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公开(公告)号：US12044076B2
公开(公告)日：2024-07-23
申请号：US17340012
申请日：2021-06-05
申请人： PREMIERE, INC.
IPC分类号： E21B17/043 , E21B4/18 , E21B17/02
CPC分类号： E21B17/021 , E21B4/18 , E21B17/043
摘要： An apparatus for transferring torque comprising a pipe handling assembly configured to use fluid pressure to provide torque forces to set or release slips from a pipe. Set down force or other frictional measures on a pipe collar are not required. A method to create reactive torque force comprising a series of gears interconnected with each other through a clutch that can be engaged and disengaged. A link may be provided to a top drive rail via a gripperbox which provides reactive force to stop rotation of a power screw female (threaded nut) to facilitate threading action to set or release slips on pipe. Reactive force may be created using a plurality of axial pistons attached to a moveable half of a hirth coupling. Other friction-creating members (such as, for example, a brake pad material or similar material) may be used to create frictional forces between two surfaces.
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公开(公告)号：US11885190B2
公开(公告)日：2024-01-30
申请号：US17478459
申请日：2021-09-17
摘要： An apparatus for cutting sections of a wellbore tubular includes a housing shaped to enable movement along an interior of the tubular. The housing has an upper end arranged to connect to a conveyance and a lower end comprising a guide. Cutting materials are disposed in the housing and arranged to cut the wellbore tubular in two, longitudinally spaced apart circumferential cuts and at least one longitudinal cut extending between the circumferential cuts. The cutting materials are arranged to create the circumferential cuts simultaneously or with a time delay chosen to optimize energy created when cutting. A method for cutting wellbore tubulars includes positioning the apparatus at a selected position in the wellbore and actuating the cutting materials.
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公开(公告)号：US11773673B2
公开(公告)日：2023-10-03
申请号：US17309239
申请日：2018-11-12
发明人： Heping Xie , Mingzhong Gao , Ling Chen , Zhilong Zhang , Jun Guo , Zetian Zhang , Ru Zhang , Yiqiang Lu , Cong Li , Zhiqiang He
摘要： A coring drill tool driving structure has a driving motor (7), an outer cylinder (23) and a coring drill tool (8). The driving motor comprises an outer rotor (73) and an inner stator (75), the inner wall of the outer rotor and the outer wall of the inner stator are provided with ribs (77) mutually matched, the outer rotor and inner stator are in clearance fit, the clearance between the outer rotor and the inner stator is a driving liquid flow path (74), the outer rotor length is smaller than the inner stator length, the outer rotor is located between front and rear ends of the inner stator, the outer rotor is connected to the outer cylinder, a front end of the outer cylinder is connected to the coring drill tool, and a rear end of the inner stator is connected to a coupling (76).
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公开(公告)号：US20190249505A1
公开(公告)日：2019-08-15
申请号：US16186861
申请日：2018-11-12
摘要： A gripper mechanism for a downhole tool is disclosed that includes an eccentric linkage mechanism. In operation, an axial force generated by a power section of the gripper expands the linkage mechanism, which applies a radial force to the interior surface of a wellbore or passage. A sliding portion allows the gripper to slide along a surface of the formation in response to the radial force applied to the interior surface of the wellbore or passage.
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公开(公告)号：US20190218875A1
公开(公告)日：2019-07-18
申请号：US16333706
申请日：2016-12-27
发明人： Lizheng Zhang
IPC分类号： E21B29/00
CPC分类号： E21B29/002 , E21B4/18
摘要： A rotary tool for machining a material in a downhole environment, includes a drive train, a lead screw connected to and rotatable by the drive train, a linear block engaged with but not rotatable by the lead screw so as to convert the rotation of the lead screw into linear motion, a machining tool rotatable by the lead screw and movable linearly by the linear block to machine the material, and where the machining tool machines the material in a series of steps.
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公开(公告)号：US20180274301A1
公开(公告)日：2018-09-27
申请号：US15921615
申请日：2018-03-14
IPC分类号： E21B7/20 , E21B4/18 , E21B33/037 , E21B7/136 , E21B41/08
CPC分类号： E21B7/20 , E21B4/18 , E21B7/136 , E21B33/037 , E21B41/08
摘要： A method for excavating a well cellar includes lowering an excavating apparatus having a cellar liner therein to a bottom of a body of water. The well cellar is excavated while contemporaneously lowering the cellar liner into the well cellar until a top of the cellar liner is substantially level with the bottom of the body of water. A pilot well is excavated below a bottom of the cellar. A well head support pipe is inserted into the pilot well. The bottom of the well cellar and a top of the cellar liner are covered.
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公开(公告)号：US10056815B2
公开(公告)日：2018-08-21
申请号：US14502338
申请日：2014-09-30
CPC分类号： H02K41/031 , E21B4/04 , E21B4/18 , H02K1/12
摘要： An apparatus for use in a borehole may include a rotor having at least one set of magnetic elements and a cylindrical stator having a winding flowing current in a direction transverse to a long axis of the stator. The polarity of each magnetic element of the rotor may be arranged to alternate along a long axis of the rotor. The stator may be in sliding engagement with the rotor and have a core formed at least partially of laminations aligned along a plane co-planar with the long axis of the stator. Energizing the winding principally causes relative sliding between the rotor and the stator. A method for performing an operation in a borehole includes forming a well tool having at least one linear motor as described above, conveying the linear motor into the borehole, and operating a well tool by activating the linear motor.
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公开(公告)号：US10018038B2
公开(公告)日：2018-07-10
申请号：US14898144
申请日：2014-09-19
发明人： Yongren Feng , Zhibin Tian , Tao Lu , Liping Liu , Guiqing Hao , Wenquan Zhang , Xiaodong Chu , Zanqing Wei , Tiemin Liu , Fen Han
摘要： A drilling type sidewall coring apparatus, comprising: a main body, a transmission device, a bit mounted on the transmission device, a rack accommodated in the main body, and a plurality of first hydraulic oil cylinders, the transmission device mounted on the rack in a rotatable manner, the first hydraulic oil cylinders mounted on the main body, pistons of the first hydraulic oil cylinders connected with the rack, the telescopic motion of the pistons of the first hydraulic oil cylinders driving the rack to perform radial motion in the main body so as to make the bit protrude or retract from the main body. The electric motor is mounted in the main body and connected with the right angel speed reducer by the soft shaft. The electric motor transmits power by the soft shaft and the right angle speed reducer to drive the bit to rotate, the transmission efficiency is higher.
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公开(公告)号：US09988868B2
公开(公告)日：2018-06-05
申请号：US14977461
申请日：2015-12-21
IPC分类号： E21B17/20 , E21B23/00 , E21B23/01 , E21B23/04 , E21B23/10 , E21B4/18 , E21B19/22 , E21B17/10 , E21B31/20
CPC分类号： E21B23/10 , E21B4/18 , E21B17/1021 , E21B17/20 , E21B19/22 , E21B23/00 , E21B23/01 , E21B23/04 , E21B31/20 , E21B2023/008
摘要： A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the passage. The toes are displaced by the interaction of a driver slidable on the mandrel and a driver interaction element on the toes. In one embodiment, the toes are displaced by the interaction of rollers and ramps that are longitudinally movable with respect to one another. In another embodiment, the toes are displaced by the interaction of toggles that rotate with respect to the toes.
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公开(公告)号：US09869142B2
公开(公告)日：2018-01-16
申请号：US14457627
申请日：2014-08-12
申请人： PCM
发明人： Francois Millet , Stephen Burrows
CPC分类号： E21B17/1057 , E21B4/18 , E21B17/10 , E21B17/1014 , E21B23/01 , E21B43/126
摘要： A torque anchor intended to block the rotation of a production string with respect to a casing of a well; the torque anchor comprising a body and anchor cassettes comprising a wheel having a circumference and a wheel spindle supporting said wheel, a contact point of the circumference of the wheel being intended to come into contact with the casing, an opposite point being arranged diametrically opposite the contact point.For each anchor cassette, the wheel is mounted on the end of the wheel spindle; a positioning angle comprised between 30° and 180° being defined between a first straight line passing through the center of the casing and the contact point and a second straight line passing through the center of the casing and the opposite point.
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