| Document |
Document Title |
|
WO/2011/059362A1 |
The invention relates to technical means for drilling oil and gas wells, and particularly to the realization of the main unit in the structures of multistage turbodrills, i.e. the axial turbine. The invention makes it possible to achieve...
|
|
WO/2011/051397A1 |
The invention relates to a device (100) for moving in a tubular channel (199) comprising two gripping means (101) fluidly connected via a pump (400); wherein a first (G1) of the two gripping means comprises a fluid; wherein the pump is a...
|
|
WO/2011/051321A1 |
An apparatus (100) for operation in a tubular channel (199), the apparatus comprising a first part and a second part connected to the first part, wherein the second part comprises a first electronic device adapted to generate a data sign...
|
|
WO/2011/046444A1 |
A rock drilling machine (1) comprising a drill portion (4) with a drill bit (8) and an associated gear (14) and driving motor (16), a string portion (6) and also pipes and lines (42) for supply of drilling fluid and power, wherein the st...
|
|
WO/2011/030095A2 |
Aspects of the invention provide valves, bottom hole assemblies, and methods of selectively actuating a motor. One aspect of the invention provides a valve including: a barrel having an interior having a circular cross-section, an inlet ...
|
|
WO/2011/023350A1 |
The invention relates to a pneumatically driven drilling ram device, the movement direction of which is hydraulically reversed. For this purpose, a pressure medium can be piped over a hydraulic line (12) to a pressure chamber (11), the l...
|
|
WO/2011/023341A1 |
The invention relates to a ram boring device for creating horizontal bores, having an impact piston which moves in an oscillatory manner within a casing of the ram boring device and of which the impact frequency or impact intensity can b...
|
|
WO/2011/022574A2 |
A zero backlash downhole setting tool including a mandrel; a body lock ring at the mandrel; a setting sleeve in operable communication with a device to be set; a rotary take-up in tensile force transmissive contact with the device to be ...
|
|
WO/2011/022580A2 |
A zero backlash downhole setting tool including a mandrel having a number of recesses therein; a subassembly having a number of fingers at least partially receivable in the recesses, the subassembly in force transmissive communication wi...
|
|
WO/2011/016005A2 |
The invention provides for a down-the-hole drill bit assembly comprising a drill bit having a screw-thread at its anvil end, external splines on the drill shank and co-operating splines within a drill casing as well as a co-operating scr...
|
|
WO/2011/000102A1 |
Disclosed is an apparatus for vibrating a downhole drill string operable to have a drilling fluid pumped therethrough. The apparatus comprises a tubular body securable to the drill string and having a central bore therethrough, a valve i...
|
|
WO/2011/002301A1 |
The present invention concerns a power generating apparatus for generating power from a fluid flowing in a pipe (14). The apparatus includes a cylindrical body (13), and an annular turbine (4) for driving an electric generator. Fluid bea...
|
|
WO/2010/151743A2 |
A bearing assembly for a downhole motor comprises a housing having an upper end, a lower end, a radially inner surface, and a radially outer surface. In addition, the bearing assembly comprises a mandrel rotatably disposed within the hou...
|
|
WO/2010/145005A1 |
A system and method of optimizing air hammer performance in a well drilling rig whereby an electronic acoustic receiver (EAR) is used to monitor the effects of changing any of the operating parameters under his or her control. The signal...
|
|
WO/2010/142949A2 |
A method of raising a tubular, comprising attaching a lifter to a tubular associated with a wellbore, and operating the lifter to transmit a downward force to a subterranean formation via a surface of the wellbore formed in the subterran...
|
|
WO/2010/132182A1 |
Embodiments of the invention relate to a bearing assembly including at least one superhard bearing element having at least one bearing registration feature configured to facilitate orientating of a curved, pre-machined bearing surface th...
|
|
WO/2010/129675A2 |
A down hole drill, includes a drill bit (40), a reciprocating piston (75) operable to deliver an impact load to the drill bit, and means for changing the frequency with which the piston delivers impact loading to the drill bit, also resu...
|
|
WO/2010/123375A1 |
A stroker device (1) for use in a borehole (2) in the ground, the stroker (1) at least comprising an actuator (6) arranged for displacing a tool (10) in a longitudinal direction of the borehole (2), and grippers (26) arranged to anchor t...
|
|
WO/2010/120207A1 |
The invention relates to oil protection systems for assemblies (bearings, reduction gears etc.) of downhole motors used for drilling directional wells. An oil protection system for a downhole motor comprises an oil-filled chamber with a ...
|
|
WO/2010/107606A2 |
A drilling system including a drill head is configured to couple to a drill string of a drilling machine to drill a borehole. The drill head includes a one- way clutch, a steering housing, and a drill bit. The steering housing includes b...
|
|
WO/2010/104915A1 |
In a downhole motor bearing section having a cylindrical mandrel rotatably disposed within a cylindrical housing, a bi-directional thrust bearing is disposed within a four-shouldered annular containment chamber formed partially into the ...
|
|
WO/2010/102275A2 |
A downhole tool includes a non-contact, electrical coupling device configured to transmit electrical power and/or data between relatively rotating components. In one embodiment, the coupling device includes at least first and second woun...
|
|
WO/2010/098951A2 |
In an embodiment, a bearing apparatus comprises a first bearing assembly including a plurality of circumferentially-spaced first bearing elements each of which includes a first bearing surface. The bearing apparatus further includes a se...
|
|
WO/2010/096039A1 |
Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated oil and gas well production device includes an oil and gas well production device including one or more ...
|
|
WO/2010/093685A2 |
A percussive assisted rotary drill includes a top sub for connection with a drill pipe. The drill pipe imparts torque to the drill and also supplies motive fluid to the drill. The drill includes a shank adapter to facilitate affixing a r...
|
|
WO/2010/091348A2 |
A drilling assembly is disclosed that in one embodiment includes a bidirectional wireless data transfer device between a rotating and a non-rotating member of the drilling assembly. Power may be supplied to the rotating member via any su...
|
|
WO/2010/090577A1 |
The invention concern an arrangement for a down-the-hole hammer drill (1), particularly for use in soil consolidation through a process known as "jet grouting", and comprising a principally cylindrical machine housing (2), an impact mech...
|
|
WO/2010/088057A1 |
A DHD hammer that can exhaust working air volumes partially through a proximal end of the DHD hammer's actuator assembly includes a drive chamber, a return chamber, and a backhead that includes exhaust ports. Working air volumes from the...
|
|
WO/2010/078537A1 |
A downhole drilling tool (100) includes a housing (102) defining an axial passageway (104) and a shaft (106) mounted for rotation within the axial passageway such that the housing and shaft form an annular gap. An electrical connector pr...
|
|
WO/2010/064001A2 |
The invention provides a sealing gland capable of use in high-pressure environments and methods for the use thereof. One aspect of the invention provides a sealing gland including: a first sealing surface having a first groove and a seco...
|
|
WO/2010/063999A2 |
A turbine for use in a downhole drill string including an elongated casing defining an interior and a plurality of motor units in the interior. Each motor unit has a rotor and a stator. A torque transmission couplings connects each of th...
|
|
WO/2010/061168A2 |
The present invention relates to systems and methods for controlling downhole motors. One aspect of the invention provides a valve-controlled downhole motor including: a downhole motor and a spool valve. The downhole motor includes a sea...
|
|
WO/2010/058152A2 |
A drilling assembly in an elongated hole including a housing defining an interior with a plurality of motor stages in the interior. Each motor stage has at least one blade with supporting platform surfaces. A casing within the interior s...
|
|
WO/2010/053968A2 |
Disclosed herein is a downhole mud motor. The mud motor includes, a stator, a rotor in operable communication with the stator, a polymer in operable communication with the stator and the rotor, and a plurality of carbon nanorubes embedde...
|
|
WO/2010/049724A2 |
Systems and methods are disclosed for material treatment within a member or for removal of material from within a member. Such systems, in certain aspects, have a spindle powered by a motor or motors positionable within the member during...
|
|
WO/2010/043757A1 |
The invention relates to a method and drilling apparatus for down-the-hole drilling, the drilling being carried out by a drilling apparatus, having a drilling device (1) that comprises a casing part (2) and at least during a drilling sit...
|
|
WO/2010/045115A2 |
Systems, methods, processes, and/or heaters for treating a subsurface formation are described herein. Some embodiments also generally relate to heaters that have novel components therein. Such heaters may be obtained by using the systems...
|
|
WO/2010/037992A1 |
An apparatus (5) for cutting a wellbore (1) is disclosed, the apparatus (5) comprising a motor provided with a stator (13) and a rotor (11), the rotor (11) being connected to a cutting structure (7) so as to drive the cutting structure (...
|
|
WO/2010/033041A1 |
The present invention relates to a hydraulic "down-the-hole" (DTH) percussion drilling apparatus for drilling holes in a terrain. Known DTH drilling apparatus are inefficient in terms of loss of hydraulic fluid during coupling and uncoup...
|
|
WO/2010/030272A1 |
A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, at ...
|
|
WO/2010/019972A1 |
The invention relates to a wet drill head (210) used for drilling applications in the mining industry. The drill head (210) includes a shaft (260) comprising a drive means engagement end and a drill rod receiving end, the shaft further d...
|
|
WO/2010/009826A1 |
An earth auger device comprises a drill pipe system that has an outer pipe (1a) and an inner pipe (1b) which is arranged within the outer pipe (1a) in a rotatable manner thereto, and a rotary drive (2) for the drill pipe system. The eart...
|
|
WO/2010/008356A1 |
The invention relates to drilling tools and can increase the operating efficiency of an electric drill. The inventive electric drill comprises two bits (internal and external), a body, and an electric motor with a hollow shaft and a curr...
|
|
WO/2010/002963A1 |
A generator (10) is provided for positioning downhole in a drill string (12) to generate power powering one or more downhole tools (16, 18). The generator includes a progressive cavity housing (28) and a progressive cavity rotor (13) whi...
|
|
WO/2009/151608A1 |
A downhole motor having a motor section, a drive shaft section, and an output shaft section, the output shaft section having a rotatable output shaft with a first end and a second end, a first thrust bearing assembly proximal to the firs...
|
|
WO/2009/148322A1 |
A device for a rock drilling machine (1) for drilling of boreholes (2) in rock, where the rock drilling machine (1) comprises a drilling portion (4) and a string portion (6) which by means of joinable pipes (20) are connected to a suppor...
|
|
WO/2009/148376A1 |
Device and method for sensing a parameter related to a position of a displaceable element (2) which is movable in an axial direction inside a housing (1) of a rock drilling machine, wherein said device includes a sensor element (4) which...
|
|
WO/2009/139658A1 |
This invention relates to machine-building, more specifically, to the design and manufacturing of positive displacement motors various embodiments of which are used for hydrocarbon production.
|
|
WO/2009/139825A2 |
The present invention relates to an arrangement in a rock drill rig 10 comprising an inlet valve 31 arranged upstream a displacement compressor 32 that is used for supplying an air flow 34 to at least one flushing hole 23 in the surface ...
|
|
WO/2009/135120A2 |
A thrust bearing assembly comprising a bearing runner and a bearing carrier, the carrier defining a plurality of thrust pad sites annularly around the carrier, with a thrust pad disposed at a site and with the carrier limiting movement o...
|
