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Patent Searching and Data


Matches 1 - 50 out of 2,643

Document Document Title
WO/2018/013292A1
A bearing assembly for a downhole drilling motor can include a housing having an inner wall, an outer bearing race within the housing, and an inner bearing race. The outer bearing race can include a reduced-diameter portion forming a gap...  
WO/2017/211675A1
The invention relates to a drill drive for a drilling rig with a motor, by which a drive shaft is rotationally driven which is supported in a rotatable manner in a housing with a bearing arrangement having at least a radial bearing, a fi...  
WO/2017/209745A1
An assembly can include a cylindrical torque-resisting component that includes a flange portion, a first face, a through bore, and a counter-bore that defines a second face; a cylindrical adapter component that includes external threads,...  
WO/2017/204947A1
A downhole pulsing apparatus having a tubular housing, a first valve assembly positioned in the housing, first and second turbine stages each comprising a stator and a rotor positioned in the housing below the first valve assembly and a ...  
WO/2017/197442A1
A fluid pulse apparatus for down hole drilling having a turbine assembly actuated by a flow of drilling fluid. The apparatus has a narrowed fluid flow section that cooperates with a piston that moves between an open a fluid flow restrict...  
WO/2017/189284A1
A method for determining a rotational frequency of a positive displacement motor positioned in a downhole portion of a drill string, the method including: providing at least one measurement device for measuring a property of a part of th...  
WO/2017/177335A1
A rotary drive includes a housing; a shaft rotatably mounted within the housing and rotatable about a drive axis; a passage internal the housing and extending circumferentially about the shaft; a stator vane within the passage; and a rot...  
WO/2017/174488A1
The invention relates to a magnetic propulsion system (6) to exert a forward thrust and/or a counter hold on the drill components of a drilling system, wherein the drill components are or can be tightly coupled to a tubular member (604) ...  
WO/2017/174483A1
The invention relates to a hydraulic motor (2), comprising a cylindrical motor housing (201) with a central cylindrical rotor (202) carrying longitudinal vanes (208), wherein the vanes (208) are provided at the outer surface of the rotor...  
WO/2017/168272A1
A wellbore motor includes a lower drive shaft rotatably supported in a housing. The housing has at least one coupling element to couple the housing to a drill string. A coupling connects the lower drive shaft to a power section disposed ...  
WO/2017/164713A1
A water hammer device of the present invention comprises: a hammer body having a bit unit, which performs a drilling operation and is provided at an end portion thereof; a piston slidably provided in the hammer body, and having a working...  
WO/2017/158573A1
A gear system (10) comprises a modular gear assembly (124,125,127) which is housed in a gear assembly housing (114). The gear assembly housing (114) is adapted to be connected to another gear assembly (124,125,127) which drives an output...  
WO/2017/142415A1
The invention relates to a downhole tractor comprising a hydraulic supply line (200, 300) for actuating hydraulic components (160-1..160-4, 170-1..170-4). The downhole tractor further comprises a hydraulic power pack (100) coupled to the...  
WO/2017/134460A1
A reaming assembly (10) having an inner mandrel (12) including spiral lobes disposed on an outer surface thereof. The inner mandrel (12) is hollow and is sized large enough to freely pass a standard drill bit therethrough. The reaming as...  
WO/2017/118963A1
The invention relates to a down-the-hole drill hammer. A reciprocating piston (2) has a piston head (3) with a piston stem (4) that is withdrawn from a piston stem bush (16) to exhaust a return chamber (18). A control rod (14) is support...  
WO/2017/117651A1
A radial bearing for transmitting a radial load, including a first radial bearing component defining a first radial bearing surface and an orientable second radial bearing component defining a second radial bearing surface. At least a po...  
WO/2017/119823A1
The present invention relates to a slick line and/or fibre optic cable pulling wellbore and/or tubing pulling tool including a propulsion module (64) having a main section (1 ) and a hinged propulsion arm (2). A propulsion wheel (6) with...  
WO/2017/106479A1
A force stacking assembly for use with an earth boring system that includes a series of actuators (37) that each generate a force, and that are arranged to create a combined force that is cumulative of all of the actuators. The actuators...  
WO/2017/100552A1
A hydraulic tool includes a stator, a rotor, and a removable coating. At least one of the stator and the rotor comprises a resilient material. The removable coating has a thickness compensate for expected swelling of the resilient materi...  
WO/2017/100219A1
A coring tool including a coring bit operable to obtain a core sample of a subterranean formation from a sidewall of a wellbore extending into the subterranean formation. The coring tool also includes a storage tube, an actuator operable...  
WO/2017/100648A1
A downhole system for use in a wellbore in a subterranean formation includes an electromechanical motor or generator. The electromechanical motor or generator may, respectively, be configured convert electricity to mechanical energy or c...  
WO/2017/097692A1
The invention relates to an apparatus and to a method for driving a cavity (103) in mining, wherein an extraction drum (139) rotatable about a drum axis of rotation (233) is rotatably mounted in relation to a longitudinal axis (218) by m...  
WO/2017/095466A1
A method of manufacturing a power unit for a downhole drilling motor includes fabricating a stator that provides two or more stator lobes that define an internal profile, and fabricating a rotor that provides at least one rotor lobe that...  
WO/2017/095877A1
A top drive system with a removable flange is provided. In one embodiment, a top drive (28) includes a quill (46), a motor (44) coupled to drive rotation of the quill, and a swivel (42) including a housing (62) and a bearing (64) dispose...  
WO/2017/086979A1
Methods and apparatus are disclosed for retaining components in a downhole motor in the event of a mechanical separation or failure of one or more components therein. As described, the retention mechanism does not require a threaded conn...  
WO/2017/086967A1
Methods and apparatus are disclosed for retaining components in a downhole motor in the event of a mechanical separation or failure of one or more components therein. As described, the retention mechanism does not require a threaded conn...  
WO/2017/074352A1
A method and apparatus according to which an output of a power generation system is controlled. In one embodiment, the power generation system includes a turbine and a feedback control system. The turbine includes a rotor to which a firs...  
WO/2017/072746A1
A well-drilling apparatus, a system and a method which may be operable by hand or by mechanical means. The well-drilling apparatus comprises: a drill stem comprising a tubular elongated body, the tubular elongated body comprising a plura...  
WO/2017/074259A8
A drive system housing is provided with an engagement-disengagement mechanism that is advantageous to connect (make up) or disconnect (break out) drill bit or other device connection from the drive system housing. The drive system housin...  
WO/2017/074259A1
A drive system housing is provided with an engagement-disengagementmechanism that is advantageous to connect (make up) or disconnect (break out)drill bit or other device connection from the drive system housing. The drive systemhousing c...  
WO/2017/069768A1
A process of manufacturing a downhole tool having hardfacing erosion protection formed on the inner surface of a confined space having a cross-sectional width of at least 26 millimeters, such as an inlet port or an inner bore of a drilli...  
WO/2017/069730A1
A catch assembly is provided for a downhole motor assembly of a drilling system. The catch assembly may include a catch basket that may be coupled to a saver sub. The saver sub may be coupled to a stator tube housing a rotor of a downhol...  
WO/2017/065738A1
In accordance with embodiments of the present disclosure, a hybrid drive for use within a rotary steerable drilling tool is provided. The hybrid drive may enable improved directional drilling performance of the rotary steerable drilling ...  
WO/2017/063051A1
A hydraulic anchoring assembly (10, 10a), and method of its use, for anchoring and sealing an insertable progressing cavity pump on rods in a well. The assembly (10, 10a) has one or more cup seals (42, 42a), upstream of one or more infla...  
WO/2017/065775A1
A clamping assembly may include a split-ring device and bearing for coupling to a driveshaft. The split-ring device may comprise split-ring shells having protrusions on an interior radial surface for positioning in grooves adjacent to ra...  
WO/2017/054472A1
A torsion impact speed accelerating device comprises a main body (1), a chopping board member (2), an impact hammer member (3), a conversion member (4), a mandrel (5) and a throttle nozzle (6). An inner limit boss (7) is fixed at an uppe...  
WO/2017/056026A1
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 circumfer...  
WO/2017/048247A1
Methods and apparatus are disclosed for coupling components within a downhole motor drivetrain, and particularly to improving the torque carrying characteristics through threaded couplings in the drivetrain that extends between the mud m...  
WO/2017/048279A1
Various embodiments include determining an alternating current (AC) voltage and frequency of a supply voltage coupled to a circuit input. The circuit includes a soft starter circuit that is coupled between the circuit input and a first s...  
WO/2017/046584A1
A drilling assembly comprises an outer housing, a drive shaft, an articulated steering shaft assembly, a drill bit at end of steering shaft assembly and an eccentric fulcrum support though which the steering shaft assembly passes. The fu...  
WO/2017/034550A1
A method and apparatus for transmitting torque in a downhole assembly. The apparatus includes a driver sub with an annular body defining an internal surface, a portion of the internal surface of the driver sub defining a contact surface;...  
WO/2017/027964A1
A downhole assembly and method are provided for selective activation of a motor in a drilling string. The downhole assembly includes a stator and a rotor assembly. The rotor assembly comprises a rotor body having a fluid passage extendin...  
WO/2017/029614A1
The invention relates to a drive system of the type which is suitable for use with a downhole used in oil well interventions. The invention provides an improved tractor whose speed is controllable remotely, such as from the well bore sur...  
WO/2017/029606A1
This invention relates to a downhole tractor drive system, suitable for use in oil well interventions. The invention provides an improved tractor whose speed is controllable remotely, such as from the well bore surface, using hydraulic m...  
WO/2017/027983A1
A bearing assembly for use in a bottom hole assembly includes a reactive portion and a fluid restrictor portion, the portions being operatively coupled by a mandrel of the bottom hole assembly. The fluid restrictor portion comprises a pi...  
WO/2017/029622A1
This invention relates to a drive system of the type which is suitable for use with a downhole used in oil well interventions. The invention provides an improved tractor whose speed is controllable remotely, such as from the well bore su...  
WO/2017/029621A1
This invention relates to a drive system of the type which is suitable for use with a downhole used in oil well interventions. The invention provides an improved tractor whose speed is controllable remotely, such as from the well bore su...  
WO/2017/029613A1
This invention relates to a drive system of the type which is suitable for use with a downhole used in oil well interventions. The invention provides an improved tractor whose speed is controllable remotely, such as from the well bore su...  
WO/2017/021339A1
A drill (10) having a down the hole (DTH) hammer (100) and a drill bit (12) coupled thereto. The DTH hammer comprises a first component in the form of a backhead (101), a second component in the form of a fluid distribution assembly (105...  
WO/2017/023784A1
This disclosure describes methods and systems for remote control of stroke length and frequency of percussion apparatus, such as a rock hammer drill. At a high level, the hammer drill is allowed to stay at a default low stroke length and...  

Matches 1 - 50 out of 2,643