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WO/2023/070145A1 |
Drilling assembly includes drill bit 11 connected to gas injector sub-assembly 27, which is connected to the bottom of drill rod 33. The top of drill rod 33 is connected above ground to entry sub-assembly 39, which has connected atop, dr...
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WO/2023/069356A1 |
A system for a downhole tubular includes a tubular having an outer surface and an inner surface. An anchor setting system is disposed in the tubular. The anchor setting system includes a motor system. An anchor assembly is disposed on th...
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WO/2023/069354A1 |
A window cutting system includes a whipstock connector, and a window mill selectively rotationally constrained to the whipstock connector. The window mill including an outer surface, an inner surface, a passage defined between the outer ...
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WO/2023/061944A1 |
A downhole self-propelling wireline tool string (1) for propelling a tool in a well (2) and/or for providing weight on a bit, comprising a first downhole self-propelling wireline tool (1a), comprising a first tool body, a first electric ...
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WO/2023/064668A1 |
Methods for identifying mud motor stall events are provided herein. One method includes receiving drilling sensor data including a pressure measurement signal, calculating a smoothed pressure signal, calculating a pressure fluctuation si...
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WO/2023/025615A1 |
A sealing arrangement, a floating spindle, and a method for sealing a rock drilling component. The sealing arrangement (13) com- prises aa sealing space (14) surrounding a drilling component (18) to be sealed. A oas- ing (15) is arranged...
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WO/2023/014382A1 |
A downhole turbine may include a stator disposed in a turbine housing, a rotor disposed between the stator and the turbine housing and wherein the rotor includes an outer housing, a gap that separates the stator and the rotor, wherein th...
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WO/2023/009131A1 |
The disclosure presents apparatuses and systems to reduce drag and friction forces on a drill string located downhole a borehole. The drill string can have two or more movement isolators to allow a movement sensitive tool to be movement ...
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WO/2023/008999A1 |
The present invention relates to a motor assembly for driving downhole tooling, a downhole tooling and drilling rig comprising such motor assembly, and a method for manufacturing the rotor and rotatable stator of such motor assembly. The...
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WO/2023/287639A1 |
Systems and methods for damping vibrations of downhole systems are described. The systems include a downhole component configured to be disposed downhole and a shockdamping system at least one of on or in the downhole component, the shoc...
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WO/2023/282934A1 |
A drilling system for drilling a borehole. The drilling system may include a drill string, a drill bit coupled to the drill string, a mud motor coupled to the drill string uphole of the drill bit and operable to rotate the drill bit via ...
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WO/2022/256045A1 |
A drill string for drilling a borehole. The drill string may include a downhole motor operable to rotate the drill string and a centralizer assembly. The centralizer assembly may include an outer housing, a lower sub threadably engaged w...
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WO/2022/250603A1 |
Rotation unit for drilling comprising a motor, reduction gear and output shaft arranged in sequence with a common center axis in a cylindrical housing dimensioned to be inserted into the borehole. The motor is a liquid-powered gear motor...
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WO/2022/231407A1 |
The invention relates to the field of mining, and more particularly to means for drilling boreholes using downhole hydraulic machinery. The present downhole positive displacement motor comprises a rotor having a stator rotatably mounted ...
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WO/2022/229363A1 |
The present invention relates to a hydraulic down-the-hole hammer. The hammer comprises an elongate shaft and a piston having a central bore therethrough, the piston slidably mounted for reciprocal movement on the shaft and arranged to i...
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WO/2022/225096A1 |
A low-noise vibration rock drill according to the present invention comprises: a main body part having a sound-insulation space therein and having a support-coupling part at one end portion thereof; a drifter, which is supported by a for...
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WO/2022/208095A1 |
A downhole rotary drive apparatus (10) for driving a bit (12) used to drill or ream a borehole (B) comprises a body (14) configured for coupling to, or forming part of, a tubular string (S1;S2;S3) for running into the borehole (B) and an...
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WO/2022/212660A1 |
Rotor bearings are provided. The motor bearing can be used in an electric submersible pump motor. The bearing can include a body and one or more anti-rotation pins disposed partially in a groove in an outer surface of the body and config...
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WO/2022/200342A1 |
A hammer drill assembly for coupling to a drill string wherein the drill bit is releasably attached to the driver sub via a retaining sleeve; wherein the retaining sleeve comprises a body that extends between a ring at its forward end an...
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WO/2022/203672A1 |
A drilling system for drilling a well. The drilling system may include a drillstring, a gas detector, and a computer system. The drillstring may include a downhole motor operable to rotate a drill bit and the downhole motor may include a...
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WO/2022/203675A1 |
A first characteristic of a first discharge of electrodes of a pulse power drilling assembly in a borehole of a subterranean formation is determined. The first characteristic is based on a measurement of the first discharge. A second cha...
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WO/2022/200092A1 |
Method for controlling a compressor (10) which drives a pneumatic tool, with a maximum allowed pressure (p_max) and an associated compressed air consumption (q_max), the method comprising the step of regulating the operating pressure (p_...
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WO/2022/193833A1 |
A rotation guide tool, comprising an upper transmission shaft assembly (1), an upper universal shaft assembly (2), a straight housing (3), an upper screw motor stator-rotor (4), a flexible tube (5), a control valve (6), a measurement dev...
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WO/2022/193373A1 |
A high-efficiency drilling system and drilling method based on rock breaking by means of downhole rotation and percussion stepping in combination with unloading. The system comprises a housing (1), a driving assembly (2), a universal cou...
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WO/2022/178582A1 |
A damper apparatus for use in pneumatic percussion drilling comprises a body having one or more damper apparatus supporting a measuring instrument. Each damper apparatus dampens shock/vibration from the pneumatic percussion drilling that...
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WO/2022/178583A1 |
A drill rod comprises a body comprising one or more fluid supply channels, a fluid return channel and one or more compartments.
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WO/2022/157347A1 |
The present invention relates to a downhole wireline tool string for removing material of a component in a well downhole by an annular grinding area, the downhole wireline tool string having an axial extension and a centre tool axis, a f...
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WO/2022/155383A1 |
Systems and methods for reducing friction between a casing string and a bore of a subterranean well when moving the casing string within the bore of a subterranean well include a roller bearing assembly. The roller bearing assembly has a...
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WO/2022/148867A1 |
The invention relates to a deep drilling method comprising a step of drilling rock at a working face by means of a drilling head for excavating a well (11) having a substantially circular cross-section. The drilling head excavates the we...
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WO/2022/131916A1 |
A ground drill for drilling a borehole in the ground, the ground drill having a longitudinal drill axis extending along the borehole and a drill end associated with a bore hole end having a bore hole end surface transverse to the longitu...
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WO/2022/132123A1 |
Disclosed herein are embodiments of a pressure compensation piston and embodiments of rotary seal assemblies. In one embodiment, a pressure compensation piston for use with a rotary seal assembly includes a stepped piston having an openi...
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WO/2022/132292A1 |
A method of communication along a shared voltage line is disclosed. In pulse power drilling, a generator charges applies voltage to a shared voltage line, which capacitively charges electrodes for formation drilling. While the generator ...
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WO/2022/120380A1 |
A method can include receiving real-time data during a drilling operation performed by a drillstring that includes a mud motor and a bit characterized by an expected performance profile; determining actual performance of the drillstring ...
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WO/2022/108656A1 |
A seal system includes a first annular component having a radially-outer surface with a first threaded portion and a first sealing portion, wherein the first sealing portion has a first angled surface that is oriented at a first angle re...
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WO/2022/105343A1 |
Provided are a large-diameter combination impactor and a down-the-hole drilling rig comprising same; the impactor comprises a base (8), a first joint (1) connected to a drill pipe, a first fixing plate (2) arranged sleeved on said first ...
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WO/2022/103409A1 |
A rotary transfer mechanism is disclosed for a motor, pump, or other downhole tool that accommodates the eccentric motion of a rotor without the need for a flex shaft, articulating joint or CV joint. In one configuration, the rotor is co...
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WO/2022/101344A1 |
The invention relates to a mobile drilling rig (1) for drilling boreholes (50) in a subsurface (51), said drilling rig comprising: a drive unit (3) for providing energy; a drilling unit (4) having a drive motor (5) and a drill head (6) d...
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WO/2022/096661A1 |
The present invention relates to a drilling device. The device comprises at least one drill rod, the or each drill rod having a first cylindrical wall defining an elongate chamber for receiving a working fluid to form a fluid column, the...
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WO/2022/071838A1 |
The invention relates to a rotary device (101 ) for a down-the-hole hammer (1 ), which rotary device is accommodated in a rotation motor housing (3) and mounted behind a drill housing (2) for transferring a torque to a drill bit (8) and ...
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WO/2022/067376A1 |
The present disclosure is directed to a mud hammer comprising: a piston barrel including at least one exhaust port configured to receive a single flow of drilling fluid including drilling mud; a piston positioned within the piston barrel...
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WO/2022/067312A1 |
A submersible well pump assembly having a motor with a shaft, a stator, a rotor coupled to the shaft, and bearing sleeves between the shaft and a bearing assembly. The rotor includes a number of rotor sections located along an axis of th...
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WO/2022/066608A1 |
A drilling assembly includes a drill string configured to be disposed within a wellbore. The drilling assembly also includes a sub fluidically coupled to the drill string. The sub includes a mandrel fixed to the drill string and defines ...
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WO/2022/052796A1 |
A diaphragm wall down-the-hole hammer trenching machine, comprising a crane (1), a guide frame (2), a push-pull device (3), a cluster down-the-hole hammer (4), a gas collecting hood (5), a high-pressure medium pipe or cable (6), and a sl...
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WO/2022/046630A1 |
A pressure control system includes a housing having a bore and a first pair of opposed rams positioned within the housing. The first pair of opposed rams is configured to move between a retracted position and an extended position relativ...
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WO/2022/040522A1 |
A technique facilitates efficient well production in relatively low volume applications, e.g. applications after well pressure and volume taper off for a given well. According to an embodiment, use of an electric submersible progressive ...
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WO/2022/035808A1 |
A lubricant system for providing a lubricant to a machine includes one or more sensors configured to measure a physical property of the lubricant system, and a controller in communication with the one or more sensors. The controller is c...
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WO/2022/026572A1 |
A mud motor and a drill string having the mud motor. The mud motor includes a stator and a rotor. A lining between the stator and the rotor includes fibers forming a fiber pattern. The lining is a coating of at least one of a lobed inner...
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WO/2022/019931A1 |
A system for drilling a well includes a gripping unit provided at a rig above a surface of the well for holding a top end of a drill string in the well, a liner releasably connected to the drill string, and a downhole motor installed on ...
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WO/2022/020143A1 |
A direct drive drawworks having a first electric motor comprising a first output shaft, a second electric motor comprising a second output shaft, and a drum for storing a flexible line. The drum may be disposed between the first electric...
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WO/2022/013515A1 |
An apparatus for driving a drillable drill bit of a drilling assembly and a method of manufacturing of the apparatus for driving the drillable drill bit is provided. The apparatus employs a drilling assembly that includes one of a casing...
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