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WO/2020/018240A1 |
A propulsion unit for a wellbore tool includes a tool body and at least one wheel section disposed along the tool body. The wheel section comprises a tractor pad movably coupled to a tractor housing coupled to the tool body. The tractor ...
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WO/2020/014638A1 |
A downhole motor for drilling a borehole includes a stator assembly including a helical-shaped stator, a rotor assembly rotatably disposed in the stator assembly, wherein the rotor assembly includes a helical-shaped rotor, and a sensor p...
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WO/2020/007716A1 |
The present invention relates to a drilling apparatus, in particular in the form of a kelly drilling rig, comprising a drilling tool holder for holding a drill rod, in particular a kelly bar, which can be rotatably driven by a rotary dri...
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WO/2020/000962A1 |
Disclosed is a device for power transmission and signal transmission between a stator and a rotor of a screw drill, the device comprising an electric power and signal transmitting portion, an electric power and signal receiving portion a...
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WO/2019/245381A1 |
The invention relates to a pipeline pulling tool having an elongate housing. First and second roller wheel sections (1) comprise at least two freely rotating roller wheels (3) extending out from a sidewall of the housing. An attachment f...
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WO/2019/236268A1 |
The present disclosure describes methods and systems for providing power to an offshore platform. In one implementation, an offshore includes: an electrical energy storage device connected to a load on the offshore platform; and a diode ...
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WO/2019/232199A1 |
A bottom hole assembly (BHA) and method for drilling a bore with a pneumatic percussion hammer includes an expandable packer surrounding the stem rod connected to the hammer. The packer has an inner surface confronting the outer surface ...
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WO/2019/224551A1 |
An apparatus and method for anchoring a string at a well for the purpose of cutting a tubular (30) which includes an anchor mechanism (110) being a tubular body (60) having a cone (116) arranged around the body, a plurality of selectivel...
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WO/2019/222122A1 |
Methods, computing systems, and computer-readable media for interpreting drilling dynamics data are described herein. The method can include receiving drilling dynamics data simulated by a processor or collected by a sensor positioned in...
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WO/2019/217149A1 |
Disclosed herd» is a pressure competition aystem for a bottom hole assembly, The disclosed pressure compensation system, improves the responsiveness of a hydraulically actuated component carried by the bottom hole assembly.
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WO/2019/216920A1 |
A rotary actuator assembly can include a fluid motor with a rotor that displaces with hypocyclic precessional motion within a stator in response to fluid flow through the fluid motor, and a gear reducer section including an input gear th...
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WO/2019/216922A1 |
A tubular string for use in a well can include a fluid motor and a tractor tool. The fluid motor can rotate the tractor tool in response to fluid flow through the fluid motor. Another tubular string can include a fluid motor, a gear redu...
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WO/2019/209437A1 |
An integrated bearing section includes a mandrel partially disposed within a housing. The bearing section includes spherical members disposed between the mandrel's outer surface and the housing's inner surface. A radial bearing portion i...
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WO/2019/210328A1 |
A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing, a bearing assembly including a bearing housing and a bearing mandr...
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WO/2019/210329A1 |
A downhole motor includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing, and a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed...
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WO/2019/196159A1 |
A drill speeder. The drill speeder is used for increasing the rotating speed of a drill bit in drilling operation and comprises: an upper joint (1) connected to a drill tool (200) in the drilling operation; a lower joint connected to the...
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WO/2019/199377A1 |
A coiled tubing assembly (136) includes coiled tubing (116) convey able into a wellbore, a rotational device (140) operatively coupled to the coiled tubing (116), a rotatable tubing segment (144) operatively coupled to the rotational dev...
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WO/2019/199296A1 |
A current booster includes a buck-type converter including an input node, an output node, an inductor connected in series between the input and output nodes, a first capacitor connecting between the output node and ground, a second capac...
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WO/2019/180462A1 |
A downhole tool (1) comprises a power control module (20), which includes a battery pack (22) for supplying power to components of the tool, and an electronic control circuit (24) for controlling the supply of power by the battery pack. ...
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WO/2019/174559A1 |
Disclosed is a hollow rotary drilling mechanism with a combination of vane motor driving and planetary gear speed reduction. The hollow rotary drilling mechanism comprises a bit shank sleeve (11), and the bit shank sleeve (11) is driven ...
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WO/2019/147827A1 |
Service life characteristics of an elastomer component used for sealing in a BOP are monitored. Measurements are made in situ on the BOP while deployed at a wellsite. The measurements can be related to contact pressure and/or sealing pre...
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WO/2019/145602A1 |
An arrangement and a method for installing a casing in a borehole. The arrangement (100) comprises a casing (1), a boring pipe (2) which is adapted within the casing (1), the boring pipe (2) comprising flow channels for compressed air (3...
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WO/2019/140907A1 |
Disclosed is a drilling speed-increasing device driven by an underground motor to generate an impact vibration effect, wherein the device uses the rotation energy of a screw motor as the power to drive a lower vibration starting body (17...
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WO/2019/135682A1 |
A tunnel-boring machine (3) comprising a frame (6), a rotating boring head (4) with rolling disc cutters (5) supported at a front end of a first frame portion (6a), a second, polygonal frame portion (6b) extending rearwards from the firs...
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WO/2019/132691A1 |
The invention relates to the field of drilling. A drilling assembly comprises a drill bit, and a positive displacement motor having a bending unit for deviation by a tilt angle f, and further comprises a rotation module and a hinge modul...
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WO/2019/123466A1 |
A device comprising a base plate dimensioned for insertion into a passageway along an insertion axis; a resilient element comprising a resilient arm disposed about said base plate along said insertion axis, said resilient arm having a fi...
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WO/2019/120128A1 |
An enclosed hydraulic rock drill working system, comprising a hydraulic rock drill (18) and a water tank (2); the water tank (2) supplies water to the hydraulic rock drill (18) by means of a high pressure water supply system, and returns...
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WO/2019/108084A1 |
A spindle comprises n regulating elements in the form of quick-release sets of vibration dampers mounted in an upper chamber on a shaft above and below axial thrust bearings such as to be capable of preliminarily mutually offsetting the ...
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WO/2019/103630A1 |
The invention relates to an autonomous drilling machine for the construction of service shafts and open shafts, also known as slots, especially designed to improve efficiency in mining and civil engineering, as well as significantly redu...
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WO/2019/100033A1 |
A downhole device comprising a novel apparatus and vibratory assemblage that initiates and maintains mechanical agitation within the horizontal section of a well bore by providing both low and high vibration, in multiple axis and planes,...
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WO/2019/099100A1 |
A downhole vibration assembly includes a valve positioned above a rotor that is disposed at least partially within a stator. The rotor is operatively suspended within an inner bore of a housing and configured to rotate within the stator ...
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WO/2019/092600A1 |
The invention relates to a pneumatic drill hammer (101) that includes a hollow control rod (119) supported from a dividing wall (123) of a back-head which withdraws from a piston bore (191) at the first end to exhaust a drive chamber (16...
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WO/2019/089230A1 |
A swinging device for spectacle blinds where the swinging device includes a case having a pair of side members connected to a bottom member and first and second shafts rotatably connected to the case. A first gear mounted on the first sh...
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WO/2019/089928A1 |
A harmonic drive assembly and fluid-powered linear motors with both axial pistons are rotary piston arrangements incorporating the harmonic drive assembly are disclosed. The motors may be used in downhole drilling applications, but the d...
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WO/2019/083527A1 |
An electric submersible motor thrust bearing system is described. An electric submersible motor thrust bearing system includes a thrust bearing assembly carrying a thrust of an electric submersible motor, the thrust bearing assembly incl...
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WO/2019/077308A1 |
The present invention relates to a device for centring and pulling a tool in a pipeline, the device comprising expanding arms, with each expanding arm comprises a wheel suitable for making contact with an inside wall of a pipeline, where...
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WO/2019/076135A1 |
Disclosed is a drilling speed-raising device capable of producing double actions of hydraulic pulse and impact vibration. The device comprises an upper joint (1), a drilling tool body (2) and a lower joint (3). The upper end of the lower...
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WO/2019/079321A1 |
A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed...
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WO/2019/043295A1 |
The invention relates to a fluid operated drilling device (1) for drilling a hole (100), said drilling device (1) having a hammer, a rotation device (50) and a drill rod (46), the hammer (9) comprising a tubular main body (10), a back he...
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WO/2019/038474A1 |
The invention relates to a fluid operated drilling device having a hammer (9), a surface drive for rotating a drill rod (46), the hammer comprising a tubular main body (10), a cylindrical piston housing (20), a reciprocating piston (22),...
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WO/2019/023486A1 |
A universal joint includes a joint housing and a joint shaft. The joint housing includes a socket having one or more recesses. The joint shaft includes a head positioned in the socket of the joint housing. The head includes one or more l...
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WO/2019/016230A1 |
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The assembly comprises a percussion bit (2) comprising a bit head (3) detachably connected to an axially extending shank (4) and engagement ...
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WO/2019/016231A1 |
The present invention provides a hydraulic percussion device comprising a piston (2) mounted for reciprocal motion within a cylinder (1) to impact a percussion bit (3) and a control valve (4) to control reciprocation of the piston (2). A...
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WO/2019/018351A1 |
A downhole oscillation tool includes a Moineau-type positive displacement pulse motor and a valve assembly for use in a drill string (100). The pulse motor includes a rotor configured to nutate within the bore of a stator (114). The roto...
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WO/2019/011202A1 |
A method for induced drilling by means of inertial confinement motion traction, and an inertial confinement induced drilling device with a PDC drill. By means of the method for induced drilling by means of inertial confinement motion tra...
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WO/2019/009734A1 |
The invention relates to a pulling tool for use in a wellbore or tubing for pulling cable. The pulling tool comprises a propulsion module (64) having a main section (1) and a propulsion arm (2) hinged to the main section (1). The propuls...
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WO/2018/234401A1 |
The invention relates to a ground drilling device with a percussion piston for drilling into the soil, which comprises at least one housing section for the percussion piston. An insert is arranged in the housing between the end of the dr...
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WO/2018/224732A1 |
A drill device assembly (1), comprising a drill device (2) having at least one movable component (2a), wherein when in use, a fluid flow is directed past the movable component and said movable component moves with respect to the remainin...
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WO/2018/220098A1 |
A down the hole rock drilling machine and a method of drilling rock. The drilling machine comprises a reciprocating piston (19), which has sleeve-like configuration. Inside a central opening (20) of the piston is arranged one or more flu...
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WO/2018/220097A1 |
A down the hole rock drilling machine and a method of drilling rock. The drilling machine comprises a casing (15) inside which is a control sleeve (20). A reciprocating piston (19) is arranged to move inside the control sleeve and contro...
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