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Matches 1 - 50 out of 2,740

Document Document Title
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. ...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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,...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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),...  
WO/2018/107304A8
The invention relates to a pressurised fluid flow system for a normal circulation down-the-hole hammer which comprises a coaxial jacket arranged between an outer casing and a piston which reciprocates due to changes in the pressure of th...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2018/222210A1
Providing accurate speed and rotation of a motor of a drilling assembly allows accurate monitoring of a drilling operation, for example, direction of drilling, rate of penetration, vibration, and stability of the drilling assembly. A bi-...  
WO/2018/218330A1
An apparatus including a housing defining a housing bore and a shaft extending within the housing bore. The shaft is deflectable and tiltable within the housing bore. The apparatus further includes a fulcrum for tiltably supporting the s...  
WO/2018/222530A1
A progressive cavity positive displacement motor having a solid metal stator (26) and a rotor (25) having an elastomeric seal layer (31) on its outer surface, as well as a method of manufacturing the motor. The elastomeric seal lay on th...  
WO/2018/217196A1
A drilling motor operated with flow of drilling fluid therethrough includes an elongated shaft having integrally formed sections and includes a housing having a plurality of separate sections inserted on the elongated shaft and interconn...  
WO/2018/218189A1
A bend adjustment assembly (300) for a downhole mud motor (35) includes a driveshaft housing (110), a driveshaft (120) disposed in the driveshaft housing, a bearing mandrel (220), wherein the bend adjustment assembly includes a first pos...  
WO/2018/211319A1
An impact apparatus operable to be coupled along and impart an impact to a downhole tool string. The impact apparatus includes a housing, a first and second chambers within the housing, and a piston shaft assembly movable with respect to...  
WO/2018/198017A1
A backhead assembly system for a Down The Hole (DTH) hammer operated by a supply of compressed fluid, that comprises mainly a backhead, said backhead having a central hole capable of transporting the pressurized air to the hammer and an ...  
WO/2018/187765A1
A pressure pulse tool includes a tool housing, a valve disposed in the housing and having first and second valve components that are each rotatable relative to the housing and that cooperate to open and close a fluid flow path through th...  
WO/2018/183499A1
A system for generating pressure pulses in drilling fluid includes a concentric drive power section. The power section includes a stator and a rotor rotatably disposed in the stator. The rotor is coaxially aligned with the stator. The sy...  
WO/2018/139961A3
A power transmission system and method for transmitting power over a three-phase power system on a multi-conductor power cable between a surface and a sub-surface location are provided. A surface system includes a power supply providing ...  
WO/2018/165734A1
A radial bearing for transmitting a radial load, including a first radial bearing component having an inner surface defining a bore and a second radial bearing component received within the bore of the first radial bearing component and ...  
WO/2018/164347A1
The present invention relates to a drilling apparatus for constructing a jacket of marine equipment and a drilling method using the same, the apparatus having a crushed material storage unit for storing crushed materials generated during...  
WO/2018/165348A1
A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member ...  
WO/2018/128701A3
A method of operating a Moineau system to substantially eliminate vibrations, the method includes rotating a first rotational member, and rotating a second rotational member. Each of the first rotational member and the second rotational ...  
WO/2018/160095A1
The group of inventions relates to the field of drilling equipment. A sub stop mechanism is fastened between bearings and comprises a tubular stopping member, the cavity of which contains an annular insert with stop recesses. Each recess...  
WO/2018/157218A1
The invention refers to a continuous wedging tool for directional diamond drilling, employed in geological prospecting. It comprises a composite stator assembly (1) with a bearing seated composite rotor assembly (2) ending in a drill bit...  
WO/2018/128832A1
An apparatus for use in a wellbore is disclosed that in one non-limiting embodiment includes a rotatable member, a thrust bearing coupled to the rotatable member, wherein the thrust bearing includes a bearing stack that further includes ...  

Matches 1 - 50 out of 2,740