With Multiple Welded Section

Номер: US20190048716A1
Автор: BREUER, DAIGLE Guy, FUNKE, JR. Christopher S., JR. William E., PERRY CARL ALLISON, ROTHSTEIN Richard Matthew
Принадлежит: APS TECHNOLOGY, INC.

A downhole tool is described that includes at least three sections welded together. The downhole tool has a downhole section, an intermediate tool section mounted to the downhole section with a lower weldment, and an uphole section positioned opposite the downhole section mounted to the intermediate tool section with an upper weldment. The downhole tools as described herein include an elongate internal passage that extends from the downhole section to the uphole section through the lower weldment and the upper weldment. The elongate internal passage is sized to receive drilling fluid therethrough. Furthermore, one or more of the downhole section, the intermediate tool section, and the uphole section includes: a) at least one sensor module, b) a cavity, and c) a plurality of bores (holes). In certain embodiments, the downhole tool may be triple combo tool, an acoustic logging tool, or a directional tool, such as a steerable tool. 1. A downhole tool for determining a characteristic of a ground formation during a drilling operation , the downhole tool comprising:a downhole section;an intermediate tool section mounted to the downhole section with a lower weldment;an uphole section positioned opposite the downhole section along an axial direction and mounted to the intermediate tool section with an upper weldment;an elongate passage that extends from the downhole section to the uphole section through the lower weldment and the upper weldment, the elongate passage sized to receive drilling fluid therethrough; andwherein one or more of the downhole section, the intermediate tool section, and the uphole section includes: a) at least one sensor module, b) a cavity, and c) a plurality of bores.2. The downhole tool of claim 1 , wherein the plurality of bores is a first bore claim 1 , a second bore claim 1 , and a third bore claim 1 , wherein the receiver section defines the first bore claim 1 , the isolator section defines the second bore that is aligned with the first bore ...

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Номер записи: 78
25-02-2021 дата публикации

CREATION OF A WINDOW OPENING/EXIT UTILIZING A SINGLE TRIP PROCESS

Номер: US20210054707A1
Автор: Butler Benjamin Luke, Durst Douglas Glenn, East, JR. Loyd Eddie
Принадлежит: Halliburton Energy Services, Inc.

This disclosure may generally relate to drilling operations and, more particularly, to systems and methods for sidetracking an existing well. A bottom hole assembly may comprise a milling assembly, a whipstock coupled to the milling assembly, wherein the whipstock comprises an inclined ramp configured for diverting the milling assembly toward a casing string, and a downhole subassembly coupled to the whipstock, wherein the downhole subassembly comprises a body portion and one or more components on the body portion operable to weaken and/or remove material from the casing string. 1. A bottom hole assembly , comprising:a milling assembly;a whipstock coupled to the milling assembly, wherein the whipstock comprises an inclined ramp configured for diverting the milling assembly toward a casing string; anda downhole subassembly coupled to the whipstock, wherein the downhole subassembly comprises a body portion and one or more components on the body portion operable to weaken and/or remove material from the casing string.2. The bottom hole assembly of claim 1 , further comprising a coupling component disposed at a distal end of the bottom hole assembly claim 1 , wherein the coupling component is operable for attachment to a profile device to secure the bottom hole assembly at a position in a wellbore.3. The bottom hole assembly of claim 1 , wherein the downhole subassembly comprises centralizers disposed on the body portion claim 1 , and wherein the one or more components comprise charges to be detonated.4. The bottom hole assembly of claim 3 , wherein the charges to be detonated comprise shaped charges or linear charges.5. The bottom hole assembly of claim 1 , wherein the downhole subassembly comprises fins disposed on the body portion claim 1 , wherein the one or more components comprise charges to be detonated.6. The bottom hole assembly of claim 5 , wherein the charges to be detonated comprise shaped charges or linear charges.7. The bottom hole assembly of claim 1 , ...

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Номер записи: 79
25-02-2021 дата публикации

Cutting A Sidetrack Window In A Cased Wellbore

Номер: US20210054708A1
Автор: Al-Mousa Ahmed, Al-Ramadhan Ahmed A., Neacsu Marius
Принадлежит:

A sidetrack window is cut in a cased wellbore by disposing a sidetracking assembly within the cased wellbore. A first ball is deployed into a drill string of the sidetracking assembly. The first ball leaves the drill string and lands on a ball seat of a cement retainer to block fluid outlet of the cement retainer. Then, the cement retainer is set and a second fluid outlet of the cement retainer is exposed. Cement is flowed through the drill string to the portion of the cased wellbore downstream of the cement retainer to plug the portion of the wellbore. The whipstock assembly is separated from the cement retainer. A second ball is deployed inside the drill string to land on the seat of the whipstock assembly to block a fluid outlet of the whipstock assembly. The whipstock assembly is anchored in the cased wellbore and the milling system is actuated to begin cutting the sidetrack window. 1. A method comprising:disposing a sidetracking assembly within a cased wellbore, the sidetracking assembly fluidically coupled to a drill string configured to receive fluid from or near a surface of the wellbore, the drill string attached to a milling system, the sidetracking assembly comprising a cement retainer and a whipstock assembly releasably and fluidically coupled to the cement retainer and disposed between the cement retainer and the drill string, the whipstock assembly comprising an anchor activable by fluidic pressure and the cement retainer comprising a packer activable by fluidic pressure;deploying a first ball inside the drill string, the first ball configured to leave the drill string to move past a ball seat of the whipstock assembly to land on a ball seat of the cement retainer to block a first fluid outlet of the cement retainer;with the fluid outlet of the cement retainer blocked, setting the cement retainer in the cased wellbore by applying fluidic pressure at the cement retainer to expand the packer;exposing a second fluid outlet of the cement retainer to ...

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Номер записи: 80
22-02-2018 дата публикации

Directional Drilling Apparatus With An Aligned Housing Bore

Номер: US20180051517A1
Автор: Bell Steven Graham, SAVAGE John Keith
Принадлежит:

A drilling apparatus including a tubular bearing housing, a tilted sleeve removably connected with the bearing housing, and a driveshaft. The bearing housing has a housing axis, a housing bore, and a housing bore axis. The housing bore axis is parallel with the housing axis. The tilted sleeve has a sleeve axis, a sleeve bore, and a sleeve bore axis. The tilted sleeve is connected with the bearing housing and is positioned within the housing bore. The sleeve axis is parallel with the housing bore axis and the sleeve bore axis is oblique to the sleeve axis. The driveshaft is rotatably supported within the sleeve bore. The driveshaft has a driveshaft axis. The driveshaft axis is parallel with the sleeve bore axis. 1. A drilling apparatus comprising:(a) a tubular bearing housing having a housing exterior and defining a housing bore, wherein the housing exterior defines a housing axis, wherein the housing bore has a housing bore axis, and wherein the housing bore axis is parallel with the housing axis;(b) a tilted sleeve removably connected with the bearing housing and positioned within the housing bore, wherein the tilted sleeve has a sleeve exterior and defines a sleeve bore, wherein the sleeve exterior defines a sleeve axis, wherein the sleeve bore has a sleeve bore axis, wherein the sleeve axis is parallel with the housing bore axis, and wherein the sleeve bore axis is oblique to the sleeve axis; and(c) a driveshaft rotatably supported within the sleeve bore, wherein the driveshaft has a driveshaft axis, and wherein the driveshaft axis is parallel with the sleeve bore axis.2. The drilling apparatus as claimed in claim 1 , further comprising a bearing assembly interposed between the tilted sleeve and the driveshaft.3. The drilling apparatus as claimed in wherein an annular space is defined within the sleeve bore between the tilted sleeve and the driveshaft claim 2 , wherein the bearing assembly comprises a plurality of internal bearings claim 2 , and wherein the ...

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Номер записи: 81
15-05-2014 дата публикации

Apparatus and Method for Milling/Drilling Windows and Lateral Wellbores Without Locking Using Unlocked Fluid-Motor

Номер: US20140131036A1
Автор: Blackman Michael J., Butler Justin P., Huval Sidney D.
Принадлежит:

In one aspect, a method of performing a downhole operation is disclosed that in one embodiment may include running a downhole tool including an anchor, a whipstock, a cutting device, and an unlocked fluid-operated motor into a wellbore; wirelessly transmitting signals relating to orientation of the downhole tool from a sensor associated with the downhole tool; orienting the whipstock in response to the transmitted signals and without flowing a fluid through the cutting device; setting the anchor in the wellbore without flowing the fluid through the cutting device; and performing the downhole operation using the motor. 1. A method of performing an operation in a wellbore , comprising:conveying a downhole tool that includes an anchor, a whipstock, a cutting device, and an unlocked fluid-operated motor configured to operate the cutting device into a wellbore;wirelessly transmitting signals relating to orientation of the downhole tool from a sensor associated with the downhole tool;determining orientation of the whipstock in response to the transmitted signals;orienting the whipstock to a desired orientation based on the determined orientation, without flowing a fluid through the cutting device;setting the anchor in the wellbore without flowing the fluid through the motor; andperforming the operation using the cutting device by flowing fluid through the motor.2. The method of further comprising orienting the whipstock and setting the anchor without locking the motor.3. The method of claim 1 , wherein transmitting wireless signals comprises sending signals selected from a group consisting of: acoustic signals; and electromagnetic signals along a member conveying the downhole tool into the wellbore.4. The method of further comprising providing a repeater in the wellbore that receives the transmitted signals claim 3 , conditions the received signals and retransmits the conditioned signals to the surface.5. The method of claim 1 , wherein setting the anchor comprises ...

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Номер записи: 82
15-05-2014 дата публикации

SYSTEM AND METHOD FOR DETERMINING INCREMENTAL PROGRESSION BETWEEN SURVEY POINTS WHILE DRILLING

Номер: US20140131102A1
Автор: BENSON TODD W., CHEN Teddy
Принадлежит: HUNT ADVANCED DRILLING TECHNOLOGIES, L.L.C.

A system and method for surface steerable drilling are provided. In one example, the system receives toolface information for a bottom hole assembly (BHA) and non-survey sensor information corresponding to a location of the BHA in a borehole. The system calculates an amount of incremental progress made by the BHA based on the non-survey sensor information and calculates an estimate of the location based on the toolface information and the amount of incremental progress. The system repeats the steps of receiving toolface information and non-survey sensor information and calculating an amount of incremental progress to calculate an estimate of a plurality of locations representing a path of the BHA from a first survey point towards a second sequential survey point. 1receiving, by a surface steerable system coupled to a drilling rig, toolface information from a bottom hole assembly (BHA) located in a borehole, wherein the toolface information corresponds to a location of the BHA between a first survey point that has been passed and a second sequential survey point that has not yet been reached;receiving, by the surface steerable system, non-survey sensor information corresponding to a state of at least one of the drilling rig, the BHA, or a drillstring coupling the drilling rig to the BHA;calculating, by the surface steerable system, an amount of incremental progress made by the BHA since a previous amount of incremental progress was calculated, wherein calculating the amount of incremental progress is based on the non-survey sensor information;calculating, by the surface steerable system, an estimate of the location based on the toolface information and the amount of incremental progress;causing, by the surface steerable system, at least one drilling parameter to be modified in order to alter a drilling direction of the BHA based on the estimate if the surface steerable system determines that the estimate indicates the drilling direction needs to be altered; ...

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Номер записи: 83
15-05-2014 дата публикации

Apparatus for Keeping a Downhole Drilling Tool Vertically Aligned

Номер: US20140131112A1
Автор: Wenzel Kenneth H.
Принадлежит:

An apparatus for keeping a down hole drilling tool vertically aligned has a tubular body having an axis, an inner bore, at least one perpendicular channel and at least one set of steering elements disposed on opposed sides of the tubular body and engaging the at least one perpendicular channel of the tubular body. The at least one perpendicular channel permits the steering elements to move perpendicularly to the axis of the tubular body and restricts movement parallel to the axis of the tubular body. The first and second steering elements are engaged such that movement of the first or second steering element toward an extended position relative to the tubular body moves the other steering element toward a retracted position relative to the tubular body. Actuators are carried by the tubular body that selectively actuate the steering elements toward the extended position to steer the down hole drilling tool. 1. An apparatus for keeping a down hole drilling tool vertically aligned , comprising:a tubular body having an axis, an inner bore and a at least one perpendicular channel; the at least one perpendicular channel permits the first and second steering elements to move perpendicularly to the axis of the tubular body and restricts movement parallel to the axis of the tubular body; and', 'the first and second steering elements are engaged such that movement of the first or second steering element toward an extended position relative to the tubular body moves the other steering element toward a retracted position relative to the tubular body;, 'at least one set of first and second steering elements disposed on opposed sides of the tubular body and engaging the at least one perpendicular channel of the tubular body, whereinactuators carried by the tubular body that selectively actuate the steering elements toward the extended position to steer the down hole drilling tool.2. The apparatus of claim 1 , wherein the engagement section telescopically engages the corresponding ...

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Номер записи: 84
03-03-2016 дата публикации

Downhole Steering System

Номер: US20160060960A1
Автор: Delgado Miguel Marcel Jose, Hough Steven, Parkin Edward George, Sugiura Junichi
Принадлежит:

A technique facilitates drilling of deviated boreholes. The technique employs a drilling system which may be disposed along a drill string. The drilling system may be used to drill a straight section of a borehole along a straight borehole axis and to also selectively drill a deviated section of the borehole. The drilling system comprises a housing, a bit shaft rotatably mounted in the housing, and an actuator which may be selectively actuated to shift the bit shaft to another position with respect to the straight borehole axis. The actuator is selectively shiftable between an unbiased mode and a biased mode. In the unbiased mode, the bit shaft axis is in a first position with respect to the straight borehole axis during drilling of the straight section of borehole. The actuator may be selectively shifted to the biased mode in which the bit shaft axis is shifted off axis relative to the straight borehole axis to enable drilling of the desired deviated section of the borehole. 1. A system for steering during drilling , comprising: a bearing housing;', 'a bit shaft rotatably mounted in the bearing housing and having a bit shaft axis; and', 'an actuator selectively shiftable between an unbiased mode in which the bit shaft axis is sufficiently aligned with the straight borehole axis to enable drilling of a straight section of the borehole and a biased mode in which the bit shaft axis is shifted off axis relative to the straight borehole axis to enable deviated drilling while the drill string is rotationally stationary., 'a drill string having a drilling system able to drill a straight section of a borehole along a straight borehole axis and able to drill a deviated section of the borehole, the drilling system comprising2. The system as recited in claim 1 , further comprising a stabilizer disposed around the bearing housing claim 1 , wherein the bearing housing comprises a housing of a positive displacement motor.3. The system as recited in claim 2 , wherein the actuator ...

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Номер записи: 85
03-03-2016 дата публикации

METHOD AND SYSTEM FOR DIRECTIONAL DRILLING

Номер: US20160061019A1
Автор: Blangé Jan-Jette, MCCLURE Paul Anthony Donegan
Принадлежит:

A system, method and drill string component for directional drilling of a borehole in a formation is presented. The system includes a rotatable drill string, a rotatable drill bit comprising an intermediate space for receiving drilling fluid from the drill string and at least two nozzles for ejecting the drilling fluid. The system also includes a first rotor section, a flow diverter connected to a downhole end of the first rotor section, and a second rotor section being directly drivable by the drilling fluid and being rotatable with respect to the first rotor section in a second direction opposite to the first direction and at a second rotational speed (ω). In addition, the system includes a control unit for controlling the second rotational speed (ω) of the second rotor section with respect to the first rotor section. 1. A system for directional drilling of a borehole in a formation , the system comprising:a rotatable drill string having a central fluid passage for the passage of drilling fluid;a rotatable drill bit connected to an end of the drill string, the drill bit comprising an intermediate space for receiving the drilling fluid from the drill string and at least two nozzles for ejecting the drilling fluid, each nozzle being in fluid communication with the intermediate space;{'sub': '2/1', 'a first rotor section arranged within the central fluid passage of the drill string, the first rotor being directly drivable by the drilling fluid and being rotatable with respect to the drill string in a first direction and at a first rotational speed (ω);'}a flow diverter connected to a downhole end of the first rotor section for diverting the drilling fluid in a predetermined direction with respect to an axis of the drill string;{'sub': '3/2', 'a second rotor section being directly drivable by the drilling fluid and being rotatable with respect to the first rotor section in a second direction opposite to the first direction and at a second rotational speed (ω); and'}{' ...

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Номер записи: 86
04-03-2021 дата публикации

Rotary Steerable Tool with Independent Actuators

Номер: US20210062585A1
Автор: Brian Doud, Larry D. Chambers, Michael D. Finke, Neelesh V. DEOLALIKAR, Ravi P. NANAYAKKARA
Принадлежит: Halliburton Energy Services Inc

A rotary steerable tool for directional drilling includes a tool body including a flowbore for flowing pressurized fluid therethrough and a plurality of extendable members movably coupled to the tool body for selectively engaging a borehole wall, each extendable member including a piston for moving the extend-able member to an extended position. The tool further includes a pressurized fluid supply flow path to provide fluid pressure from the flowbore to the pistons, and a plurality of linear actuators, each independently actuatable to control fluid pressure from the pressurized fluid supply flow path to a respective piston.

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Номер записи: 87
12-03-2015 дата публикации

IN-LINE ADAPTER FOR A PERFORATING GUN

Номер: US20150068723A1
Автор: Wells Joe Noel
Принадлежит: G&H Diversified Manufacturing LP

A plug and shoot assembly including a perforating gun to perforate a subterranean wellbore, a setting tool to install a plug within the wellbore, and an adapter configured to connect to each of the perforating gun and the setting tool. The adapter includes a single outer housing, the outer housing further including a first end to directly connect to the perforating gun, a second end to directly connect to the setting tool, and an internal passage extending between the first and second ends of the outer housing. In addition, the adapter includes a diode housing disposed within the internal passage and configured to receive a diode member, and an internal contact assembly also disposed within the internal passage. The internal contact assembly is configured to route an electrical signal to cause the setting tool to install a plug within the wellbore. 1. A plug and shoot assembly , comprising:a perforating gun to perforate a subterranean wellbore;a setting tool to install a plug within the wellbore; and a single outer housing, the outer housing including a first end to directly connect to the perforating gun, a second end to directly connect to the setting tool, and an internal passage extending between the first end and the second end of the outer housing;', 'a diode housing disposed within the internal passage and configured to receive a diode member; and', 'an internal contact assembly also disposed within the internal passage;', 'wherein the internal contact assembly is configured to route an electrical signal to cause the setting tool to install a plug within the wellbore., 'an adapter configured to connect to each of the perforating gun and the setting tool, wherein the adapter includes2. The plug and shoot assembly of claim 1 , wherein the diode member includes a first electrical conductor claim 1 , a second electrical conductor claim 1 , and a first contact lead;wherein the diode housing includes a first receptacle and a bore extending from the first receptacle ...

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Номер записи: 88
10-03-2016 дата публикации

Systems and Methods For Drilling Wellbores Having a Short Radius of Curvature

Номер: US20160069138A1
Автор: ZUPANICK Joseph A.
Принадлежит:

Systems and methods are presented for drilling a wellbore with a portion having a short radius of curvature. The systems include a drill assembly having a motor and a tubular housing. An actuator is at least partially disposed within the tubular housing and couples the motor to the tubular housing. The actuator is configured to selectively articulate the drill assembly between a straight configuration and a bent configuration. At least one torque anchor is fluidly-coupled to a trailing end of the drill assembly. Methods are presented for selectively articulating the drill assembly to form the wellbore, including the portion having short radius of curvature. Other systems and methods are presented. 1. A method for drilling a wellbore with a portion having a short radius of curvature , which is less than 21.3 meters , the method comprising:running a drill string within the wellbore, the drill string comprising a drill assembly and at least one anti-torque anchor, the drill assembly having a leading end and a trailing end;engaging a wall of the wellbore with the at least one anti-torque anchor;triggering an actuator disposed within the drill assembly to selectively cant the leading end relative to the trailing end, thereby forming a bent configuration;while in the bent configuration, energizing a high-speed motor associated with the leading end to rotate a drill bit; andwherein the at least one anti-torque anchor, while engaging the wall of the wellbore, substantially restrains a rotational motion of the drill assembly while substantially allowing a longitudinal motion.2. The method of claim 1 , wherein the leading end is canted at least 4 degrees to reach the bent configuration.3. The method of claim 1 , further comprising:supplying pressurized fluid through the drill string to the high-speed motor;dampening variations in fluid pressure with a shock sub to produce a substantially constant weight on the drill bit; andwherein the shock sub is positioned along the drill ...

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Номер записи: 89
27-02-2020 дата публикации

PUSH THE BIT ROTARY STEERABLE SYSTEM

Номер: US20200063497A1
Автор: Hutton Richard
Принадлежит:

A method device, and system is described herein for pushing a rotary drill bit. Pushing the rotary drill bit ears include receiving a target direction in a formation to push the rotary drill bit wile drilling a wellbore in a formation. Pushing the rotary drill bit can also include opening, at a first rotational position of a rotary bit pushing device disposed proximate to the rotary drill bit within the wellborn, a first inlet port of a first flow regulator. Pushing the rotary drill bit can further include closing, after the first rotational position of the rotary bit pushing device the first inlet port. Pushing the rotary drill bit can also include sending, to a second flow regulator of the rotary bit pushing device, a second quantity of drilling fluid. 1. A method for pushing a rotary drill bit , comprising:receiving a target direction in a formation to push the rotary drill bit while drilling a wellbore in a formation;opening, at a first rotational position of a rotary bit pushing device disposed proximate to the rotary drill bit within the wellbore, a first inlet port of a first flow regulator, wherein the first inlet port, when in an open position, allows a first quantity of drilling fluid to move a first deflection device of a plurality of deflection devices of the rotary bit pushing device from a normal position lo an extended position, wherein the first deflection device, when in the extended position, contacts the formation bounding the wellbore;closing, after the first rotational position of the rotary bit pushing device, the first inlet port, wherein the first inlet port, when in a closed position, stops the first quantity of drilling fluid from flowing to the first deflection device and allows the first deflection device to return to the normal position: andsending, to a second flow regulator of the rotary bit pushing device, a second quantity of drilling fluid, wherein the second quantity of drilling fluid flows to the first deflection device when the ...

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Номер записи: 90
09-03-2017 дата публикации

ENERGY DELIVERY SYSTEMS FOR ADJUSTABLE BENT HOUSINGS

Номер: US20170067301A1
Автор: Lange Gustav E., Wheeler Fraser
Принадлежит:

Adjustable drill string housings are described for use in the directional drilling of wellbores, e.g. wellbores for hydrocarbon recovery wells. The adjustable drill string housings permit adjustment of a bend angle in the housings without removing the housings from a wellbore. In some exemplary embodiments, the bend angle can be adjusted by changing the internal stresses in a support member carried by the housings. In other embodiments, the bend angle may be adjusted by causing failure of sacrificial support members carried by the housings, and the failure may be caused by delivering chemicals through a chemical delivery system to the sacrificial support members. Methods of operating the adjustable drill string housings include multi-lateral drilling operations wherein the bend angle is adjusted when a casing window has been detected. 1. An adjustable drill string housing , comprising:an annular member having an upper end and a lower end, the annular member deformable about a bend axis between first and second operational configurations, wherein the annular member maintains an internal preload therein in the first operational configuration such that the upper and lower longitudinal axes are disposed at a first bend angle with respect to one another, and wherein at least a portion of the internal preload is relieved in the second operational configuration such that the upper and lower longitudinal axes are disposed at a second bend angle with respect to one another;at least one support member carried by the annular member, the at least one support member coupled to the annular member to maintain at least a portion of the internal preload in the annular member such that failure of the at least one support member induces the annular member to move to the second operational configuration; and an energy reservoir for the fluid disposed at the remote location;', 'a fluid conduit extending between the energy reservoir and the at least one support member; and', 'an ...

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Номер записи: 91
17-03-2016 дата публикации

Method and system for directional drilling

Номер: US20160076305A1
Автор: Jan-Jette Blange, Paul Anthony Donegan Mcclure
Принадлежит: Shell Oil Co

A method, system and bit steering assembly for directional drilling of a borehole in a formation is presented. The method includes the steps of: providing a drill string having a central fluid passage extending along a longitudinal axis of the drill string for passing drilling fluid to the drill bit. The drill bit has a plurality of nozzles for expelling the drilling fluid, wherein each nozzle is arranged eccentrically with respect to the longitudinal axis. The method includes introducing a bit steering assembly, rotating the drill string, and pumping drilling fluid through the central fluid passage. The drilling fluid activates a first impeller of a first rotor section to rotate in a first direction, and activates a second impeller of a second rotor section to rotate in a second direction opposite the first direction. The method includes adjusting a coupling between the first rotor section and the second rotor section.

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Номер записи: 92
17-03-2016 дата публикации

MANAGING ROTATIONAL INFORMATION ON A DRILL STRING

Номер: US20160076361A1
Автор: Wong David Yan Lap
Принадлежит:

A method for sharing information between components of a subterranean drill string. The method can include receiving, at a controller, data representative of a detected rotational characteristic of a drill string sensed at a first location on the drill string. Further, the method includes calculating, at the controller, a rotational characteristic corresponding to a second location on the drill string based, at least in part, on the detected data, and transmitting data representative of the calculated rotational characteristic to the second location. 1. A method comprising:receiving, at a controller, data representative of a detected rotational characteristic of a drill string sensed at a first location on the drill string;calculating, at the controller, a rotational characteristic corresponding to a second location on the drill string based, at least in part, on the detected data; andtransmitting data representative of the calculated rotational characteristic to the second location.2. The method of claim 1 , wherein:calculating comprises approximating the rotational characteristic corresponding to the second location on the drill string based, at least in part, on the detected data.3. The method of claim 2 , wherein calculating the corresponding rotational characteristic for the second location on the drill string comprises calculating a corresponding rotational characteristic for the entire drill string.4. The method of claim 1 , further comprising:outputting, at the controller, data representative of the corresponding rotational characteristic to a second location on the drill string.5. The method of claim 4 , whereinreceiving, at the controller, data representative of a detected rotational characteristic of a drill string sensed at a first location on the drill string comprises receiving, at the controller, data representative of the detected rotational characteristic of the drill string sensed at a plurality of locations, including the first location, on the ...

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Номер записи: 93
17-03-2016 дата публикации

LTE Transmission Mask Adjustment to Maximize Performance and Reduce Interference

Номер: US20160080108A1
Автор: Alon Ben Ami, Alon Paycher, Shlomit Ben Yakar, Uri Weinrib
Принадлежит: Texas Instruments Inc

System and methods for using channel quality reports to reduce inter-band interference are disclosed. Channel information is received at a first wireless communication device from a second wireless communication device. The first wireless device is operating in a first frequency range, and the second wireless device is operating in a second frequency range. The first frequency range is adjacent to the second frequency range. A channel quality report is generated at the first wireless communication device. The channel quality report indicates that particular sub-bands in the first frequency range have low channel quality. The particular sub-bands are selected using the channel information.

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Номер записи: 94
18-03-2021 дата публикации

Steering Assembly Control Valve

Номер: US20210079729A1
Автор: Hay Richard T., Wheeler Fraser, ZHANG Wei
Принадлежит: Halliburton Energy Services, Inc.

Control valves can allow for a steering assembly of a drill string. An exemplary control valve can include a first valve element including a first orifice, the first valve element being movable by actuation by a motor, and a second valve element including an orifice, wherein flow passing through the first valve element orifice passes through the second orifice and into a flow channel to be in fluid communication with a piston bore to exert pressure against a piston movable within the piston bore, the piston being coupled to a steering pad for applying force against the wellbore wall to steer a direction of the drill string. The first valve element is movable with respect to the second valve element to change flow through the first valve element orifice and the second valve element orifice to modify fluid pressure within the flow channel that is exerted against the piston. 1. A control valve for a steering assembly of a drill string , the control valve comprising:a first valve element including an orifice, the first valve element being movable by actuation by a motor; anda second valve element including an orifice, wherein flow passing through the first valve element orifice passes through the second orifice and into a flow channel to be in fluid communication with a piston bore to exert pressure against a piston movable within the piston bore, the piston being coupled to a steering pad for applying force against the wellbore wall to steer a direction of the drill string,wherein the first valve element is movable with respect to the second valve element to change flow through the first valve element orifice and the second valve element orifice to modify fluid pressure within the flow channel that is exerted against the piston, the first and second valve elements being movable relative to each other to increase or decrease flow toward the piston for controlling actuation of the piston.2. The control valve of claim 1 , wherein the first valve element rotates with ...

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Номер записи: 95
24-03-2016 дата публикации

BI-DIRECTIONAL CV-JOINT FOR A ROTARY STEERABLE SYSTEM

Номер: US20160084017A1
Автор: Finke Michael Dewayne, Winslow Daniel
Принадлежит:

An example downhole apparatus includes a drive shaft with a longitudinal axis, a spherical portion that extends radially from the longitudinal axis, and first and second interfacial surfaces proximate the spherical portion. An outer housing is positioned at least partially around the spherical portion. A radial bearing may be between the spherical portion and the outer housing and coupled to the outer housing. The radial bearing may comprise first and second interfacial surfaces in contact with the respective first and second interfacial surfaces of the drive shaft to transmit or receive torque in corresponding first and second rotational directions. A first axial bearing is coupled to the outer housing and in contact with a first end of the spherical portion to axially secure the drive shaft with respect to the outer housing. 1. A downhole apparatus for drilling operations , comprising:a drive shaft with a longitudinal axis, a spherical portion extending radially from the longitudinal axis, and first and second interfacial surfaces proximate the spherical portion;an outer housing at least partially around the spherical portion;a radial bearing coupled to the outer housing between the spherical portion and the outer housing and comprising first and second interfacial surfaces in contact with the respective first and second interfacial surfaces of the drive shaft to transmit or receive torque in corresponding first and second rotational directions; anda first axial bearing coupled to the outer housing and in contact with a first end of the spherical portion to axially secure the drive shaft with respect to the outer housing.2. The apparatus of claim 1 , wherein the first interfacial surface of the drive shaft is positioned on a first oscillating disk coupled to the drive shaft claim 1 , and the second interfacial surface of the drive shaft is positioned on a second oscillating disk coupled to the drive shaft.3. The apparatus of claim 2 , wherein the first interfacial ...

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Номер записи: 96
12-03-2020 дата публикации

AUTOMATED STEERING OF A DRILLING SYSTEM USING A SMART BOTTOM HOLE ASSEMBLY

Номер: US20200080380A1
Автор: GORRARA Andrew, JOHNSEN Knut-arve, STENGEL Ola
Принадлежит:

A method of drilling a wellbore is described using a BHA including an RSS that comprises an adjustment mechanism movable between first and second configurations to alter a drilling direction of the BHA, BHA sensor(s), and a controller. The method includes drilling, using the BHA, the wellbore with the adjustment mechanism in the first configuration; receiving, by the first controller, real-time data including inclination and azimuth angle data from the BHA sensor(s); determining, by the first controller and based on the real-time data, a relationship between an actual measurement and a target measurement that is associated with a target well path; automatically moving, by the first controller and in response to the determination of the relationship, the adjustment mechanism from the first to the second configuration; and drilling, using the BHA, the wellbore while the adjustment mechanism is in the second configuration. 1. A method of drilling a wellbore using a rotary steerable system that comprises a bottom hole assembly (“BHA”) that comprises an adjustment mechanism , BHA sensor(s) , and a first controller , the method comprising: 'wherein the adjustment mechanism is movable between at least the first configuration and a second configuration to alter a drilling direction of the BHA;', 'drilling, using the BHA, the wellbore when the adjustment mechanism is in a first configuration;'} 'wherein the real-time feedback data includes inclination angle data and azimuth angle data;', 'receiving, by the first controller, real-time feedback data from the BHA sensor(s);'} wherein the actual measurement comprises an actual inclination angle and an actual azimuth angle; and', 'wherein the target measurement comprises a target inclination angle and a target azimuth angle;, 'determining, by the first controller and based on the real-time feedback data, a relationship between an actual measurement derived from the real-time feedback data and a target measurement that is ...

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Номер записи: 97
12-03-2020 дата публикации

Strategic Flexible Section for a Rotary Steerable System

Номер: US20200080381A1
Автор: Hardin, JR. John Ransford
Принадлежит:

A Rotary Steerable System (RSS) includes a flexible collar coupled therein or thereto that permits the stiffness of the RSS to be controlled and permits a desired turning radius to be achieved without sacrificing stability characteristics of the RSS. The flexible collar may be positioned between a steering section and the controller of the RSS. The parameters affecting the geometry, position and stiffness characteristics of the flexible collar and the RSS may be selected strategically to match the requirements of the particular wellbore being drilled. By selecting these parameters strategically, improvements may be achieved related to tool length, bending stiffness, bending stress, torsional stiffness, shear stress due to torsion and increased dogleg severity tolerance. 1. A method of configuring a rotary steerable system , the method comprising:determining a maximum dogleg severity required for drilling a wellbore along a planned wellbore path;determining a combination of parameters for a flexible collar to provide the rotary steerable system with sufficient flexibility to achieve the maximum dogleg severity, the parameters including an outer diameter, an inner diameter, a length and a modulus of elasticity;selecting a material for the flexible collar based on the modulus of elasticity determined; andassembling the rotary steerable system with the flexible collar having the combination of parameters and selected material.2. The method according to claim 1 , further comprising selecting a drill bit having a side cutting efficiency determined to cause the flexible collar to bend a predetermined percentage of its capability at the maximum the dogleg severity along the planned wellbore path claim 1 , and assembling the rotary steerable system with the drill bit.3. The method according to claim 2 , wherein the side cutting efficiency is determined to limit a DLS capability of the rotary steerable system.4. The method according to claim 1 , further comprising selecting a ...

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Номер записи: 98
12-03-2020 дата публикации

Support Device For Tubing String

Номер: US20200080402A1
Автор: Lang Loc Phuc, LIANG Aihua, Steele David Joe
Принадлежит:

A support device may include an upper portion that has a first width and a base portion that has a second width. The support device may be sized to be positioned within a tubing string. The support device may be removable from the tubing string. The support device may include a vertical support that connects the upper portion to the base portion. The vertical support may have a third width and defining a fluid flow path between the vertical support and an inner surface of the tubing string. 1. A support device comprising:an upper portion that has a first width and is sized to be positioned within a tubing string and is removable from the tubing string;a base portion that has a second width and is sized to be positioned within a tubing string and is removable from the tubing string; anda vertical support connecting the upper portion to the base portion and having a third width that is sized to define a fluid flow path between the vertical support and an inner surface of the tubing string.2. The support device of claim 1 , further comprising a coupling surface for coupling the support device to an additional support device.3. The support device of claim 2 , wherein the coupling surface comprises an opening sized to receive a connector rod for coupling the support device to the additional support device.4. The support device of claim 1 , wherein the base portion further comprises an outer edge that defines a recess in the base portion for increasing an area of the fluid flow path between the support device and the inner surface of the tubing string.5. The support device of claim 4 , wherein the width of the vertical support proximal to the upper portion of the support device is sized to be received by a sliding sleeve positioned within the tubing string.6. The support device of claim 1 , wherein the second width of the base portion is larger than the first width of the upper portion and wherein the tubing string has a D-shaped cross-section.7. The support device of ...

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Номер записи: 99
25-03-2021 дата публикации

RADIAL DRILLING LINK TRANSMISSION AND FLEX SHAFT PROTECTIVE COVER

Номер: US20210087884A1
Автор: Bissonnette Harold Steve, Cardon Donald, DuBose Bill, Oettli Mark Callister, Rudnik Alexander
Принадлежит:

Systems and methods for performing a radial drilling operation using a shaft are disclosed. The shaft can be flexible and can be made of a series of links, each of which can have a hexagonal or other suitable shape to impart a torque along the linkage. A cable system can be run through the middle of the links and can be resiliently tensioned to permit a different degree of flexure according to the amount of tension in the cable and resilient member. Accordingly, the shaft can be rigid, selectively permitted to flex, or can be brought back to a straight or at least a less-bent position. 1. A system for deploying a shaft , comprising:a support shaft configured to be operatively coupled to a motor to rotate the support shaft;a motor nose coupled to the support shaft, the motor nose having a first coupling and a second coupling, wherein the first coupling is radially inward of the second coupling;a tool shaft coupled to the first coupling and being configured to rotate with the support shaft and the motor nose, the tool shaft having an outer diameter; anda protective sleeve coupled to the second coupling on the motor nose, wherein the protective sleeve is rigid and has an interior diameter slightly larger than the outer diameter of the tool shaft, wherein the tool shaft is configured to rest within the protective sleeve such that the protective sleeve prevents the tool shaft from flexing, and wherein the protective sleeve is configured to selectively retract into the motor nose to reveal the tool shaft.2. The system of wherein the support shaft defines an axial direction claim 1 , and wherein the first coupling is movable relative to the second coupling along the axial direction.3. The system of claim 1 , further comprising a drill bit coupled to the tool shaft and being configured to rotate under power of the motor.4. The system of wherein the protective sleeve is threadably coupled to the motor nose.5. The system of wherein the protective sleeve is threadably ...

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Номер записи: 100