МЕХАНИЗМ ПЕРЕДАЧИ КРУТЯЩЕГО МОМЕНТА, ПРЕДНАЗНАЧЕННЫЙ ДЛЯ ВНУТРИСКВАЖИННОГО БУРОВОГО ИНСТРУМЕНТА

... 1. Скважинный инструмент, для использования при бурении подземной скважины, содержащий:механизм передачи крутящего момента, включающий в себя внутренний шпиндель, наружный корпус и по меньшей мере одну собачку, выполненную с возможностью радиального перемещения и, за счет этого, избирательного обеспечения возможности и предотвращения относительного вращения между внутренним шпинделем и наружным корпусом.2. Скважинный инструмент по п. 1, в котором радиальное перемещение собачки в зацепление по меньшей мере с одним из наружного корпуса и внутреннего шпинделя обеспечивает возможность относительного вращения между наружным корпусом и внутренним шпинделем в одном направлении, но предотвращает относительное вращение между наружным корпусом и внутренним шпинделем в противоположном направлении.3. Скважинный инструмент по п. 1, в котором радиальное перемещение собачки является линейным относительно по меньшей мере одного из наружного корпуса и внутреннего шпинделя.4. Скважинный инструмент по п.

Устройство для разрушения горной породы

Использование: относится к пневматическим машинам ударного действия и может быть использовано для бурения скважин. Сущность изобретения заключается в том, что в бурильной машине применены два эксцентричных ударника, совершающих как возвратно-поступательное, так и вращательное движение, что позволяет повысить КПД бурильной машины, в центральной части устройства выполнена керноотводящая труба, позволяющая значительно улучшить отвод керна отработанным сжатым воздухом на поверхность, а также применен эксцентричный механизм смещения коронок, позволяющий смещать наружную буровую коронку до диаметров, превышающих наружный диаметр вышележащей обсадной трубы. 4 ил.

Drilling assembly

Double acting hydraulic jack with an end of stroke device

A double-acting hydraulic jack has a cylinder, a piston dividing the cylinder into first and second chambers of variable volume on opposite sides of the piston, and a piston rod with first and second passages opening into the first and second chambers respectively. The piston is moved by supply of pressurized fluid to one passage or the other. An end-of-stroke device is provided to relieve the high pressure applied to the first chamber when the piston comes to the end of its stroke under the action of the pressure fluid supplied to that chamber through the first passage. The device comprises a bore in the piston. The axis of the bore is parallel to the piston axis. The bore contains a small moveable rod urged to project from the bore into the second chamber by high fluid pressure taken from the first passage to move a sliding sleeve in the bore. This sleeve movement is transmitted to urge the small rod and also blocks a third passage leading to the bore from the first passage. The small ...

DRILLING FIXTURE

Boring apparatus

Torque transfer mechanism for downhole drilling tools

A well tool drilling tool can include a torque transfer mechanism with an inner mandrel, an outer housing, and at least one pawl which displaces radially and thereby selectively permits and prevents relative rotation between the inner mandrel and the outer housing. A drill string can include a drill bit, a drilling motor, and a torque transfer mechanism which permits rotation of the drill bit in only one direction relative to the drilling motor, the torque transfer mechanism including at least one pawl which displaces linearly and thereby prevents rotation of the drill bit in an opposite direction relative to the drilling motor.

IMPACT DRILLING TOOL HAVING A SHUTTLE VALVE

TUBING EXPANSION

A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.

DOWNHOLE DRILLING ASSEMBLY WITH MOTOR POWERED HAMMER AND METHOD OF USING SAME

A drilling assembly of a downhole drilling tool for drilling a wellbore is provided. The drilling assembly includes a hammer motor, a shaft, a driver, and a hammer. The drilling assembly positionable about the bottom hole assembly and rotationally driven by fluid flow therethrough. The shaft is operatively connectable to the hammer motor and rotatably thereby. The driver is operatively connectable to the shaft, and includes a cam rotatable with the shaft and a fixed guide having a guide surface thereon. The cam is engageable with the guide surface and axially movable thereabout during rotation thereof. The hammer is operatively connectable to the driver and axially movable therewith, axially movable within the housing independently from axial movement of the housing, and engageable with the bit to impart an impact thereto whereby the bit is hammered.

DOUBLE ACTING HYDRAULIC CYLINDER HAVING A STROKE IT.

DRILLING FIXTURE WITH A ROTARY ECCENTRIC CAM.

STRIKING MECHANISM

IMPACT DRILLING DEVICE

УДАРНЫЙ МЕХАНИЗМ

Ударный механизм, включающий первичную сторону; вторичную сторону; по меньшей мере один элемент трансмиссии приводного блока; направляющую элементов трансмиссии приводного блока; ударный импактор и ударную наковальню; в котором направляющая элементов трансмиссии приводного блока представляет собой кольцевую направляющую вокруг продольной оси ударного механизма; направляющая элементов трансмиссии приводного блока включает по меньшей мере один зубчатый участок, состоящий из участка подъема и ведущего участка; по меньшей мере один зубчатый участок представляет собой в основном одну длину пилообразной волны; участок подъема имеет наклон в сторону от основания направляющей элементов трансмиссии приводного блока; ведущий участок представляет собой секцию зубчатого участка, которая совершает крутой поворот к основанию направляющей элементов трансмиссии приводного блока; первичная сторона ротационно изолирована от ударного импактора; ударная наковальня присоединена к вторичной стороне или образует ...

Apparatus of contact of fluxed solids and gas

PROCEDE DE FORAGE DU SOL AINSI QU'UNE FOREUSE ACTIVEE POUR REALISER DE TELS FORAGES

L'INVENTION CONCERNE UN PROCEDE DE FORAGE A L'AIDE D'UN TREPAN 12 QUI EST RENDU SOLIDAIRE D'UNE TIGE DE FORAGE 10 ET COMPREND LES ETAPES QUI CONSISTENT A FAIRE EN SORTE QU'UN TREPAN 12 FIXE A L'EXTREMITE D'UNE TIGE DE FORAGE 10 SOIT ENTRAINE EN ROTATION AUTOUR DE L'AXE DE LA TIGE DE FORAGE 10 ET QU'UN POIDS EXCENTRIQUE 16, 18 SOIT ENTRAINE EN ROTATION PAR DES MOYENS SITUES DANS LE TREPAN POUR COMMUNIQUER AU TREPAN 12 UNE ACTION DE MARTEAU. LE TREPAN 12 COMPREND UN DISPOSITIF D'ENTRAINEMENT COMPRENANT DEUX ARBRES DE TRANSMISSION OPPOSES 26 QUI SONT DISPOSES TRANSVERSALEMENT PAR RAPPORT A L'AXE DE LA TIGE DE FORAGE, DES MOYENS D'ENTRAINEMENT DES ARBRES 28, 40 ET UNE COURONNE DE COMMINUTION DES ROCHES 16, 18 QUI EST MONTEE DE MANIERE EXCENTRIQUE SUR CHACUN DES ARBRES 26.

REVERSE CIRCULATION CLUSTER DRILL

The present invention relates to a reverse circulation cluster drill. To this end, the present invention comprises: an air tank part detachably combined with a punch rod of a punch; a hammer casing part combined with a casing body including a hammer part, sliding and reciprocating, in the bottom of the air tank part; a bit casing part of which a bit body, including a bit sink, is combined with the bottom of the casing body; and an air backflow preventing part placed between the upper part of the hammer part and the air tank part. Therefore, since a backflow of air is prevented in a procedure of returning the bit sink of the bit casing reversely by moving down in a punch procedure, the discharge of earth and sand to the outside is temporarily stopped, and therefore, punch work is easily performed even on the mud flat regardless of types of the ground. COPYRIGHT KIPO 2016 ...

DEVELOPMENT METHOD FOR AN INLET WELL USING A SMALL ARTICULATED EXCAVATOR TO REDUCE THE TIME AND COSTS FOR EXCAVATING A WATER COLLECTION HOLE TRANSVERSELY FROM A VERTICAL WELL

PURPOSE: A development method for an inlet well is provided to prevent the increase of construction time and costs due to obstacles by using a small articulated excavator capable of freely changing the advancing direction during excavation. CONSTITUTION: A development method for an inlet well comprises the steps of: excavating a vertical well(10), excavating a water collection hole(40) connected to the vertical well using an excavator(100) advancing in a first direction, extending one or more of horizontal hydraulic feet to apply pressure to the inner wall of the water collection hole to change the excavator to a second direction different from the first direction, and continuously excavating the water collection hole with the excavator advancing in the second direction. COPYRIGHT KIPO 2013 ...

BORING APPARATUS AND EXCAVATION METHOD FOR DOWN-THE-HOLE HAMMER METHOD

PROBLEM TO BE SOLVED: To efficiently discharge slime by combining a discharge using an air lift with discharge using an auger screw, in a down-the-hole hammer method. SOLUTION: A down-the-hole hammer body and a casing which is mounted outside an upper screw thereof and which can ascend/descend by means of a cylinder attached to the side surface or lower part of a rotator, are provided, so that the casing and the hammer can be made to individually ascend/descend, and so that the efficiency of the discharge of the slime can be enhanced. COPYRIGHT: (C)2005,JPO&NCIPI ...

VIBRATION/ROTATION TYPE EXCAVATOR

PURPOSE: To apply fine vibration impact force, rotating force, and pressure advance force and perform an efficient excavation by transmitting the fine vibration by a hydraulic servo cylinder and the rotation by a hydraulic motor to an excavating tool fitted to a main shaft. CONSTITUTION: A connecting tube 8a and an excavating tool 8b are fitted to the tip of a main shaft 1, and a hydraulic servo cylinder 2 and a hydraulic motor 6 are operated. Strong fine vibration is generated by the hydraulic servo cylinder 2, and the main shaft 1 is rotated via gears 7, 5 at the same time. A frame 9 is moved downward, the fine vibration impact, rotation, and pressure advance of the excavating tool 8b at the tip of the main shaft 1 are concurrently and multiplicatively applied to excavate the ground. Fine vibration is transmitted to the excavating tool 8b at the tip of the main shaft 1 from fitting plates 3, 3 fixing both rods of the hydraulic servo cylinder 2 via rotary thrust bearings 4a, 4b. When the ...

УСТРОЙСТВО ДЛЯ СООРУЖЕНИЯ ЛУЧЕВЫХ ДРЕНАЖНЫХ СКВАЖИН ИЗ ГОРНЫХ ВЫРАБОТОК

Использование: изобретение относится к горной промышленности, в частности к устройствам для проведения лучевых дренажных скважин. Сущность изобретения: устройство для сооружения лучевых дренажных скважин из горных выработок оснащено следящим устройством, выполненным в виде герметичного сосуда, имеющего шкалу и подвижный элемент с указателем, гидравлически связанного с гидроцилиндрами двойного действия исполнительных механизмов и вращательно-подающего механизма, что позволяет полностью в любой момент работы механизмов определять их положение в процессе осуществления технологических операций, а также позволяет дистанционно контролировать скорость бурения лучевых дрен. 1 з.п. ф-лы, 1 ил.

Устройство для ударно-вращательного бурения скважин

Способ ударно-вращательного бурения и устройство для его осуществления

Механический ударный бур

МЕХАНИЧЕСКИЙ УДАРНЫЙ БУР, включающий корпус, приводной вал. породоразрушающий инструмент и ударный ме.ханизм, содержащий подпружиненный ведомый вал, связанный с ударником, наковальню, конический ролик и винтовой кулачок, отличающийся тем, что, с целью увеличения ударной мощности бура, ведомый вал соединен с приводным валом с возможностью разворота на угол, соответствующий угловому смещению оси конического ролика в плоскости, перпендикулярной оси бура на величину, не меньщую, чем половина угла между осевыми плоскостями бура , касательными к поверхности конического ролика. i (Л оо сд ...

Устройство для образования горизонтальных скважин

Downhole drilling assembly with motor powered hammer and method of using same

A drilling assembly of a downhole drilling tool for drilling a wellbore is provided. The drilling assembly includes a hammer motor, a shaft, a driver, and a hammer. The drilling assembly positionable about the bottom hole assembly and rotationally driven by fluid flow therethrough. The shaft is operatively connectable to the hammer motor and rotatably thereby. The driver is operatively connectable to the shaft, and includes a cam rotatable with the shaft and a fixed guide having a guide surface thereon. The cam is engageable with the guide surface and axially movable thereabout during rotation thereof. The hammer is operatively connectable to the driver and axially movable therewith, axially movable within the housing independently from axial movement of the housing, and engageable with the bit to impart an impact thereto whereby the bit is hammered.

Downhole drilling assembly with motor powered hammer and method of using same

Drilling assembly

A drilling assembly comprises a rotatable member (8) having a drilling portion (3) for drilling a hole and a portion (5) for enlarging the hole. Both portions comprise a number of chisel blades having a percussion operation. The chisel blades on the hole enlarging portion are retractably mounted and angularly offset from the member. If required a further reaming drilling unit (4) may be provided. By means of the drilling assembly it is possible to drill a hole which is of greater diameter than the casing through which the drilling assembly has been run enabling a smaller casing sequence to be achieved. ...

EARTH DRILL

Improvements in or relating to rotary rock drills

... 709,308. Rotary rock drills. CEMENTATION CO., Ltd. Dec. 22, 1952 [Jan. 1, 1952], No. 59/52. Class 85 On rotation of the roller bits of a rotary rock drill, said bits actuate a mechanism to impart blows to said bits either directly or indirectly. In one embodiment, to a drill pipe 3 is screwed an upper component 4 of a drill body 1, and within a recess of non- circular section in the component 4 is slidably positioned a complementary portion 12, of a sleeve 11 which has a lower annular portion 9 carrying gear teeth 16 to engage with gear teeth 17 formed on bits 8 rotatably mounted on a second component 5 of the body 1. The component 5 surrounds the portion 9 of the sleeve 11 and is caused to abut against the component 4 by a compression spring 15 acting between the boss 2 of component 4 and a cap 14 on a tubular extension 13 of the sleeve 11, a shoulder 10 of which bears against the component 5. The contacting surfaces of the components 4, 5 are formed as annularly-disposed wedge-like teeth ...

WELL PIPE SWAGE

... 1373419 Tube expanders; sizing and restoring HOUSTON ENGS Inc 7 Jan 1972 [3 Sept 1971] 898/72 Headings B3Q and B3J A well-pipe drift comprises a knocker for connection to a running tool and carrying a swage having upwardly and downwardly facing shoulders, means on the knocker lowerable to engage means on the swage for jarring the swage downwardly upon rotation -of the knocker relatively to the swage, and similarly means for jarring the swage upwardly upon relative rotation. As shown, the knocker 14 has upper and lower teeth 27, 29 opposed to similar teeth 28, 30 in the swage 10. To remove an obstruction (R), Fig. 1 (not shown), in the downward direction, the knocker 14 is further lowered to engage teeth 29, 30 and jars the swage as its teeth 29 climb over those 30 on the swage during rotation of the knocker. Teeth 27, 28 are engaged for upward jarring when shoulder 24A encounters the obstruction.

Device for simultaneously casing a hole while drilling

Percussion device

A percussion device that includes: - an input side; - an output side; - at least one drive transmitter; - a drive transmitter pathway; - a percussion impactor; and - a percussion anvil; where: the drive transmitter pathway is a circumferential pathway around a longitudinal axis of the percussion device; - the drive transmitter pathway includes at least one tooth section including a lift section and a lead section; - the at least one tooth section is essentially one wavelength of a sawtooth wave; - the lift section is inclined away from a base of the drive transmitter pathway; - the lead section is a section of the tooth section which abruptly returns to the base of the drive transmitter pathway; - the input side is rotationally isolated from the percussion impactor; - the percussion anvil is attached to, or forms part of, the output side; - the percussion impactor includes an impact end and a force input end which are longitudinally opposite terminal ends of the percussion impactor; and ...

Drilling motor with one-way rotary clutch

A drilling motor assembly can include a housing, a shaft, and a pawl which selectively engages a recess, the pawl having an axis of rotation and a generally planar engagement face which engages a generally planar engagement face of the recess when relative rotation between the housing and the shaft is prevented. The engaged engagement faces can be oblique relative to a radius extending from the axis of rotation to the engaged engagement faces. A method of drilling a wellbore can include flowing a fluid through a drilling motor assembly, thereby rotating a shaft relative to a housing, and rotating the housing, thereby engaging a pawl with a recess and preventing relative rotation between the housing and the shaft, the pawl and recess each having a generally planar engagement face, whereby the engaged engagement faces prevent relative rotation between the shaft and the housing.

DEVICE FOR SIMULTANEOUSLY CASING A HOLE WHILE DRILLING

A driving device for installing a pipe or casing, without the use of hydraulic or pneumatic means, by capturing the rotational motion of the drill string. The driving device is placed at the top end of the pipe being (42) installed and the drill string (2) passes through the center of the device. The drill string freely rotates, advances or retracts within the driving device, until the driving device is attached (4) to the drill string when required. When the driving device is attached to the drill string, the rotational force of the drill string and any downward force applied to the drill string are captured, and used to install the pipe. The driving device uses the rotation of the drill string to impact a blow to the pipe, driving the pipe downward. The driving device uses any downward force applied to the drill string to maintain downward pressure on the pipe.

ROTARY BORE HOLE AIR HAMMER DRIVE MECHANISM

SINKER DRILL

УДАРНОЕ БУРИЛЬНОЕ УСТРОЙСТВО

A downhole apparatus connected to a workstring within a wellbore. The workstring is connected to a bit member. The apparatus includes a mandrel operatively connected to a downhole motor mechanism, an anvil member operatively formed on the bit member, the anvil member being operatively connected to the mandrel, a radial bearing housing unit operatively connected to the workstring, with the radial bearing housing unit being disposed about the mandrel, and a hammer member slidably attached to the radial bearing housing unit.

ПРИСТРІЙ ДЛЯ БУРІННЯ СВЕРДЛОВИН

Пристрій для буріння свердловин містить корпус, з'єднаний жорстко з верхнім і з можливістю повороту нижнім перехідниками, пружний елемент, вал, втулку і ущільнювальні кільця. Пружний елемент виконаний у вигляді розрізаної по твірній труби, яка своїми виступами зафіксована в пазах верхнього і нижнього перехідників. Ширина поздовжнього перерізу пружного елемента є обмежувачем кута повороту нижнього перехідника відносно верхнього. Вал жорстко закріплений нарізним з'єднанням з верхнім перехідником, а нижнім кінцем вал з ущільнювальним кільцем встановлений по ковзній посадці в кільцеву виточку нижнього перехідника. Останній утримують з можливістю прокручування, втулкою, яку жорстко з'єднують з корпусом пристрою.

Process of execution of drillings

DEVICE OF END OF THE ROAD FOR HYDRAULIC ACTUATING CYLINDER

Down the hole drilling method using the TBM

TUBING EXPANSION

A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.

ИСПОЛЬЗОВАНИЕ НАБУХАЮЩИХ МАТЕРИАЛОВ ДЛЯ РЕГУЛИРОВАНИЯ ПОТОКА ТЕКУЧЕЙ СРЕДЫ

... 1. Узел клапана, содержащий трубопровод для прохождения текучей среды при открытом узле клапана, набухающий материал, способный находиться в расширенном состоянии и нерасширенном состоянии и расположенный так, что набухающий материал способен расширяться для ограничения потока текучей среды через трубопровод при контакте материала с текучей средой первого типа.2. Узел клапана по п.1, в котором набухающий материал выполнен в виде непрерывного кольца, проходящего вокруг металлической оправки.3. Узел клапана по п.2, в котором металлическая оправка заключает в себе набухающий материал и способна направлять расширение набухающего материала в радиальном направлении.4. Узел клапана по п.3, в котором набухающий материал при расширении изолирует и блокирует трубопровод.5. Узел клапана по п.4, в котором трубопровод проходит в эксплуатационную колонну насосно-компрессорной трубы ствола скважины.6. Узел клапана по п.5, в котором ствол скважины включает в себя обсадную колонну.7. Узел клапана по п.1 ...

ВИБРОБУР

Изобретение относится к оборудованию для бурения глубоких скважин. Обеспечивает повышение эффективности бурения глубоких скважин роторным способом. Вибробур включает корпус для присоединения к бурильной колонне, внутри которого при помощи ниппеля и шпонки установлен шток, связанный с долотом. Вибробур снабжен подпружиненным относительно корпуса турбобуром, имеющим вал с выступами в его нижней части, сопрягаемыми с выступами, выполненными в верхней части штока. Турбобур снабжен центратором и направляющей для взаимодействия с направляющей, выполненной на корпусе вибробура. Между центратором и корпусом вибробура установлено уплотнение. 1 ил.

Способ ударного бурения

Изобретение относится к технике разрушения горных и строительных пород и позволяет повысить эффективность бурения за счет уменьшения энергозатрат на переизмельчение пород в центральной части забоя. Способ включает передачу буровому инструменту периодических ударов и поворот инструмента после каждого удара на определенный угол. После нанесения первого удара образуется след 1, поражающий полный диаметральный размер забоя 2. Затем наносят второй удар по забою 2, образующий след 3, поражающий только периферийную часть забоя. Далее наносят удар, аналогичный первому. Удары повторяют в указанной последовательности. Причем проекция следа 3 удара на горизонтальную плоскость, поражающего периферийную часть забоя 2, составляет не менее проекции следа 1 удара, поражающего полный диаметр забоя. Ограничение снизу следа 3 зависит от свойства разрущаемой породы, режима разруще- ния и геометрии инструмента и должно быть таким, чтобы ближний конец 4 следа 3 к центру забоя 2 разрушил породу в этой части , ...

Cam-operated impact tool

An impact tool 33 for use in a well bore provides a hammer action through reciprocal movement of a cam 40 within a spring mechanism 58. In an embodiment a drill bit 22 is included to provide an impact drilling tool which requires minimum weight on bit 22 to operate. The impact tool can therefore be run on coiled tubing and wireline.

Improvements in or relating to a rotary impact drill

... 630,049. Well boring equipment. STEVENS, A. H. (Snyder Oil Tool Corporation). Aug. 20, 1947, No. 23072. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 20, 1947.] [Class 85] A rotary impact drill has secured to a bit 17a cam 28 engaging another cam 31 secured to a perforated sleeve capable of freely rotating about a continuously rotating drill stem 11. Rotation of this sleeve is impeded by vanes 37 projecting into the drilling fluid 19 so that differential rotation occurs between the two cams so that the tube 36 rises to drop suddenly so imparting a blow to the bit. The vanes may be either continuous or interrupted vertical strips, right or left helices or rows of rods. The upper cam can be spring - biassed and the sleeve 37 secured to the lower cam which is free to rotate, the upper cam having a splined connection with the drill stem. Rubber or metal bushes secured either to the drill stem or the sleeve 36 position the upper end of the sleeve.

Improvements in or relating to apparatus for counter-current contacting of fluidizedsolids with vaporous and/or gaseous materials

... Apparatus for counter-currently contacting a gas or vapour with a fluidized solid comprises a tower divided into superimposed chambers by perforated plates 6-9 through which the gas ascends, downcomers 11-13 placed alternatively at opposite sides of the tower and each having its entrance above the level of the discharge end of the downcomer at the opposite side of the same chamber thereby causing a bed of fluidized solid to flow across each chamber, and one or more series of vertical or inclined baffles 14, 15 arranged parallel to one another across the path of the flowing solid. When several rows of baffles 15 are used, they may be staggered across the path of the gases. The baffles may be rotatable about horizontal shafts coinciding with their longitudinal axis 14a or one edge 15a and mechanism (not shown) may be provided for varying their inclinations in unison. The apparatus is applicable to catalytic reactions such as the cracking of hydrocarbons, and to the separation ...

DRILLING EQUIPMENT, CHISEL HIEFUER AS WELL AS PROCEDURE FOR BORING

BOHRGERAET, MEISSEL HIEFUER SOWIE VERFAHREN ZUM BOHREN

Tubing Expansion

System and method for drilling hammer communication, formation evaluation and drilling optimization

A system and method are provided for producing controlled vibrations within a borehole. In one example, the system includes an encoder plate, an anvil plate, and a movement mechanism configured to enable rotational and translational movement of the encoder plate relative to the anvil plate to allow the encoder plate to repeatedly impact the anvil plate to create vibrations. The system also includes a vibration control mechanism configured to control an amplitude of the vibrations.

EARTH DRILL WITH OPPOSED DRIVE SHAFTS

ACTIVATED EARTH DRILL

ABSTRACT OF THE DISCLOSURE The invention relates to a method of earth drilling by means of a drill bit which is attached to a drill rod and includes the steps of rotating the bit on the drill rod axis and rotating an eccentric weight by means in the bit to impart a hammer action to the bit. The drill bit includes a drive arrangement having two opposed drive shafts which are transverse to the drill rod axis, means for driving the shafts and a rock comminuting cutter which is eccentrically mounted on each of the shafts.

APPARATUS FOR VIBRATING A PIPE STRING IN A BOREHOLE

An apparatus for vibrating a pipe string in a borehole is provided, the apparatus comprising means for generating at a downhole location lingitudinal vibrations in the string in response to flow of fluid through the interior of said string, said means for generating vibrations comprising a hydraulic motor of the moineau type having a stator part and a rotor part, the stator part forming part of the string and the rotor part being coupled to a percussion device which longitudinally moves the rotor part relative to the stator part in an oscillating manner during the course of each rotation of the rotor part relative to the stator part. The percussion device consists of a pair of percussion rings having mating surfaces which have in circumferential direction a rugged profile, one of said rings being connected to said rotor part, the other ring being connected to said stator part.

DRILLING TOOL BEARING AND DRIVETRAIN ASSEMBLY

A downhole drilling motor, system, and method for using same are disclosed. A downhole drilling motor can include a power section stator having a first end, a second end, an internal cavity passing therethrough. The downhole drilling motor can further include a rotor assembly positioned and fully encased in the internal cavity. The rotor assembly includes a power section rotor, a drivetrain operably coupled to the power section rotor and a bearing set. The power section rotor is positioned at the first end within the internal cavity of the power section stator. The power section rotor, the drivetrain, and the bearing set are fully encased in the internal cavity of the power section stator. Additional apparatuses, systems, and methods are disclosed.

TOOL FOR DRILLING PERCUSSION PROVIDED With a SHOE-NOSED SHELL WITH VALVE

DRILLING APPARATUS

Device for facilitating release of stuck drill collars

A device is disclosed which is to be incorporated into a drill string used for drilling in subterranean formations. The device includes a first member concentrically mounted with drill pipes disposed above the device and a second member concentrically mounted with drill collars or drill pipes disposed below the device. An intermediate member connects the first and second members and a retainer member maintains the device in its first operative position wherein the entire device is concentric with the longitudinal axis of the drill string. In the first operative position of the device rotation can be transmitted from the first member to the second member and the device acts as an ordinary member of the drill string. The first, second and intermediate members are configured to be capable of occupying a second operative position relative to one another wherein the first member is off-center relative to the second member and wherein the first member does not rotate the second member. The device ...

SYSTEM AND METHOD FOR DUAL TELEMETRY NOISE REDUCTION

A system and method for reducing noise from a signal during drilling of a well. A system for generating mechanical vibrations may generate acoustic signals for communicating information, and may induce pressure signals in a drilling mud communicating information. A noise reduction system may receive both the acoustic and pressure signals and phase shift one set of signals to adjust for a time difference between the two. The system may also sample the signals and may overlay the signals or the sampled signals and cancel the noise from the received signals. 1. A system with dual telemetry noise reduction for drilling , the system comprising:a mechanical vibration generation system adapted to generate a plurality of acoustic signals comprising data associated with drilling of a well borehole, wherein, responsive to the plurality of acoustic signals; anda noise reduction system adapted to receive the plurality of acoustic signals and a plurality of pressure signals induced in drilling mud located in the borehole, with the plurality of pressure signals corresponding to the plurality of acoustic signals and offset therefrom by a first time period, compare the plurality of acoustic signals and the plurality of pressure signals, determine the first time period, and cancel noise from the plurality of acoustic signals or the plurality of pressure signals.2. The system according to wherein the noise reduction system is further adapted to use the first time period to shift the plurality of pressure signals and then compare the shifted plurality of pressure signals to the plurality of acoustic signals.3. The system according to wherein the noise reduction system is further adapted to use the first time period to shift the plurality of acoustic signals and then compare the shifted plurality of acoustic signals to the plurality of pressure signals.4. The system according to wherein the mechanical vibration generation system is further adapted to generate a constant frequency ...

Percussion Drilling Assembly Having Erosion Retarding Casing

A percussion drilling assembly for drilling through earthen formations and forming a borehole. In some embodiments, the drilling assembly includes a retainer sleeve having an upper end with an outer diameter and a tubular casing engaging the retainer sleeve. The tubular casing includes a first, second, and third tubular portion. The first tubular portion engages the upper end of the retainer sleeve at a first end having an outer diameter substantially equal to the outer diameter of the retainer sleeve. The second tubular portion is connected to the first tubular portion at a first end and has a second end with an outer diameter that differs from the outer diameter of the retainer sleeve. The third tubular portion is coupled to the second tubular portion. The first and third tubular portions each have a length configured to enable gripping of the tubular casing using tongs.

SYSTEM AND METHOD FOR TRANSMITTING INFORMATION IN A BOREHOLE

Systems and methods for producing controlled vibrations within a borehole. In one example, the system includes a movement mechanism and a controller. The movement mechanism is configured to enable translational movement of a first surface relative to a second surface to allow the first surface to impact the second surface to produce a plurality of beats. The frequency and amplitude of the beats may be selectively controlled by suppressing or dampening the beats. The controller is configured to selectively control an amplitude or frequency of the beats to encode information therein, where the amplitude of a beat may be selectively controlled by dampening or suppressing the impact of the first surface and the second surface.

Method and device for drilling holes in soil or rock material

The invention relates to a method and device for the drilling, in particular the percussive drilling or rotary percussive drilling of holes ( 9 ) in the ground or in rock, a bore hole ( 9 ) being formed by a drill bit ( 1 ) that is mounted on a drill pipe ( 3 ), by a percussive and/or rotary movement. Several drill points ( 2 ), which can be coupled to the drill pipe ( 3 ) and driven independently of one another, are provided on the drill bit ( 1 ). According to the invention, the drill points ( 2 ) can be uncoupled from their rigid coupling to the drill pipe ( 3 ) upon completion of the drilling process and can be displaced towards the centre of the bore hole ( 9 ), thus permitting the entire drill bit ( 1 ) together with the drill points ( 2 ) and the drill pipe ( 3 ) to be simply and reliably removed upon completion of the bore hole ( 9 ).

BORING APPARATUS AND METHOD

DOWNHOLE WIRELINE TOOL

The present invention relates to adownhole wireline tool (1) for performing a machining operation in a well having a top, such as milling, the downhole wireline tool having a longitudinal axis, a first end configured to be connected to a wireline and a second end forming a front of the tool facing away from the wireline along the longitudinal axis, the downhole wireline tool comprising a tool housing (12), a holding section (7) having projectable parts configured to prevent a part of the downhole wireline tool from moving in a direction towards the top, a machining tool (9) arranged in the front of the tool, and a rotation unit (10) for rotating the machining tool, wherein the downhole wireline tool further comprises an oscillation device (11) having a rotational stationary part (14) being connected with the rotation unit and a rotational part (15) being connected to the machining tool, the oscillation device being configured to provide an oscillating movement of the machining tool by oscillating ...

Устройство для бурения

SCHLAGEINSATZ FUER TIEFBOHRUNGEN

Downhole mechanical percussive hammer drill assembly

Impact tool

TOOL AND PROCEDURE FOR BORING

MECHANICAL TRIGGER ARRANGEMENT

The present invention relates to an arrangement for the repeated mechanic al triggering of various types of downhole equipment, the arrangement compri sing a spring element (4) and a string section (1 ). The invention is charac terized in that the arrangement comprises a rotary sleeve (7), with turning faces (1 ', 1 "; 2', 2") being provided between the string section (1 ) and the rotary sleeve (7), one set of the turning faces (1 ', 1 ") having an equ ivalent slope and the other set of turning faces (2', 2") having a different slope, the arrangement being configured to force a relative rotary movement between the string section (1 ) and the rotary sleeve (7) as a premise for an axial movement, with the amount of rotary movement of the rotary sleeve ( 7) depending on the force being applied to the arrangement, the stiffness of spring (4), as well as the slope of the turning faces (1 \ 1 "; 2', 2"), th e arrangement being configured to release the energy stored therein when the rotary sleeve ...

WELL JAR

A well jar having an elongated body with an axial passageway and threaded connections for assembly into a string of well pipe. The body has a tubular mandrel slideably mounted within a tubular barrel with the annulus therebetween exposed to well fluid. Fluid seals in the annulus provide an isolated chamber containing a latch whereby the mandrel and barrel are selectively released for delivering an impact to the wellpipe. The improvement to the jar comprises a plurality of elongated, resilient vibration snubbers integrally carried by the mandrel and aligned longitudinally in the annulus between the mandrel and the barrel. The snubbers slideably engage the barrel throughout its telescopic movement along the mandrel. The snubbers are circumferentially spaced apart about the mandrel with the intervening spaces forming flow channels in the annulus to accomodate well fluid flows when the jar is mounted in the string of well pipe being rotated in the well bore. In another embodiment, as a subcombination ...

DOWNHOLE AUXILIARY DRILLING APPARATUS

The present invention provides a downhole auxiliary drilling apparatus, including an impact energy generator capable of converting the energy of the drilling fluid to the axial impact energy, and an impact energy distributor capable of redistributing the impact energy generated by the impact energy generator to convert the axial impact force into a combined impact force, which provides the drilling bit with a high-frequently changing combined impact force, thus greatly improving the rock breaking efficiency and the rate of penetration of the drilling tool. The downhole auxiliary drilling apparatus is further provided with a shock-absorbing and torque-stabilizing device arranged between the impact energy generator and the impact energy distributor, which can reduce the axial vibration of the drilling tool and the damage on the drilling bit, and greatly extend the lifetime of the drilling bit.

BICONE A MONOLAME PERCUTANTE

Dispositif permettant d'utiliser une planche 1, un tube 1 à éléments de percussion numérotés de 2 à 6, incorporés à ce tube. Ce dispositif permet, par l'utilisation de roulettes 10 placées en périphérie, d'élever la masse percutante 6 de bas en haut ; une roulette comporte sur son axe une demi-lune canelée 14 actionnant la crémaillère 15, et l'autre roulette, une came 8 adaptée sur son axe, actionnant un ergot 7 dans un mouvement de bas en haut ; la masse percutante 6 frappe lors de sa chute, vers le bas, la lame percutante 9 ; la détente lui est donnée, par un ressort 4 comprimé, quand la masse percutante est en position haute, par l'intermédiaire des crémaillères et ergot, ainsi que par les fluides utilisés pour éliminer les sédiments. L'adaptation de ce dispositif de percussion assemblé au bicone 18 percute la masse de percussion intermédiaire 16 qui transmet le choc à la lame percutante référence 11 ; ces dispositifs se complètent et s'utilisent individuellement. (CF DESSIN DANS BOPI ...

METHOD FOR ROCK-CHISELING

The invention relates to a method for opening rock with a chisel, especially for producing a drillhole in rock by means of a drilling device that comprises a percussion drive and a rotating thrust rod assembly. The percussion unit, via the drill head, exerts a thrust impulse on the breast in a segment thereof in order to knock out rock from the breast. In a subsequent step, the percussion unit is rotated by an angle α via the rod assembly. Pieces of rock are knocked out from the breast by exerting thrust impulses via the drill head and the drill tip in the corresponding new segment of the breast.

Устройство для пневмоударного бурения

Изобретение относится к горной промышленности , в частности к пневматическим машинам ударного действия. Цель изобретения - повышение производительности устройства за счет обеспечения возможности бурения скважин сплошным забоем, Устройство содержит пневмоудар- ный механизм 1, буровые коронки 8 с хвостовиками 7 и рабочей частью, корпус 5 с гнездами, в которых размещены хвостовики 7 буровых коронок 8. С возможностью вращения в корпусе 5 установлен по меньшей мере один разгрузочный элемент (РЭ) с опорной поверхностью. Коронки 8 выполнены с размещенными между рабочей частью и хвостовиком 7 участками 12 для взаимо Б о 00 го ел N 00 ...

Способ ударно-вращательного бурения

Погружное устройство дляудАРНО-ВРАщАТЕльНОгО буРЕНия

Устройство для образования горизонтальных скважин

Ударное устройство

Инструмент для разрушения твердых материалов

The invention relates to a drill bit which includes a drive arrangement having two opposed drive shafts which are transverse to the drill rod axis, mechanism for driving the shafts and a rock comminuting cutter which is eccentrically mounted on each of the shafts.

Downhole impact drilling

Downhole mechanical percussive hammer drill assembly

A modular, mechanical percussive hammer assembly may be used with drill strings, wireline cable, and coiled tubing. Rotation of a splined driveshaft by downhole electric, hydraulic or mud motor rotates a downwardly-biased hammer and drill body rotatively captured within a upwardly-biased stationary anvil. A bit is carried by the drill body. The hammer contacts and rotates along a cammed control surface of the anvil as the driveshaft is rotated. Interaction between the cammed control surface and the hammer operated to create an axial impact force that is transmitted to the drill body and drill bit.

DEVICE FOR SIMULTANEOUSLY CASING A HOLE WHILE DRILLING

Drilling tool bearing and drivetrain assembly

A downhole drilling motor, system, and method for using same are disclosed. A downhole drilling motor can include a power section stator having a first end, a second end, an internal cavity passing therethrough. The downhole drilling motor can further include a rotor assembly positioned and fully encased in the internal cavity. The rotor assembly includes a power section rotor, a drivetrain operably coupled to the power section rotor and a bearing set. The power section rotor is positioned at the first end within the internal cavity of the power section stator. The power section rotor, the drivetrain, and the bearing set are fully encased in the internal cavity of the power section stator. Additional apparatuses, systems, and methods are disclosed.

TORQUE TRANSFER MECHANISM FOR DOWNHOLE DRILLING TOOLS

A well tool drilling tool can include a torque transfer mechanism with an inner mandrel, an outer housing, and at least one pawl which displaces radially and thereby selectively permits and prevents relative rotation between the inner mandrel and the outer housing. A drill string can include a drill bit, a drilling motor, and a torque transfer mechanism which permits rotation of the drill bit in only one direction relative to the drilling motor, the torque transfer mechanism including at least one pawl which displaces linearly and thereby prevents rotation of the drill bit in an opposite direction relative to the drilling motor.

DOWNHOLE DRILLING ASSEMBLY HAVING A HYDRAULICALLY ACTUATED CLUTCH AND METHOD FOR USE OF SAME

A downhole drilling assembly includes a drill string having an inner fluid passageway. A fluid motor disposed within the drill string has a rotor operable to rotate relative to a stator in response to a circulating fluid received via the inner fluid passageway. A drive shaft and drill bit are operably associated with and operable to rotate with the rotor. A hydraulically actuated clutch disposed within the drill string has a first configuration, wherein a first clutch assembly is disengaged from a second clutch assembly such that the drive shaft and drill bit rotate relative to the drill string and, a second configuration, wherein the first clutch assembly engages the second clutch assembly responsive to hydraulic pressure generated by rotation of the drill string such that the drive shaft and drill bit rotate with the drill string.

DRILLING MOTOR WITH ONE-WAY ROTARY CLUTCH

A drilling motor assembly can include a housing, a shaft, and a pawl which selectively engages a recess, the pawl having an axis of rotation and a generally planar engagement face which engages a generally planar engagement face of the recess when relative rotation between the housing and the shaft is prevented. The engaged engagement faces can be oblique relative to a radius extending from the axis of rotation to the engaged engagement faces. A method of drilling a wellbore can include flowing a fluid through a drilling motor assembly, thereby rotating a shaft relative to a housing, and rotating the housing, thereby engaging a pawl with a recess and preventing relative rotation between the housing and the shaft, the pawl and recess each having a generally planar engagement face, whereby the engaged engagement faces prevent relative rotation between the shaft and the housing.

ROTATIONAL IMPACT DRILL ASSEMBLY

Apparatus is provided for introducing a consistent series of small and localized rotary impacts to a PDC bit during drilling, to improve PDC drill bit performance. Rotary impact supplements the nominal torque supplied by the rotary drive thereby avoiding lockup and potentially damaging energy storage in the drill string following windup, should the bit slow or hang up when drilling in difficult formations. The apparatus comprises a rotary hammer which is rotated about a bit shaft's anvil, preferably by a drilling fluid driven turbine. As the hammer rotates, potential energy is built up. When the hammer and anvil connect, the energy is released into the bit shaft and thus into the bit, increases its instantaneous torque and allows it to more effectively cut through difficult formations.

DEVICE FOR SIMULTANEOUSLY CASING A HOLE WHILE DRILLING

A driving device for installing a pipe or casing, without the use of hydraulic or pneumatic means, by capturing the rotational motion of the drill string. The driving device is placed at the top end of the pipe being (42) installed and the drill string (2) passes through the center of the device. The drill string freely rotates, advances or retracts within the driving device, until the driving device is attached (4) to the drill string when required. When the driving device is attached to the drill string, the rotational force of the drill string and any downward force applied to the drill string are captured, and used to install the pipe. The driving device uses the rotation of the drill string to impact a blow to the pipe, driving the pipe downward. The driving device uses any downward force applied to the drill string to maintain downward pressure on the pipe.

Hammer drill

Drilling tool bearing and drive system assembly

Improvements brought to the processes of gallery or sinking and equipment making application of these processes

DEVICE OF END OF THE ROAD FOR HYDRAULIC ACTUATING CYLINDER

ANORDNING FOR UTVINNING AV BORRKERNOR

Annulus Ring Hole Drill

An apparatus for drilling annulus ring hole, comprising: a down-the-hole (DTH) percussion hammer assembly, the DTH percussion hammer assembly comprising one or more DTH percussion hammers, an annulus ring structural housing having an outer diameter (OD) and an inner diameter (ID) for accommodating the DTH percussion hammers within space between the OD and the ID of the annulus ring structural housing; one or more drill pipes being connected serially with each other forming a string of drill pipes, the string of serially connected drill pipes being connected to the DTH percussion hammer assembly; a top pipe with one or more exhaust openings being connected to the string of serially connected drill pipes; an air or fluid distributor being connected to the top pipe; and a rotary head providing rotational turning motion for the apparatus, and the rotary head being connected to the air distributor. 1. An apparatus for drilling annulus ring hole , comprising:a down-the-hole (DTH) percussion hammer assembly, the DTH percussion hammer assembly comprising one or more DTH percussion hammers, an annulus ring structural housing having an outer diameter (OD) and an inner diameter (ID) for accommodating the DTH percussion hammers within space between the OD and the ID of the annulus ring structural housing;a top pipe with one ore more exhaust openings, the top pipe being connected to the DTH percussion hammer assembly;an air or fluid distributor, the air or fluid distributor being connected to the top pipe; anda rotary head, the rotary head providing rotational turning motion for the apparatus, and the rotary head being connected to the air distributor.2. The apparatus of claim 1 , wherein each of the DTH percussion hammer comprises:a drill bit, the drill bit being fixed in its position within the annulus ring structural housing by adjacent index blocks; anda piston on top of the drill bit for delivering hammering forces during drilling.3. The apparatus of claim 2 , wherein the ...

System and method for steering in a downhole environment using vibration modulation

A system and method are provided for using controlled vibrations to bias a drilling direction of a bottom hole assembly (BHA) in a borehole. In one example, the system includes a movement mechanism and a vibration control mechanism. The movement mechanism is configured to use mechanical energy provided by a mechanical energy source to enable translational movement of a first surface relative to a second surface to allow the first surface to repeatedly impact the second surface to produce a plurality of vibration beats. The vibration control mechanism is configured to influence a drilling direction in which the BHA is drilling by controlling an amplitude of the vibration beats to regulate an impact force between the first surface and the second surface, where the amplitude is controlled based on directional information corresponding to the BHA.

Down-Hole Vibrational Oscillator

The invention discloses a set of valves that impart hydraulic pressure pulses at specific frequencies that provide oscillatory movement of a shuttle valve within a of a downhole tool operations. These vibrations can lead to pulses for vertical seismic profiling of formations drilled, to check the location of the bit, or to detect the presence of abnormal pore pressure ahead of the bit. The pressure pulses can also be used to enhance drilling and production of wells. 1. A vibrational oscillator comprising; a shuttle valve assembly disposed along a length of a and within a casing wherein said shuttle valve assembly comprises at least a plunger , a receiving assembly , a cavity , and a valve , within said shuttle valve assembly within which fluid can flow into and out of said shuttle valve assembly and a conduit with an inlet port and an outlet port through which fluid can flow into an upstream section of said oscillator toward and out of a downstream section of said oscillator with at least one fluid passage configured to selectively couple in fluid communication with said inlet port and said outlet port through which fluid passes;such that said plunger is capable of receiving fluid and fits into said receiving assembly and said shuttle valve assembly is sealed so as to always allow at least some volume of said fluid to enter or escape said cavity;and said oscillator includes said plunger that can be at least partially positioned within said receiving assembly to at least partially interrupt fluid flow through said conduit which is in contact with and allows for movement of a fully assembled oscillator component of said oscillator and provides compressive forces that compress at least one spring or set of springs from said receiving assembly and eventually releases said compressive forces when said plunger is removed from said receiving assembly thereby providing for expansion of said springs so that oscillations within said springs located along and/or within said ...

IMPACT-DRIVEN DOWNHOLE MOTORS

A downhole motor has a bearing mandrel rotatably disposed within a housing, plus an impact adapter disposed above and connected to the bearing mandrel and rotatable therewith. The impact adapter has upwardly-projecting teeth engageable with downwardly-projecting teeth on a drive mandrel disposed above and coaxially aligned with the impact adapter. The drive mandrel is both rotatable and axially movable within the housing, and relative to the impact adapter. By means of a cam assembly and a helical spring (or other energy storage means) associated with the drive mandrel, rotation of the drive mandrel causes upward movement of the drive mandrel within the housing, thus compressing the spring. Further rotation causes instantaneous dropping of the drive mandrel, releasing energy stored in the spring, and causing the application of rotational and/or axial impacts to the bearing mandrel, and thus to a drill bit connected to the bearing mandrel. 2. The downhole motor of wherein rotational impact forces will be imparted to the bearing mandrel upon the release of kinetic energy stored in the kinetic energy storage member.3. The downhole motor of wherein the cam assembly comprises: the drive mandrel passes through said central opening in the cam ring such that the drive mandrel is axially movable relative to the cam ring and the cam ring is rotatable about the drive mandrel;', 'an upper end of the cam ring is formed with a plurality of cam lobes, with uniform angular spacing between adjacent cam lobes; and', 'each cam lobe has a cam profile defining a lower flat section, which is contiguous with a ramp section, which is contiguous with an upper flat section, which is contiguous with an axial face, which is contiguous with the lower flat section of the next adjacent cam lobe; and, '(a) a cam ring having a central opening and being mounted within the bore of the housing so as to be rotatable therewith, wherein 'the roller cage includes a plurality of rollers corresponding to ...

SYSTEM AND METHOD FOR DUAL TELEMETRY ACOUSTIC NOISE REDUCTION

A system for active noise blocking of top drive acoustical waves includes a first accelerometer for detecting a first acoustical wave generated by the top drive of a drilling rig. A second accelerometer detects a second acoustical wave after the first acoustical wave has interacted with an anti-wave. An active noise blocking generator generates the anti-wave responsive to the detected first acoustical wave and the detected second acoustical wave and applies the anti-wave to the first acoustical wave. The anti-wave is generated to drive the second acoustical wave to zero responsive to application of the anti-wave to the first acoustical wave. 1. A system for active noise blocking of top drive acoustical waves , comprising:a first accelerometer for detecting a first acoustical wave generated by the top drive of a drilling rig;a second accelerometer for detecting a second acoustical wave after the first acoustical wave has interacted with an anti-wave;an active noise blocking generator for generating the anti-wave responsive to the detected first acoustical wave and the detected second acoustical wave and applying the anti-wave to the first acoustical wave, wherein the anti-wave is generated to drive the second acoustical wave to zero responsive to application of the anti-wave to the first acoustical wave.2. The system of claim 1 , wherein the active noise blocking generator further comprises:an anti-wave generator for generating the anti-wave responsive to an error signal, the error signal representing an amplitude and phase of the anti-wave necessary to interact with the first acoustical wave and drive the second acoustical wave to zero; anderror signal generation circuitry for generating the error signal responsive to differences between the first acoustical wave and the second acoustical wave.3. The system of claim 2 , wherein the anti-wave generator further comprises:a drive circuit for generating a drive signal responsive to the error signal; anda piezoelectric ...

DOWNHOLE MECHANICAL PERCUSSIVE HAMMER DRILL ASSEMBLY

A modular, mechanical percussive hammer assembly may be used with drill strings, wireline cable, and coiled tubing. Rotation of a splined driveshaft by downhole electric, hydraulic or mud motor rotates a downwardly-biased hammer and drill body rotatively captured within a upwardly-biased stationary anvil. A bit is carried by the drill body. The hammer contacts and rotates along a cammed control surface of the anvil as the driveshaft is rotated. Interaction between the cammed control surface and the hammer operated to create an axial impact force that is transmitted to the drill body and drill bit. 1. A percussive hammer assembly , comprising:a driveshaft rotatable within a housing;a hammer rotatively coupled to and axially slideable about said driveshaft;a drill body rotatively coupled to and axially slideable about a lower end of said driveshaft;an anvil rotatively fixed within said housing, said anvil rotatively capturing an upper end of said drill body, said anvil defining a control surface in contact with said hammer; anda first cam formed on said control surface; wherebyrotation of said driveshaft with respect to said housing is operable to rotate said hammer along said control surface; andsaid first cam is operable to axially move said hammer with respect to said driveshaft.2. The percussive hammer assembly of further comprising:a hammer spring disposed within said housing biasing said hammer towards said anvil.3. The percussive hammer assembly of wherein:said first cam defines first surface having a continuous inclination and a second surface that is substantially parallel with said driveshaft; wherebyas said hammer rotates along said first surface, said hammer spring is compressed; andwhen said hammer rotates past said second service, said hammer spring forces said hammer to rapidly strike said anvil.4. The percussive hammer assembly of wherein:said anvil is axially slideable within said housing; andsaid percussive hammer assembly further comprises an anvil ...

BALL TRANSFER MECHANISM WITH POLYCRYSTALLINE DIAMOND BEARING SUPPORT

A ball transfer mechanism for a harmonic drive and linear piston motor is disclosed. The ball transfer mechanism includes a spherical ball and a cylindrical seat portion. The seat portion defines a hemispherical shaped recess with a contour for receiving the ball. The ball transfer mechanism is in an exterior wall of a housing for converting rotary motion to linear motion, driving a linear piston motor. The harmonic drive drives a rotor of the linear piston motor. The harmonic drive includes a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion. Transfer mechanisms disposed along a housing wall of the linear piston motor engage the coupler portion. The coupler portion includes harmonic cam grooves for receiving spherical balls in the ball transfer mechanism that drives rotational motion in the rotor in response to axially linear movement of the piston assembly. 1. A harmonic drive member for driving a rotor of a linear piston motor comprising:a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion; at least one ball transfer mechanism engageable with the coupler portion;the coupler portion comprising at least one harmonic cam groove for receiving at least one spherical ball; wherein mutual reaction between the at least one ball transfer mechanism and the at least one harmonic cam groove axially linear movement of the drive portion generates a torque to rotate the rotor portion.2. The drive member of claim 1 , wherein the ball comprises a hard metal material.3. The drive member of claim 1 , wherein the seat portion comprises a hard metal outer layer and a polycrystalline core portion.4. The drive member of claim 3 , wherein the hard metal is tungsten carbide.5. The drive member of claim 1 , wherein the ball is comprised of steel or metal balls of comparable hardness.6. The drive member of claim 1 , wherein the seat portion comprises a material configured for ...

Boring apparatus and method

An apparatus for boring a wellbore, including a bit body having a first end, an inner cavity, and a second end. The first end is connected to a workstring that is configured to deliver a rotational force to the bit body. The inner cavity contains a profile having a first radial cam surface. The second end includes a working face containing a cutting member. The apparatus also includes a pilot bit rotatively connected within the inner cavity. A second radial cam surface is contained on a first end of the pilot bit. The first and second radial cam surfaces are operatively configured to deliver a hammering force. A second end of the pilot bit may include an engaging surface configured to engage a formation surrounding the wellbore. The bit body rotates relative to the pilot bit.

UP DRILL APPARATUS AND METHOD

An apparatus including a rotating segment having a first radial surface, a non-rotating segment having a second radial surface, a housing disposed around the first and second radial surfaces, and one or more rolling elements disposed between and in contact with the first and second radial surfaces for transferring the non-rotating segment in an axial direction upon rotation of the rotating segment. The non-rotating element may be a second rotating element that rotates at a different rotational rate than the rotating element. Each rolling element moves 360 degrees along a circular path relative to the first radial surface and the second radial surface. The first or second radial surface has a tapered section. A downhole apparatus includes a power mandrel having a first end connected to a power section member and a second end having a rotating cam surface; a rotating element engaging the rotating cam surface; an anvil sub attached to a workstring, with the anvil sub having a stationary cam surface configured to engage with the rotating cam surface. Rotation of the rotating cam surface moves the anvil sub and the workstring axially within the wellbore. 1. A downhole apparatus connected to a workstring within a wellbore , the apparatus comprising:a power mandrel having a first end operatively connected to a power section member and a second end having a rotating cam surface, said power mandrel being disposed within an outer housing above the power section member;a sub operatively attached to the workstring, said sub having a stationary cam surface operatively configured to engage with said rotating cam surface;wherein as said rotating cam surface engages said stationary cam surface, the sub and the workstring are moved axially within the wellbore relative to the outer housing.2. The downhole apparatus of claim 1 , wherein said sub is an anvil sub.3. The downhole apparatus of claim 2 , further comprising:a first spline member configured on an outer surface of said anvil ...

PERCUSSION DEVICE

A percussion device that includes: —an input side; —an output side; —at least one drive transmitter; —a drive transmitter pathway; —a percussion impactor; and —a percussion anvil; where: the drive transmitter pathway is a circumferential pathway around a longitudinal axis of the percussion device; —the drive transmitter pathway includes at least one tooth section including a lift section and a lead section; —the at least one tooth section is essentially one wavelength of a sawtooth wave; —the lift section is inclined away from a base of the drive transmitter pathway; —the lead section is a section of the tooth section which abruptly returns to the base of the drive transmitter pathway; —the input side is rotationally isolated from the percussion impactor; —the percussion anvil is attached to, or forms part of, the output side; —the percussion impactor includes an impact end and a force input end which are longitudinally opposite terminal ends of the percussion impactor; and —the impact end faces the percussion anvil; such that: when in use, and the output section is free to rotate, the at least one drive transmitter and the drive transmitter pathway are configured to act co¬ operatively to transfer the rotational motion of the input side to the output side; and —when in use and limited or no rotation of the output side is possible, the at least one drive transmitter and the drive transmitter pathway are configured to act co-operatively to increase, maintain or decrease the distance between the percussion impactor and the percussion anvil; wherein the at least one drive transmitter and the drive transmitter pathway are configured to act co-operatively to accept rotational motion from the input side and transmit a percussive and/or rotational motion to the output side. 2. The percussion device as claimed in claim 1 , wherein the cross section of the impactor shaft and the impactor shaft tunnel are selected from the following list claim 1 , rectangular claim 1 , square ...

HAMMER DRILL

A downhole apparatus connected to a workstring within a wellbore. The workstring is connected to a bit member. The apparatus includes a mandrel operatively connected to a downhole motor mechanism, an anvil member operatively formed on the bit member, the anvil member being operatively connected to the mandrel, a radial bearing housing unit operatively connected to the workstring, with the radial bearing housing unit being disposed about the mandrel, and a hammer member slidably attached to the radial bearing housing unit. 1. An apparatus for generating an axial impact , comprising:a hammer segment having a radial cam surface;an anvil segment having an internal radial shoulder, an inner wall extending from the internal radial shoulder, and one or more partial cavities adjacent to the internal radial shoulder in an internal space within the inner wall of the anvil segment;one or more rolling elements partially disposed within the partial cavities of the anvil segment, wherein the rolling elements cooperate with the radial cam surface of the hammer segment for axially displacing the hammer segment from the anvil segment and generating the axial impact upon rotation of the hammer segment or the anvil segment, wherein each rolling element moves 360 degrees relative to the hammer segment.2. The apparatus of claim 1 , wherein the radial cam surface of the hammer segment contacts the internal radial shoulder of the anvil segment to generate the axial impact upon rotation of the hammer segment or the anvil segment.3. The apparatus of claim 1 , wherein the hammer segment further comprises a hammer surface and the anvil segment comprises an anvil surface.4. The apparatus of claim 3 , wherein the hammer surface is a radial surface and the anvil surface is a radial surface.5. The apparatus of claim 4 , wherein the hammer surface contacts the anvil surface to generate the axial impact upon rotation of the hammer segment or the anvil segment.6. The apparatus of claim 5 , wherein ...

Boring apparatus and method

An apparatus for boring a wellbore, including a bit body having a first end, an inner cavity, and a second end. The first end is connected to a workstring that is configured to deliver a rotational force to the bit body. The inner cavity contains a profile having a first radial cam surface. The second end includes a working face containing a cutting member. The apparatus also includes a pilot bit rotatively connected within the inner cavity. A second radial cam surface is contained on a first end of the pilot bit. The first and second radial cam surfaces are operatively configured to deliver a hammering force. A second end of the pilot bit may include an engaging surface configured to engage a formation surrounding the wellbore. The bit body rotates relative to the pilot bit.

Downhole Motor, Drill String Provided with Such a Motor and Method of Releasing a Stuck Drill Bit Attached to Such a Motor

A downhole motor () which comprises a stator housing (), a rotor assembly () rotatable relative to said stator housing, and an arrangement for enabling, in use, a drill bit connected to the rotor assembly of said downhole motor to be rotated by rotating a drill string connected to said stator housing, wherein said arrangement comprises a unidirectional clutch () disposed between said rotor assembly and said stator housing and having at least one pawl which can be displaced between an inoperative position adjacent said stator housing and an operative position in which rotation of said stator housing by said drill string in one sense is transmitted to said rotor assembly via said at least one pawl, means biasing said at least one pawl towards said operative position, means retaining said at least one pawl in its inoperative position, and means which, when sufficient pulling force is applied to said drill string, will cause said means retaining said at least one pawl to release said at least one pawl and enable said at least one pawl to move into its operative position. 1. A downhole motor which comprises a stator housing , a rotor assembly rotatable relative to said stator housing , and an arrangement for enabling , in use , a drill bit connected to the rotor assembly of said downhole motor to be rotated by rotating a drill string connected to said stator housing , wherein said arrangement comprises a unidirectional clutch disposed between said rotor assembly and said stator housing and having at least one pawl which can be displaced between an inoperative position adjacent said stator housing and an operative position in which rotation of said stator housing by said drill string in one sense is transmitted to said rotor assembly via said at least one pawl , means biasing said at least one pawl towards said operative position , means retaining said at least one pawl in its inoperative position , and means which , when sufficient pulling force is applied to said drill ...

Hammer Drill Mechanism

Various embodiments include methods and apparatus structured to increase efficiencies of a drilling operation. A drilling apparatus can be structured to include a hammer drill to move a hammer to impart impact force to a bit box in conjunction with a rotary drive shaft. The hammer drill can be arranged as a mechanical drive hammer capable of being applied to both fluid drilling and air drilling. Additional apparatus, systems, and methods are disclosed.

DRILLING TOOL

A drilling tool includes an outer cylinder; a power rotary shaft arranged in an inner chamber of the outer cylinder; a percussion generator arranged below the power rotary shaft, having a transmission shaft extending in the outer cylinder and can be driven by the power rotary shaft to rotate around its axis, an output main shaft engaged with a lower end of the transmission shaft so as to be driven by the transmission shaft to rotate about its axis and is movable relative to the transmission shaft along an axial direction, and an percussion assembly The percussion assembly is arranged between an annulus formed between the upper end of the output main shaft and the outer cylinder and can generate reciprocating impact along the axial direction on the output main shaft. A drilling bit connected with the output main shaft extending out of the inner chamber of the outer cylinder. 1. A drilling tool , comprising:an outer cylinder;a power rotary shaft arranged in an inner chamber of the outer cylinder and configured to be driven to rotate around its own axis; a transmission shaft extending in the outer cylinder, and configured to be coupled with and driven by the power rotary shaft to rotate around its axis;', 'an output main shaft, which has an upper end engaged with a lower end of the transmission shaft so as to be driven by the transmission shaft to rotate about its axis, and is movable relative to the transmission shaft along an axial direction; and', 'an percussion assembly, which is arranged between an annulus formed between the upper end of the output main shaft and the outer cylinder, and is configured to generate reciprocating impact along the axial direction on the output main shaft; and, 'a percussion generator arranged below the power rotary shaft, comprisinga drilling bit connected with a lower end of the output main shaft extending out of the inner chamber of the outer cylinder.2. The drilling tool according to claim 1 , wherein the percussion assembly ...

Забойные двигатели с ударным приводом

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 136 107 A (51) МПК E21B 6/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21) (22) Заявка: 2017136107, 24.03.2016 (71) Заявитель(и): ДРЕКО ЭНЕРДЖИ СЕРВИСЕС ЮЛС (CA) Приоритет(ы): (30) Конвенционный приоритет: 25.03.2015 US 62/137,863 (43) Дата публикации заявки: 25.04.2019 Бюл. № 12 (72) Автор(ы): ШИХАН Марк (CA), ПРИЛЛ Джонатан (CA) R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.10.2017 CA 2016/000082 (24.03.2016) (87) Публикация заявки PCT: WO 2016/149795 (29.09.2016) Адрес для переписки: 190000, Санкт-Петербург, БОКС-1125 R U (57) Формула изобретения 1. Забойный двигатель, содержащий: (a) несущую оправку, установленную с возможностью вращения в корпусе; (b) ударный переходник, расположенный выше и соединенный с несущей оправкой таким образом, что он обладает возможностью вращения с ней, причем ударный переходник имеет верхний конец с выступающими вверх зубцами ударного переходника; (c) приводную оправку, расположенную в корпусе выше ударного переходника и с соосным выравниванием с ним, при этом приводная оправка выполнена с возможностью вращения и перемещения в осевом направлении относительно корпуса и относительно ударного переходника, и приводная оправка имеет нижний конец с выступающими вниз зубцами приводной оправки, которые выполнены с возможностью зацепления с зубцами ударного переходника; (d) кулачковое устройство, связанное с приводной оправкой, и (e) средство запасания кинетической энергии, связанное с приводной оправкой и кулачковым узлом; причем: (f) вращение приводной оправки обеспечивает возможность перемещения приводной оправки вверх в осевом направлении относительно ударного переходника и корпуса, что приводит к запасанию кинетической энергии в средстве запасания кинетической энергии, и Стр.: 1 A 2 0 1 7 1 3 6 1 0 7 A (54) ЗАБОЙНЫЕ ДВИГАТЕЛИ С УДАРНЫМ ПРИВОДОМ 2 0 1 7 1 3 6 1 0 7 (86) Заявка PCT: A 2 0 1 7 1 3 6 1 0 7 A R U 2 0 1 7 1 3 ...

Drill to make circular wells

FIELD: process engineering. SUBSTANCE: invention relates to construction and may be used for making of piles foundation. Proposed device comprises assembly of drilling hammers with percussion-type downhole device. The latter comprises one or more percussion-type downhole devices, circular case with ID and OD. Said case houses drilling hammers with percussion-type downhole device arranged in between said ID and OD. Top pipe has one or more outlets. Note here that top pipe is connected to said drilling hammer. Air or fluid pressure control valve is connected to said top pipe. Drive to spin the device connected to aforesaid valve. Every said hammer comprises drill bit locked in circular case by adjacent wedges. Piston is arranged at drill bit top part to transfer percussion force at drilling and has discharge bore. The latter is arranged at drill bit bottom to release compressed air or fluid. Said compressed air of fluid force crushed lumps of rock particles out along case inner and outer surface. EFFECT: high percussion power. 8 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 553 697 C2 (51) МПК E21B 4/16 (2006.01) E21B 6/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013125696/03, 10.02.2012 (24) Дата начала отсчета срока действия патента: 10.02.2012 (72) Автор(ы): ЧАН Леун Чои (CN), ЧАН Кин Чои (CN) 11.02.2011 US 61/441,656 (43) Дата публикации заявки: 10.12.2014 Бюл. № 34 R U (73) Патентообладатель(и): ТОП МАРК МЕКАНИКАЛ ЭКВИПМЕНТ ЛИМИТЕД (CN) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 20.06.2015 Бюл. № 17 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.06.2013 C 2 C 2 машины ударного действия для проходки скважин и шпуров, Новосибирск: Наука, 1986, стр.52. SU 276869 A, 22.08.1970. SU 1442662 А1, 07.12.1988 . UA 6742 С2, 29.12.1994 . US 4878547 A, 07.11.1989. US 5174390 A1, 29.12.1992 . US 2004/0011565 A1, 22.01.2004 (86) Заявка PCT: CN 2012/071040 (10. ...

Multi-accumulator arrangement for hydraulic percussion mechanism

FIELD: soil or rock drilling. SUBSTANCE: invention relates to rock drilling equipment. Hydraulically powered percussion mechanism comprises a piston mounted for reciprocating movement in the percussion mechanism to provide an impact on the drill bit, a pressurised fluid channel for delivering pressurised fluid to the percussion mechanism from the base machine to perform reciprocating movement of the piston; and a first accumulation unit for hydraulic fluid. First accumulation unit comprises a plurality of first accumulation elements. Each of the first accumulation elements is located in the same proximity to the piston, and the plurality of first accumulation elements fluidly communicate with the pressurised fluid channel of the percussion mechanism during the entire piston cycle. EFFECT: technical result consists in ensuring the reliability and response time of the system in the equipment, as well as compactness of the equipment. 19 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 674 270 C2 (51) МПК E21B 4/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 4/14 (2006.01) (21)(22) Заявка: 2016102607, 26.06.2014 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): МИНКОН ИНТЕРНЭШНЛ ЛИМИТЕД (IE) Дата регистрации: 06.12.2018 (56) Список документов, цитированных в отчете о поиске: US 3465834 A, 09.09.1969. SU 28.06.2013 GB 1311674.4 (43) Дата публикации заявки: 02.08.2017 Бюл. № 22 1002564 A1, 07.03.1983. RU 2013540 C1, 30.05.1994. RU 2265721 C1, 10.12.2005. WO 98/ 51900 A1, 19.11.1998. WO 2012/138287 A1, 11.10.2012. (45) Опубликовано: 06.12.2018 Бюл. № 34 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.01.2016 EP 2014/063622 (26.06.2014) (87) Публикация заявки PCT: 2 6 7 4 2 7 0 WO 2014/207164 (31.12.2014) R U 2 6 7 4 2 7 0 Приоритет(ы): (30) Конвенционный приоритет: R U 26.06.2014 (72) Автор(ы): ПЕРСЕЛЛ Джозеф (IE), КОСОВИЧ Джон (IE) ...

More accumulator structures for hydraulic impact mechanism

本发明涉及一种液压动力的冲击机构(12)，该液压动力的冲击机构包括用来碰撞冲击钻头(8)的活塞(6)。该冲击机构也包括用于液压流体的第一蓄力器组件(3a)。该第一蓄力器组件包括多个第一蓄力器元件(27)。在第一方面中，该多个第一蓄力器元件布置在共同外壳(14)中。在第二方面中，该第一蓄力器元件的每一个布置在该活塞的相同的近处。在第三方面中，该第一蓄力器元件的每一个包括蓄力器膜(32)或活塞，并且其中与液压流体接触的该膜或活塞的运动的主方向基本上平行于该机构的纵向轴线。

Patent RU2016102607A3

`”ВУ“” 2016102607” АЗ Дата публикации: 20.03.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение «Федеральный институт промышленной собственности» ж 9 (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016102607/03(003773) 26.06.2014 РСТ/ЕР2014/063622 26.06.2014 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 1311674.4 28.06.2013 ОВ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) УСТРОЙСТВО С МНОЖЕСТВОМ ГИДРОАККУМУЛЯТОРОВ ДЛЯ ГИДРАВЛИЧЕСКОГО УДАРНОГО МЕХАНИЗМА Заявитель: МИНКОН ИНТЕРНЭШНЛ ЛИМИТЕД, [Е 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕВ 4/14 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е 02 О 7/00, 7/02, 7/06, 7/10, Е 21 В 1/00, 1/12, 1/24, 1/26, 4/00, 4/06, 4/14 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): ЕАРАТТУ, Езрасепев, РаЗеагсв, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится ...

RING FOR DRILLING RING WELLS

1. Устройство для бурения кольцеобразных скважин, содержащееузел бурильных молотов с погружным пневмоударником, включающий в себя один или более бурильных молотов с погружным пневмоударником, кольцевой корпус, имеющий наружный диаметр и внутренний диаметр, вмещающий бурильные молоты с погружным пневмоударником в пространстве между наружным и внутренним диаметрами кольцевого корпуса,верхнюю трубу с одним или более выходным отверстием, причем верхняя труба подключается к узлу бурильного молота с погружным пневмоударником;пневмо- или гидрораспределитель, который подключен к верхней трубе;привод-вращатель, обеспечивающий вращение устройства, причем привод-вращатель подключен к пневмораспределителю.2. Устройство по п.1, в котором каждый бурильный молот с погружным пневмоударником содержитбуровую коронку, фиксируемую на месте в кольцевом корпусе смежными делительными узлами,поршень в верхней части буровой коронки для передачи ударного воздействия во время бурения.3. Устройство по п.2, в котором буровая коронка имеет наружный размер, выходящий за наружный диаметр кольцевого корпуса, и внутренний размер, выходящий за внутренний диаметр кольцевого корпуса, так, что наружный диаметр кольцеобразной скважины больше наружного диаметра узла бурильных молотов с погружным пневмоударником и буровых труб, а внутренний диаметр кольцеобразной скважины меньше внутреннего диаметра узла бурильных молотов с ПП и буровых труб.4. Устройство по п.2, в котором буровая коронка имеет выпускное отверстие, расположенное в нижней части буровой коронки, и служащее для выхода сжатого воздуха или жидкости под давлением.5. Устройств РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2013 125 696 A (51) МПК E21B 4/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013125696/03, 10.02.2012 (71) Заявитель(и): ТОП МАРК МЕКАНИКАЛ ЭКВИПМЕНТ ЛИМИТЕД (CN) Приоритет(ы): (30) Конвенционный приоритет: 11.02.2011 US 61/441,656 (85) Дата начала рассмотрения заявки PCT ...

Torsion impact speed accelerating device

<b>本发明涉及钻井提速装置技术领域，是一种扭力冲击提速装置，其包括本体、砧板体、冲击锤体、转换体、芯轴和节流喷嘴，在本体的上部内侧固定有内限位凸台，在内限位凸台与砧板体之间安装有引流体，在节流喷嘴的上部内侧有呈上宽下窄锥台状的下锥形环台，砧板体的下部与本体的下部通过定位装置固定在一起。本发明结构合理而紧凑，使用方便，其在使用的过程中，通过冲击锤体对砧板体的冲击作用，使本发明</b><b>给予</b><b>PDC</b><b>钻头一个额外的冲击力，进而</b><b>能够减少PDC钻头在钻进中的能力聚集，从而能够避免PDC钻头在钻进过程中出现蹦齿现象，还能够避免整个钻柱产生疲劳损坏，在能够提高PDC钻头的钻速的前提下，能够延长PDC钻头的使用寿命。</b>

Patent RU2017136107A3

7 ВУ” 2017136107” АЗ Дата публикации: 03.09.2019 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017136107/03(062987) 24.03.2016 РСТ/СА2016/000082 24.03.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 62/137,863 25.03.2015 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ЗАБОЙНЫЕ ДВИГАТЕЛИ С УДАРНЫМ ПРИВОДОМ Заявитель: ДРЕКО ЭНЕРДЖИ СЕРВИСЕС ЮЛС, СА 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е21В 4/16 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е21В 4/00, Е21В 4/02, Е21В 4/06, 21В 4/10, Е21В 4/16, Е21В 7/00, Е21В 11/00, ЕВ 11/02 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУ\УР1, ЕАРАТТУ, Езрасепе, ]-Р]а Ра, РАТЕМТЫСОРЕ, Рабеагсв, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, ...

Structure of air-hammer for digging

본 고안은 공압의 흐름을 개선시키기 위한 공급 구조를 중앙공급식으로 혁신함에 따라 중앙의 공압이 동심원상에 배치된 공압통로를 통해 분산되도록 하고, 공압은 피스톤을 승강시키기 위해 챔버 내에 공급되도록 하되 이 챔버는 피스톤과 케이싱이 이루는 공간에 의해 다수개가 형성되도록 하며, 역학적으로 산출된 피스톤의 길이는 장비내로 유입되는 역수(逆水)가 장비의 기능저하를 가져오지 않을 정도의 제작되며, 체크밸브의 잦은 파손을 방지하는 기술이 적용된 굴착용 해머비트의 시스템에 관한 것으로, 공압이 공급되는 케이싱 내에서 피스톤이 왕복이동 하도록 설치되며, 굴착작업은 이 피스톤에 의해 타격을 받은 버튼 비트가 회전과 굴착에 의한 굴착작업이 이루어지도록 구성되고, 상기 케이싱상부에는 백헤드가 압축공기 공급용 중공과 체크밸브수납용 중공이 형성된 채 나사결합되며, 상기 체크밸브의 하단에는 가이드가 코일스프링을 매개로 결합되면서 그 축부가 피스톤의 중공내로 입출되는 구조를 이루고, 상기 케이싱의 하단 내경부에는 부싱과 척 이 일체로 형성된채 설치되어서, 피스톤과 버튼비트가 승강할때 유격에 의한 흔들림을 방지시킴은 물론 공압에 의한 피스톤 승강으로 굴착작업을 비약적으로 향상시키고 장비의 유지보수가 용이하며, 지하수등의 역류에 의한 장비고장원인을 제거한 특징의 구조를 갖는 것이다.

Multi-accumulator arrangement for hydraulic percussion mechanism

본 발명은 타격 비트에 충격을 가하기 위한 피스톤을 포함하는 유압 구동식 타격 메커니즘에 관한 것이다. 타격 메커니즘은 또한 유압 유체용 제 1 축압기 조립체를 포함한다. 제 1 축압기 조립체는 복수의 제 1 축압기 요소를 포함한다. 제 1 양태에서, 복수의 제 1 축압기 요소는 공통의 하우징 내에 배치된다. 제 2 양태에서, 제 1 축압기 요소의 각각은 피스톤으로부터 동일한 근거리에 배치된다. 제 3 양태에서, 제 1 축압기 요소의 각각은 축압기 멤브레인 또는 피스톤을 포함하고, 유압 유체와 접촉된 멤브레인 또는 피스톤의 일차 이동 방향은 메커니즘의 종축선에 실질적으로 평행하다. FIELD OF THE INVENTION The present invention relates to a hydraulically driven percussion mechanism comprising a piston for impacting a percussion bit. The percussion mechanism also includes a first accumulator assembly for hydraulic fluid. The first accumulator assembly includes a plurality of first accumulator elements. In a first aspect, a plurality of first accumulator elements are disposed within a common housing. In a second aspect, each of the first accumulator elements is disposed at the same proximal distance from the piston. In a third aspect, each of the first accumulator elements comprises an accumulator membrane or piston, wherein the primary direction of movement of the membrane or piston in contact with the hydraulic fluid is substantially parallel to the longitudinal axis of the mechanism.

Downhole percussion drilling apparatus

A downhole percussion drilling apparatus includes a housing and a piston rotatably supported within an interior bore of the housing. A first engagement surface serves as a cam surface. A second engagement surface serves as a follower surface. The cam surface has a plurality of inclined planes each of which terminates in a drop off. With each rotation of the piston, the follower surface rises up each of the inclined planes and then falls down each of the drop offs of the cam surface thereby imparting a series of percussive hammering impacts to the piston.

BICONE WITH PERCUTANT MONOLAME

Bicone with a single hammering blade

Device making it possible to use a board 1, a tube 1 with hammering elements numbered from 2 to 6, built into this tube. This device makes it possible, by using small wheels 10 placed at the periphery, to lift the hammering weight 6 from the bottom upwards; one small wheel comprises, on its spindle, a ribbed eccentric catch 14 actuating the rack 15, and the other small wheel comprises a cam 8 fitted on its spindle, actuating a stud 7 so that it moves from the bottom upwards; the hammering weight 6 then strikes, during its downward fall, the hammering blade 9; it is thrust by a compressed spring 4, when the hammering weight is in the top position, via racks and a stud, and by the fluids used for removing the sediments. The arrangement of this hammering device assembled to the bicone 18 strikes the intermediate hammering weight 16 which transmits the impact to the hammering blade reference 11; these devices complement each other and are used individually.

METHOD OF DRILLING THE SOIL AS WELL AS AN ACTIVE DRILLING MACHINE TO CARRY OUT SUCH BORING

Large diameter borehole or tunnel drilling rig

The drilling rig has a cutting head driven in a circular motion by wheels applied against the workface and sides of the borehole. The wheels are contained in a cylindrical housing (27) which also holds hammers transmitting a percussive motion to cutters on a circular plate (4). The rig also has an upper plate with power cylinders applying a lateral horizontal pressure against motor and reduction gear units (10) and the horizontal wheels, enhancing the wheels' contact with the borehole side walls.

Multi-accumulator arrangement for hydraulic percussion mechanism

The present invention relates to a hydraulically powered percussion mechanism, comprising a piston to impact a percussion bit. The percussion mechanism also includes a first accumulator assembly for hydraulic fluid. The first accumulator assembly comprises a plurality of first accumulator elements. In a first aspect, the plurality of first accumulator elements are arranged in a common housing. In a second aspect, each of the first accumulator elements is arranged at the same proximity to the piston. In a third aspect, each of the first accumulator elements comprises an accumulator membrane or piston, and wherein the primary direction of movement of the membrane or piston in contact with the hydraulic fluid is substantially parallel to a longitudinal axis of the mechanism.

Wellbore drilling accelerator

A drilling accelerator that is driven from a rotational drive to generate a percussive axial motion on a drill bit. The drilling accelerator includes a drive connection to mechanically convert rotational drive to axially directed percussive motion.

Rotary rock drills

Flushing arrangements for liquid-powered down-the-hole hammers

The present invention relates to a liquid-powered down-the-hole hammer comprising an external cylindrical outer wear sleeve, an inner cylinder mounted within the outer wear sleeve, and a sliding piston mounted for reciprocating movement within the inner cylinder to strike a percussion bit of a drill bit assembly located at the forward end of the outer wear sleeve. The hammer further comprises a flushing passage, configured to allow flushing fluid to pass through the hammer and the percussion bit to evacuate drill cuttings from a hole being drilled. Restriction means (ie a valve) is provided in the flushing passage, wherein the restriction means is operable to restrict flow of flushing fluid upwards through the hammer. The invention also relates to a portion of the flushing passage being provided outside the piston. The flushing passage may be isolated from the piston.

Downhole motors with impact drive

FIELD: drilling of soil and rocks; mining. SUBSTANCE: invention relates to drilling. Downhole motor comprises a bearing mandrel installed with possibility of rotation in the housing, an impact adapter located higher and connected to the bearing mandrel so that it is capable of rotation with it, wherein impact adapter has upper end with upwardly projecting teeth of impact adapter, drive mandrel located in housing above impact adapter and with coaxial alignment therewith, cam device associated with drive mandrel, and means of storing kinetic energy associated with driving mandrel and cam assembly. Driving mandrel is made with possibility of rotation and movement in axial direction relative to housing and relative to impact adapter. Driving mandrel has lower end with protruding down teeth of driven mandrel, which are made with possibility of engagement with teeth of impact adapter. Rotation of drive mandrel makes it possible to move driving mandrel upwards in axial direction relative to impact adapter and housing, which leads to storage of kinetic energy in storage device of kinetic energy, and further rotation of the drive mandrel makes it possible to move the driving mandrel downwards in the axial direction, in order to release kinetic energy stored in the kinetic energy storage device, so that the drive mandrel transmits axial impact forces to the bearing mandrel. EFFECT: reduced value of reactive twisting loads transmitted to drill string. 9 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 705 698 C2 (51) МПК E21B 4/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 4/16 (2019.02) (21)(22) Заявка: 2017136107, 24.03.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ДРЕКО ЭНЕРДЖИ СЕРВИСЕС ЮЛС (CA) Дата регистрации: 11.11.2019 25.03.2015 US 62/137,863 (43) Дата публикации заявки: 25.04.2019 Бюл. № 12 (56) Список документов, цитированных в отчете о поиске: US 7882906 B1, ...

Well pipe swage

Broadband switching multiplexer

본 발명은 광대역 스위칭 멀티플렉서에 관한 것으로, 각 채널별로 5차 인터디지털 형식의 대역통과여파기와 1차 평행결합선로 형식의 대역저지여파기로 구성되어 입력받은 신호를 분리하는 주파수 멀티플렉서와, 각 채널별로 5차 인터디지털 형식의 대역통과여파기와 1차 평행결합선로 형식의 1차 대역저지여파기로 구성되어 상기 주파수 멀티플렉서에서 전달받은 신호를 합성하는 주파수 디멀티플렉서와, 상기 주파수 멀티플렉서에서 출력되는 신호를 동일 채널의 주파수 디멀티플렉서로 입력시키는 스위치로 구성되어 스위칭 멀티플렉서를 소형화한 효과가 있다. The present invention relates to a wideband switching multiplexer, comprising: a frequency multiplexer for separating input signals consisting of a bandpass filter of a fifth order interdigital format and a bandstop filter of a first parallel coupling line type for each channel, and a channel multiplexer for each channel. A frequency demultiplexer composed of a band pass filter of a second interdigital type and a first band stop filter of a first parallel coupling line type to synthesize a signal received from the frequency multiplexer, and a signal output from the frequency multiplexer to a frequency of the same channel. It consists of a switch to be input to the demultiplexer, which has the effect of miniaturizing the switching multiplexer.

Tubing expansion

A method of expanding tubing comprises the steps: providing a length of expandable tubing; locating an expansion tool, such as a cone, in the tubing; and applying impulses to the tool to drive the tool through the tubing and expand the tubing to a larger diameter. The tubing may be located downhole and may have a solid wall or a slotted wall.

Downhole oscillator

An exemplary embodiment of the downhole oscillator includes an outer housing at least partially surrounding a motor and a removably coupled eccentric member. The motor at least partially drives the rotation of the eccentric member thereby producing oscillations or vibrations along the outer diameter of at least a portion of the downhole assembly. The motor's action is at least in part facilitated by expulsion of fluid from the drill string through the motor and onto the interior of the control sleeve such that the force of the interaction between the motor and outer housing produces rotation in the motor. This rotation may be enhanced through expulsion of fluid from the eccentric member whereby the interaction of the expelled fluid therefrom interacts with the interior of the outer housing thereby providing rotation of the eccentric member. Alternatively, the fluid may be expelled from the motor and/or the eccentric member against the interior the wellbore thereby providing the desired rotation. A method of use may include providing an outer housing, motor capable of producing rotational movement, and an asymmetrical eccentric member and functionally coupling same. Whereby the production of vibration in at least a portion of the outer diameter of a bottom hole assembly may be produced.

Rotary driven drilling hammer

A percussive tool adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment the percussive tool has a hydraulic pump, driven by a drive member, to operate the hammer assembly. In another preferred embodiment the percussive tool has a rotary-driven cam assembly adapted to mechanically operate the hammer assembly. This invention provides increased control and efficiency for the use of percussive force in horizontal directional drilling operations.

Device and method for the rapid execution of boreholes in all terrains

Hammer drill mechanism

Various embodiments include methods and apparatus structured to increase efficiencies of a drilling operation. A drilling apparatus can be structured to include a hammer drill to move a hammer to impart impact force to a bit box in conjunction with a rotary drive shaft. The hammer drill can be arranged as a mechanical drive hammer capable of being applied to both fluid drilling and air drilling. Additional apparatus, systems, and methods are disclosed.

Drilling tool

A drilling tool, comprising an outer cylinder (1); a power rotary shaft (13), provided in an inner cavity of the outer cylinder (1), the power rotary shaft (13) being able to be driven to rotate around the axis thereof; an impact generator, provided below the power rotary shaft (13), the impact generator having a transmission shaft (20) extending in the outer cylinder (1) and configured to be combined with the power rotary shaft (13) so as to rotate around the axis thereof under the driving of the power rotary shaft (13), an output spindle (22) having an upper end engaged with a lower end of the transmission shaft (20) so as to be drivable by the transmission shaft (20) to rotate around the axis thereof and being able to move axially relative to the transmission shaft (20), and an impact assembly provided in an annular space formed by the upper end of the output spindle (22) and the outer cylinder (1) and configured to produce axial reciprocating impacts on the output spindle (22); and a drill bit, the drill bit being able to be connected to a lower end of the output spindle (22) extending out of the inner cavity of the outer cylinder (1). The drilling tool can generate impacts on a formation while rotary drilling is performed on the formation, and the drilling efficiency is high.

Multi-accumulator arrangement for hydraulic percussion mechanism

본 발명은 타격 비트에 충격을 가하기 위한 피스톤을 포함하는 유압 구동식 타격 메커니즘에 관한 것이다. 타격 메커니즘은 또한 유압 유체용 제 1 축압기 조립체를 포함한다. 제 1 축압기 조립체는 복수의 제 1 축압기 요소를 포함한다. 제 1 양태에서, 복수의 제 1 축압기 요소는 공통의 하우징 내에 배치된다. 제 2 양태에서, 제 1 축압기 요소의 각각은 피스톤으로부터 동일한 근거리에 배치된다. 제 3 양태에서, 제 1 축압기 요소의 각각은 축압기 멤브레인 또는 피스톤을 포함하고, 유압 유체와 접촉된 멤브레인 또는 피스톤의 일차 이동 방향은 메커니즘의 종축선에 실질적으로 평행하다.

Jar for fishing and drilling tools

Enhanced vibrational or hammering apparatus

Vibrational apparatus to direct stress waves (eg. to a bit 2 or other downhole tool) by generating vibrations as a consequence of shuttling responsive to relative rotational movement between magnetic arrays (4,5) and wherein there is, or can be, a use of a system (6,7) (whether rebound, recoil, spring, pneumatic, magnetic or not) able at least in part to return acquired potential energy in addition to any acquired at the same time by the interacting magnetic arrays. A free travel distance can be provided for one of said components prior to the onset of any substantial collection of energy from the movement (relative) of that component in a direction (eg, uphole) for use in return travel (eg, downhole) preferably synchronized, or synchronizable, to enhance the return travel causing forces of any repulsive and/or attractive forces generated otherwise than by the said magnetic arrays.

Percussion mechanism for rotary drilling apparatus

Core drilling attachment

Downhole oscillator

An exemplary embodiment of the downhole oscillator includes an outer housing at least partially surrounding a motor and a removably coupled eccentric member. The motor at least partially drives the rotation of the eccentric member thereby producing oscillations or vibrations along the outer diameter of at least a portion of the downhole assembly. The motor's action is at least in part facilitated by expulsion of fluid from the drill string through the motor and onto the interior of the control sleeve such that the force of the interaction between the motor and outer housing produces rotation in the motor. This rotation may be enhanced through expulsion of fluid from the eccentric member whereby the interaction of the expelled fluid therefrom interacts with the interior of the outer housing thereby providing rotation of the eccentric member. Alternatively, the fluid may be expelled from the motor and/or the eccentric member against the interior the wellbore thereby providing the desired rotation. A method of use may include providing an outer housing, motor capable of producing rotational movement, and an asymmetrical eccentric member and functionally coupling same. Whereby the production of vibration in at least a portion of the outer diameter of a bottom hole assembly may be produced.

Apparatus for vibrating a pipe string in a borehole

An apparatus for vibrating a pipe string in a borehole comprises at a downhole location a hydraulic motor having a stator part (2) and a rotor part (3), the stator part (2) forming part of the string (1) and the rotor part (3) being coupled to a percussion device (6) which longitudinally moves the rotor part (3) relative to the stator part (2) in an oscillating manner during the course of each rotation of the rotor part relative to the stator part.

Wellbore drilling accelerator

A drilling accelerator that is driven from a rotational drive to generate a percussive axial motion on a drill bit. The drilling accelerator includes a drive connection to mechanically convert rotational drive to axially directed percussive motion. A wellbore tubular connection is also disclosed that transitions torque to resist back off when left hand or right hand torque is applied.

Drilling tool and drilling method

Boring apparatus and method

A boring apparatus includes an upper member and a bit body configured to rotate relative to a pilot bit. A first end of the upper member is connected to a workstring. An inner cavity of the upper member includes a first radial cam surface. A first end of the bit body is connected to a second end of the upper member such that the bit body rotates with the upper member. A second end of the bit body includes a working face. The pilot bit includes a first end disposed within the inner cavity of the upper member, and includes a second radial cam surface configured to cooperate with the first radial cam surface to deliver a hammering force. The pilot bit extends through a central bore of the bit body, and includes an engaging surface on its second end configured to engage a formation surrounding the wellbore.

Oil well jar

Hammer drill

A downhole apparatus connected to a workstring within a wellbore. The workstring is connected to a bit member. The apparatus includes a mandrel operatively connected to a downhole motor mechanism, an anvil member operatively formed on the bit member, the anvil member being operatively connected to the mandrel, a radial bearing housing unit operatively connected to the workstring, with the radial bearing housing unit being disposed about the mandrel, and a hammer member slidably attached to the radial bearing housing unit.

Patent DE3910515C2

System and method for drilling hammer communication, formation evaluation and drilling optimization.

Se proporcionan un sistema y un método para producir vibraciones controladas dentro de un pozo de sondeo; en un ejemplo, el sistema incluye una placa de codificadores, una placa de yunques, y un mecanismo de movimiento configurado para permitir el movimiento rotacional y traslacional de la placa de codificadores con relación a la placa de yunques para permitir que la placa de codificadores impacte repetidamente la placa de yunques para crear vibraciones; el sistema también incluye un mecanismo de control de vibraciones configurado para controlar una amplitud de las vibraciones.

Tubing Expansion

Boring apparatus and method

A boring apparatus includes an upper member and a bit body configured to rotate relative to a pilot bit. A first end of the upper member is connected to a workstring. An inner cavity of the upper member includes a first radial cam surface. A first end of the bit body is connected to a second end of the upper member such that the bit body rotates with the upper member. A second end of the bit body includes a working face. The pilot bit includes a first end disposed within the inner cavity of the upper member, and includes a second radial cam surface configured to cooperate with the first radial cam surface to deliver a hammering force. The pilot bit extends through a central bore of the bit body, and includes an engaging surface on its second end configured to engage a formation surrounding the wellbore.

Control device for percussion drill bits or probing bits

pipe expansion

Det beskrives et rørekspansjonsapparat og en fremgangsmåte ved bruk av samme, hvor rørekspansjonsapparatet omfatter: en ekspansjonsanordning som skal føres frem gjennom en lengde av et ekspanderbart rør for å ekspandere røret fra en mindre, første diameter til en større, andre diameter, hvor ekspansjonsanordningen er tilpasset til å sykle mellom en første utforming med mindre diameter og en andre utforming med større diameter; middel til sykling av anordningen mellom nevnte utforminger; og middel til fremføring av syklemidlet gjennom røret.

DEVICE CONSTITUTING IMPROVEMENT IN LARGE DIAMETER WELL DIGGING TOOLS

Patent TWI361854B

Drilling apparatus

Drilling tool

Wellbore drilling accelerator and tubular connection

A drilling accelerator that is driven from a rotational drive to generate a percussive axial motion on a drill bit. The drilling accelerator includes a drive connection to mechanically convert rotational drive to axially directed percussive motion. A wellbore tubular connection is also disclosed that transitions torque to resist back off when left hand or right hand torque is applied.

Annulus ring hole drill

An apparatus for drilling annulus ring hole, comprising: a down-the-hole (DTH) percussion hammer assembly, the DTH percussion hammer assembly comprising one or more DTH percussion hammers, an annulus ring structural housing having an outer diameter (OD) and an inner diameter (ID) for accommodating the DTH percussion hammers within space between the OD and the ID of the annulus ring structural housing; one or more drill pipes being connected serially with each other forming a string of drill pipes, the string of serially connected drill pipes being connected to the DTH percussion hammer assembly; a top pipe with one or more exhaust openings being connected to the string of serially connected drill pipes; an air or fluid distributor being connected to the top pipe; and a rotary head providing rotational turning motion for the apparatus, and the rotary head being connected to the air distributor.

Downhole wireline tool

The present invention relates to a downhole wireline tool (1) for performing a machining operation, such as milling, in a well having a top, the downhole wireline tool having a longitudinal axis, a first end configured to be connected to a wireline and a second end forming a front of the tool facing away from the wireline along the longitudinal axis, the downhole wireline tool comprising a tool housing (12), a holding section (7) having projectable parts configured to prevent a part of the downhole wireline tool from moving in a direction towards the top, a machining tool (9) arranged in the front of the tool, and a rotation unit (10) for rotating the machining tool, wherein the downhole wireline tool further comprises an oscillation device (11) having a rotational stationary part (14) being connected with the rotation unit and a rotational part (15) being connected to the machining tool, the oscillation device being configured to provide an oscillating movement of the machining tool by oscillating the rotational part in relation to the rotational stationary part.

Rotary impact well drilling system and method

A system and method for applying rotary percussive impacts to a drill bit, according to which an anvil is connected to the bit and a hammer is driven in one direction in the anvil when the bit encounters a relatively large load. Energy is stored during the movement of the hammer in the one direction and the stored energy is released to drive the hammer in a direction opposite the first direction to produce the percussive impacts.

Percussion device

A percussion device that includes: - an input side; - an output side; - at least one drive transmitter; - a drive transmitter pathway; - a percussion impactor; and - a percussion anvil; where: the drive transmitter pathway is a circumferential pathway around a longitudinal axis of the percussion device; - the drive transmitter pathway includes at least one tooth section including a lift section and a lead section; - the at least one tooth section is essentially one wavelength of a sawtooth wave; - the lift section is inclined away from a base of the drive transmitter pathway; - the lead section is a section of the tooth section which abruptly returns to the base of the drive transmitter pathway; - the input side is rotationally isolated from the percussion impactor; - the percussion anvil is attached to, or forms part of, the output side; - the percussion impactor includes an impact end and a force input end which are longitudinally opposite terminal ends of the percussion impactor; and - the impact end faces the percussion anvil; such that: when in use, and the output section is free to rotate, the at least one drive transmitter and the drive transmitter pathway are configured to act co¬ operatively to transfer the rotational motion of the input side to the output side; and - when in use and limited or no rotation of the output side is possible, the at least one drive transmitter and the drive transmitter pathway are configured to act co-operatively to increase, maintain or decrease the distance between the percussion impactor and the percussion anvil; wherein the at least one drive transmitter and the drive transmitter pathway are configured to act co-operatively to accept rotational motion from the input side and transmit a percussive and/or rotational motion to the output side.

Downhole wireline tool

The present invention relates to a downhole wireline tool for performing a machining operation, such as milling, in a well having a top, the downhole wireline tool having a longitudinal axis, a first end configured to be connected to a wireline and a second end forming a front of the tool facing away from the wireline along the longitudinal axis, the downhole wireline tool comprising a tool housing, a holding section having projectable parts configured to prevent a part of the downhole wireline tool from moving in a direction towards the top, a machining tool arranged in the front of the tool, and a rotation unit for rotating the machining tool, wherein the downhole wireline tool further comprises an oscillation device having a rotational stationary part being connected with the rotation unit and a rotational part being connected to the machining tool, the oscillation device being configured to provide an oscillating movement of the machining tool by oscillating the rotational part in relation to the rotational stationary part.

Percussion device

Well drilling tool and method for determining parameter thereof

一种钻井工具及确定其参数的方法，该钻井工具（1）包括：上游钻具（10）；下游钻头；以及冲击器（30），所述冲击器（30）连接在所述上游钻具（10）和所述下游钻头之间；在第一状态下，所述冲击器（30）使所述上游钻具（10）产生弹性压缩，在第二状态下，所述上游钻具（10）释放弹性压缩，通过所述冲击器（30）而对所述下游钻头施加冲击。这种钻井工具寿命长，并能有效降低钻井成本。

Annulus ring hole drill

An apparatus for drilling annulus ring hole, comprising: a down-the-hole (DTH) percussion hammer assembly, the DTH percussion hammer assembly comprising one or more DTH percussion hammers, an annulus ring structural housing having an outer diameter (OD) and an inner diameter (ID) for accommodating the DTH percussion hammers within space between the OD and the ID of the annulus ring structural housing; one or more drill pipes being connected serially with each other forming a string of drill pipes, the string of serially connected drill pipes being connected to the DTH percussion hammer assembly; a top pipe with one or more exhaust openings being connected to the string of serially connected drill pipes; an air or fluid distributor being connected to the top pipe; and a rotary head providing rotational turning motion for the apparatus, and the rotary head being connected to the air distributor.

Tool spinner for well drilling

System and method for drilling hammer communication, formation evaluation and drilling optimization

A system for producing controlled vibrations within a borehole comprising:- a movement mechanism configured to use mechanical energy provided by a mechanical energy source to enable translational movement of a first surface relative to a second surface to allow the first surface to repeatedly impact the second surface to produce a plurality of vibration beats, wherein the vibration beats will occur whenever the mechanical energy is provided by the mechanical energy source unless the provided mechanical energy is dampened to prevent the translational movement; and- a vibration control mechanism configured to selectively control an amplitude of the vibration beats to encode information therein, wherein the amplitude of a vibration beat is selectively controlled by dampening the provided mechanical energy to regulate the impact of the first surface and the second surface.

DEVICE WITH A LOT OF HYDRAULIC ACCUMULATORS FOR A HYDRAULIC SHOCK MECHANISM

Well drill

Drilling tool

A drilling tool includes an outer cylinder; a power rotary shaft arranged in an inner chamber of the outer cylinder; a percussion generator arranged below the power rotary shaft, having a transmission shaft extending in the outer cylinder and can be driven by the power rotary shaft to rotate around its axis, an output main shaft engaged with a lower end of the transmission shaft so as to be driven by the transmission shaft to rotate about its axis and is movable relative to the transmission shaft along an axial direction, and an percussion assembly The percussion assembly is arranged between an annulus formed between the upper end of the output main shaft and the outer cylinder and can generate reciprocating impact along the axial direction on the output main shaft. A drilling bit connected with the output main shaft extending out of the inner chamber of the outer cylinder.

Boring apparatus and method

Well drilling acceleration tool

A speed-enhancing drilling tool includes an upstream drill string (10), which has a drive motor and a first driving rod coupled therewith, a downstream drilling bit; and a percussive device connected between the upstream drilling string and the downstream drilling bit. The first driving rod extending axially and the drive motor are configured to drive the first driving rod in rotation. The percussive device has a rotary driving part having an upper end engaged with the first driving rod to rotate together therewith; and a rotary working part having an upper end engaged with a lower end of the rotary driving part and a lower end connected with the downstream drilling bit. The rotary working part can be driven by the rotary driving part to rotate about its axis, and axially movable relative thereto; and a percussion generating part arranged around the rotary working part.

Boring apparatus and method

Werkzeug und verfahren zum bohren

System and method for dual telemetry noise reduction

A system and method for controlling the frequency or amplitude of vibrations during drilling of a well. A system for generating mechanical vibrations may generate a control signal to cause two plates to impact one another with a first frequency or amplitude. The frequency or amplitude may be selected to steer the direction of drilling. In addition, a second control signal may be generated to cause the two plates to impact with a second frequency or amplitude to steer the direction of drilling, such as when the wellbore has deviated from the target path of a well plan. The control signals may be associated with one or more geological formations.

Mechanical force generator for a downhole excitation apparatus

An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass (“rotatable mass”) being rotatable relative to the other mass about the axis to cyclically vary the axial length of the assembly of the interengaged masses, a rotary drive, and an interposed spring (of any kind) between the rotary drive and the rotatable mass able to transmit torque from the rotary drive to the rotatable mass yet vary in its extent responsive to the interengaged masses.

钻井工具及确定其参数的方法

本发明涉及一种钻井工具及确定其参数的方法。该钻井工具包括：上游钻具；下游钻头；以及冲击器，所述冲击器连接在所述上游钻具和所述下游钻头之间；在第一状态下，所述冲击器使所述上游钻具产生弹性压缩，在第二状态下，所述上游钻具释放弹性压缩，通过所述冲击器而对所述下游钻头施加冲击。这种钻井工具寿命长，并能有效降低钻井成本。

Well drilling tool and method for determining parameter thereof

A well drilling tool and a method for determining a parameter thereof. The well drilling tool (1) comprises an upstream drilling tool (10), a downstream drilling bit, and an impactor (30); the impactor (30) is connected between the upstream drilling tool (10) and the downstream drilling bit; under a first state, the impactor (30) makes the upstream drilling tool (10) generate elastic compression; under a second state, the upstream drilling tool (10) is released from the elastic compression so as to apply impact to the downstream drilling bit by means of the impactor (30). The well drilling tool is long in service life, and can effectively reduce the well drilling cost.

Bohrvorrichtung

Trivella attivata e metodo di trivellazione

Percussion device