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WO/2024/086085A1 |
A drilling system may determine a change in motor torque and/or a pressure drop of a downhole motor based on a flow of a drilling fluid through the downhole motor. The drilling system may determine a change in bit torque of a bit with re...
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WO/2024/079503A1 |
An apparatus for generating an ultra-high pressure fluid jet during drilling comprises a drilling motor; a housing structure connected with the drilling motor; and a drill bit assembly connected at the downstream end of the housing struc...
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WO/2024/081001A1 |
Systems and methods of the present disclosure relate to actuator assemblies for downhole tools. An actuator assembly comprises a motor, a spring and a hammer. The spring is adjacent to the hammer, and the hammer operable to compress the ...
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WO/2024/076839A2 |
The disclosure describes a BHA that generates electricity downhole. The generated electricity can then be utilized with an electric motor to turn the drive shaft and for drive shaft orientation. The disclosure also describes a more accur...
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WO/2024/059646A1 |
A progressive cavity device includes a stator, a rotor positioned within the stator, a driveshaft, and a joint coupling the driveshaft and the rotor. The joint includes a pivotable member fixably coupled to and engaged with an end of the...
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WO/2024/042470A1 |
This invention relates to a lightweight drill (1) and more particularly, but not exclusively, to a lightweight hydraulic rock drill which makes use of a reciprocating hammer or chisel, used for making holes. The lightweight drill (1) com...
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WO/2024/039384A1 |
A mechanical clutch allows for transfer of torque downhole that may avoid the need for a hydraulic electrical coil-driven piston. In one or more examples, an anti-rotation guide for a downhole clutch includes a guide track and a follower...
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WO/2024/028662A1 |
An equivalent circulating density (ECD) reduction tool can include a positive displacement fluid motor, and a fluid pump configured to be driven by the fluid motor. The fluid pump can include a fluid inlet and a fluid outlet disposed on ...
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WO/2024/026294A1 |
A pack system for a downhole assembly is provided. One end of the pack system is connected to a drill bit for drilling a wellbore, the other end of the pack system interfaces with a motor to receive torque. The pack system described here...
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WO/2024/017523A1 |
The invention relates to a drilling assembly for earth or rock drilling, comprising: an inner pipe which has, at its distal end facing the ground, an inner drilling tool for removing ground material, and which can be connected, at its pr...
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WO/2024/018015A1 |
The present invention relates to a closed-loop 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 a...
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WO/2024/008585A1 |
A wellbore percussive drilling apparatus comprises a support and a transmission shaft axially moveable relative to the support in reverse first and second directions (i.e., the second direction is opposite to the first direction), wherei...
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WO/2023/245945A1 |
A compound drilling and slide drilling combined directional drilling control tool and method. The drilling control tool comprises a housing, and a driving shaft (1) provided with a fluid input channel (1a), a rotor (14) provided with a f...
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WO/2023/244250A1 |
Systems and methods of the present disclosure relates to propelling downhole tractors in wellbores. A downhole tractor drive module comprises an output shaft; a harmonic drive gear driven by the output shaft; and at least one wheel, wher...
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WO/2023/244157A1 |
The invention relates to a pressurized liquid driven downhole drilling machine (1) with a soft start from flush position, wherein a drive surface of an impact piston (20) is alternately pressurized and pressure relieved, depending on the...
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WO/2023/237960A1 |
Disclosed is a plunger mixer device deployable within a hollow shaft injection drill bit system. The plunger mixer device includes a motor, a piston, and a plunger motor assembly. The motor is connected to a feeder auger tip. The piston ...
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WO/2023/235940A1 |
A compressed fluid driven downhole system (12) comprises a drill string (16) forming a fluid flow path (20). The drill string (16) has an up hole end and a down hole end. A downhole tool (14), which is driven by compressed fluid is coupl...
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WO/2023/232393A1 |
The invention relates to civil engineering machine for forming a hole in the ground, the civil engineering machine comprising: a machine frame (12); a holding device (14) in an upper region of the machine frame (12) for holding the civil...
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WO/2023/217950A1 |
The invention relates to a hydraulic switch (1) comprising a separation chamber (2) which has an inlet opening, a first outlet opening (21) and a second outlet opening (22), wherein the inlet opening is connected to an inlet channel (4) ...
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WO/2023/211492A1 |
A linear electromechanical actuator with a failsafe design may be used with a downhole flow control system. In one example, a subsurface safety valve for controlling flow of production fluids includes a valve closure element moveable bet...
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WO/2023/211487A1 |
A wellbore tractor is provided. The wellbore tractor includes a single hydraulic line and at least one valve disposed along the single hydraulic line. At least two pairs of drives hydraulically coupled with the single hydraulic line such...
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WO/2023/209026A1 |
The present invention relates to a wireline intervention tool string (1) for operating in a well (2) having a longitudinal axis, a top (51) and a bottom (52), comprising a tool housing (3) having a longitudinal tool axis, a first part co...
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WO/2023/198609A1 |
The present invention relates to a drill bit assembly (1) for a reverse circulation down- the-hole hammer (100). The assembly comprises a percussion bit (2) having a head portion (3) with a cutting face (5) at a forward end thereof with ...
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WO/2023/198568A1 |
A percussive drilling assembly (100) configured to form part of a drill string is disclosed. The drilling assembly comprises a top element (110) and a piston case (120), wherein the top element is configured to be connected to the piston...
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WO/2023/186055A1 |
A drilling tool, a drilling method and a drilling guiding method are disclosed. The drilling tool comprises: a drill bit (1), a downhole motor, a force transmission mechanism (11), a control device (31) and an attitude measurement device...
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WO/2023/177330A1 |
The present disclosure relates to a damping arrangement (10) for a hydraulic rock drilling machine, and to a hydraulic rock drilling machine comprising such a damping arrangement. The damping arrangement comprises a housing (4) and a dam...
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WO/2023/168382A1 |
A method for determining a total torque output at a drill bit includes receiving an on-bottom pressure and an off-bottom pressure. The method also includes determining a differential pressure based upon the on-bottom pressure and the off...
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WO/2023/152404A1 |
A drillstring anchor for reacting torque from a drillstring to a wellbore, the drillstring anchor comprising: a channel for receiving a downhole portion of a drillstring so as to be rotationally engaged therewith; multiple segments dispo...
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WO/2023/136839A1 |
A positive displacement motor (PDM) is provided comprising an outer housing, a thermoplastic stator and a rotor. The PDM may additionally include a mechanism that allows the stator to be removable from the PDM when the PDM is not in oper...
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WO/2023/132434A1 |
The present invention relates to: an under-reaming apparatus which can enlarge a diameter by hitting the side of a bottom portion of a borehole in the bored ground by using pneumatic or hydraulic fluid pressure, and particularly prevent ...
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WO/2023/128842A1 |
A down-the-hole, DTH, hammer (1) configured for operation under the influence of motive fluid, the DTH hammer comprising: a housing (80) extending between a first end (81) and a second end (82) along a longitudinal axis of the DTH hammer...
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WO/2023/128844A1 |
A down-the-hole, DTH, hammer (1) configured for operation under the influence of motive fluid, the DTH hammer comprising: a housing (80) extending between a first end (81) and a second end (82) along a longitudinal axis of the DTH hammer...
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WO/2023/128843A1 |
A check valve (10) for use with a down-the-hole, DTH, hammer (1) to control flow of a motive fluid, said check valve comprising: at least one through-going first internal passage defining a first flow path for the motive fluid; and at le...
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WO/2023/129130A1 |
Systems and methods for cold-spraying coatings on rotors in motor assemblies for improving reliability of motor assembly use downhole in wellbores is provided. For example, a motor assembly can include a stator positioned downhole in a w...
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WO/2023/129572A1 |
A piston actuated drilling tool (10) includes a casing (12) and a guide sleeve (18) disposed within the casing in proximity to the top end of the casing. A piston (20) is slidably disposed within the casing for reciprocating movement the...
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WO/2023/121677A1 |
Piston-less downhole tools and piston-less pressure compensation tools are presented. The piston-less downhole tool includes a first chamber comprising a first fluid, the first fluid being a fluid that thermally expands in response to an...
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WO/2023/113798A1 |
The disclosure provides for a bottom hole assembly that comprises a stator solenoid winding transmitter assembly operable to generate a magnetic field. The stator solenoid winding transmitter assembly comprises a coil comprising a plural...
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WO/2023/113781A1 |
Certain aspects and features relate to a drilling system usable to drill a borehole. The drilling system may include a first housing defining a main fluid flow path and a second housing defining a bypass flow path toward an annulus of a ...
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WO/2023/107112A1 |
The disclosure provides for a method for identifying a mud motor drilling mode. The method comprises accessing historical run information stored in a memory of a controller and determining drilling measurements based on the historical ru...
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WO/2023/104899A1 |
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...
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WO/2023/102291A1 |
A downhole motor or pump assembly that includes a stator and a rotor rotatable within the stator. The stator includes a tubular housing and an overlay deposited by cold spray onto an interior of the housing to form overlay lobes along a ...
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WO/2023/101666A1 |
A drilling system for drilling a wellbore using drilling fluid includes a drillstring, a drill bit coupled to the drillstring, and a mud motor coupled to the drillstring and operable to rotate the drill bit by rotating a driveshaft with ...
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WO/2023/097131A1 |
A downhole motor or pump assembly that includes a housing that includes a metal. A stator that includes an elastomer compound with an uncured plasticizer is secured and sealed within the housing using an adhesive system that includes an ...
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WO/2023/086946A1 |
Systems and methods for adjusting the power provided by an electric drive system to an ESP motor through an electrical network based on a model of the system and real-time inputs indicating operating conditions of the system. Some embodi...
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WO/2023/086841A1 |
A method for supplying, via an electrical interface, an output electrical power to an electrical load that is downhole in a borehole formed in a subsurface formation, includes generating mechanical energy from a flow of a fluid being del...
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WO/2023/081865A1 |
The present invention comprises a flexible coupling device, system and method for transferring high torque loads and complex rotary motion between components or devices. Specifically, high torque loads and complex rotary motions are tran...
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WO/2023/075786A1 |
A downhole tractor assembly operable in a wellbore that includes a tractor body and a tractor wheel assembly. The tractor wheel assembly includes a tractor wheel with teeth around a circumference of the wheel and grooves between adjacent...
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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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