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WO/2012/058027 |
Systems and methods are described for fracturing a production formation. A method includes drilling a well into a zone proximate to a production formation, and increasing a volume of the zone through the well in order to apply a mechanic...
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WO/2012/057432 |
The present invention relates to a ground drilling hammer and a sleeve thereof, and more specifically, to a ground drilling hammer and sleeve which comprises, a cylindrical casing, a back head in which external compressed air flows, a gu...
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WO/2012/031311 |
A rock drill including a first control valve (80), a first fluid circuit (70) suppliable with fluid via the first control valve (80), an impact piston (66) driveable by fluid pressure in the first fluid circuit, a plurality of first flui...
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WO/2012/026571 |
In this fluid pressure hammering device, which automatically switches/controls the stroke of a piston in accordance with the rock quality of a rock to be pulverized, control accuracy is increased. A strike-switching pilot hole (40) for r...
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WO/2012/021604 |
A hydraulic hammer (14) may include a housing (30) having a distal end defining an opening (38), a bushing (54) positioned adjacent the housing distal end, the bushing (54) having an inner guide surface (58) and a distal end (56), and a ...
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WO/2012/020058 |
The present invention provides an attachment (1) for a fluid-operated percussion drill tool (2), the drill tool having a backhead assembly (4) for attachment to a drill rod (10). The attachment comprises a shaft (3) attachable to the bac...
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WO/2012/002827 |
A vibrational apparatus for a downhole assembly comprising first and second assemblies, each of the said assemblies having magnetic arrays around a common axis, wherein a fluid feed or other suitable drive causses a relative rotation bet...
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WO/2011/149363 |
Vibrational apparatus to direct stress waves (eg. to a bit 2 or other downhole tool) by generating vibrations as a consequence of shuttling responsive to relative rotational movement between magnetic arrays (4,5) and wherein there is, or...
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WO/2011/149363 |
Vibrational apparatus to direct stress waves (eg. to a bit 2 or other downhole tool) by generating vibrations as a consequence of shuttling responsive to relative rotational movement between magnetic arrays (4,5) and wherein there is, or...
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WO/2011/149197 |
The present invention relates to a hammer coupled to the bottom end of a connecting rod assembled to an excavator, and particularly, to a variably expandable hammer comprising: a hammer main body (100) including a rod connecting adapter ...
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WO/2011/149197 |
The present invention relates to a hammer coupled to the bottom end of a connecting rod assembled to an excavator, and particularly, to a variably expandable hammer comprising: a hammer main body (100) including a rod connecting adapter ...
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WO/2011/136830 |
A vibrating tool comprising a hammer and valve that oscillate axially inside a housing to produce vibrations solely in response to fluid flow through the tool at an operating flow rate. The valve is supported by a spring that resists com...
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WO/2011/136663 |
Downhole hammering or other vibrational apparatus comprising or including in, with respect to a hole axis, a rotatable input shaft (9) aligned with or aligned parallel to the hole axis, a rotatable shuttle assembly having two structures ...
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WO/2011/133560 |
Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of...
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WO/2011/123028 |
Rock drilling machine (10) comprising a piston that is arranged to move back and forth in a chamber (12a, 12b) when the rock drilling machine (10) is in use, a cavitation-sensitive component (14), and an oil channel that is arranged to e...
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WO/2011/078421 |
According to the present invention, an air hammer for a boring machine comprises: a main body including a hollow portion; a socket coupled to a side of the main body; a first bushing member including a sealing part coupled to the main bo...
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WO/2011/062925 |
A down-the-hole drill hammer is provided that includes a housing, a solid core piston mounted within the housing, a seal located between the solid core piston and the housing, and a backhead configured to exhaust working fluid volumes ab...
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WO/2011/062925 |
A down-the-hole drill hammer is provided that includes a housing, a solid core piston mounted within the housing, a seal located between the solid core piston and the housing, and a backhead configured to exhaust working fluid volumes ab...
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WO/2011/062925 |
A down-the-hole drill hammer is provided that includes a housing, a solid core piston mounted within the housing, a seal located between the solid core piston and the housing, and a backhead configured to exhaust working fluid volumes ab...
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WO/2011/059217 |
The present invention relates to a system for preventing an idle blow and adjusting hitting power of a breaker, which can set an idle blow-preventive direction converting unit by rotating the direction converting unit in a desired direct...
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WO/2011/054965 |
A system for communication through subterranean structures underneath a surface comprises at least one exploration tool adapted to penetrate into the underground, at least one transmitter, at least one receiver, and signal transfer means...
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WO/2011/000033 |
The present invention provides a drill head assembly (11) adapted to be incorporated in a tool such as a rock drill. The drill head assembly (11) comprises a drill housing (12) adapted to support a shank (18), which transmits motion to a...
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WO/2010/145005 |
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...
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WO/2010/137826 |
The present disclosure relates to a hydraulic breaker that can be widely installed on construction equipment, in particular excavators, and used for breaking rocks, concrete, etc. The hydraulic breaker comprises: a back head provided wit...
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WO/2010/137826 |
The present disclosure relates to a hydraulic breaker that can be widely installed on construction equipment, in particular excavators, and used for breaking rocks, concrete, etc. The hydraulic breaker comprises: a back head provided wit...
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WO/2010/017367 |
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WO/2010/098557 |
The present invention relates to a hydraulic breaker with an automatic grease supply, more specifically to a hydraulic breaker with an integrated automatic grease supply device which automatically supplies a proper amount of grease only ...
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WO/2010/098557 |
The present invention relates to a hydraulic breaker with an automatic grease supply, more specifically to a hydraulic breaker with an integrated automatic grease supply device which automatically supplies a proper amount of grease only ...
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WO/2010/082871 |
Damping device for a percussion device with a striking direction (R), including a damping piston (8) for action in an axial direction against a tool to be driven of the percussion device, wherein the damping piston (8) has a piston porti...
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WO/2010/068751 |
A mobile drill rig (10) has a drill mast (12), a carriage (13) mounted to the drill mast for vertical movement, and a vibratory drill head (16) having a sine generator (19) and a rotation mechanism (20) for imparting vibration and rotati...
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WO/2010/068751 |
A mobile drill rig (10) has a drill mast (12), a carriage (13) mounted to the drill mast for vertical movement, and a vibratory drill head (16) having a sine generator (19) and a rotation mechanism (20) for imparting vibration and rotati...
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WO/2010/058072 |
The invention relates to a rock drilling machine and an axial bearing module. The rock drilling machine (5) is equipped with an axial bearing (18) having at least one axial piston (19, 20) for axially positioning a drill shank (7) and fo...
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WO/2010/058073 |
The invention relates to a rock drilling machine (5) equipped with an axial bearing (18) having at least one axial piston (19, 20) for setting the axial position of a drill shank (7) and for damping stress pulses returning from the rock....
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WO/2010/026457 |
A sugar-based assembly is provided for the removal of a component from a reservoir or process fluid. The sugar-based assembly comprises a sugar optionally bound to a support, and where the support is present, the sugar is bound directly ...
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WO/2009/151962 |
A directional drilling system, a drilling hammer and a fluid flow telemetry modulator use a plurality of magnets arranged to convert rotational motion into reciprocating linear motion. Various types of motor can provide rotational motion...
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WO/2009/151962 |
A directional drilling system, a drilling hammer and a fluid flow telemetry modulator use a plurality of magnets arranged to convert rotational motion into reciprocating linear motion. Various types of motor can provide rotational motion...
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WO/2009/148376 |
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...
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WO/2009/147698 |
[PROBLEMS] To fill an air cylinder with air without installing an air compressor in an air buffer device. [MEANS FOR SOLVING PROBLEMS] The buffer device (2) consisting of a piston (21) and the air cylinder (22) is incorporated in an exci...
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WO/2009/139705 |
A bottom-hole assembly (202), BHA, for drilling a borehole (204, 301) in an earth formation (208, 30O), comprising a percussion drill bit (208), a percussion mechanism adapted to strike the drill bit (208), at least one sensor (226, 228,...
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WO/2009/091408 |
Parallel drilling systems and methods suitable for drilling wells for steam-assisted gravity drainage (SAGD). In some method embodiments, a tilted-antenna tool gathers azimuthally- sensitive electromagnetic signal measurements. Such meas...
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WO/2009/076635 |
A slim perforating gun includes a plurality of shape charges; a positioning device that orients the perforating gun in relation to a down direction of a deviated well; the shaped charges being positioned inside the perforating gun and ai...
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WO/2009/058725 |
A tool is preferably landed in a downhole profile commonly found adjacent to seal bores. Once landed, preferably with coiled tubing, pressure in the coiled tubing triggers a switch to power a motor to rotate a polishing cylinder that fea...
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WO/2009/058725 |
A tool is preferably landed in a downhole profile commonly found adjacent to seal bores. Once landed, preferably with coiled tubing, pressure in the coiled tubing triggers a switch to power a motor to rotate a polishing cylinder that fea...
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WO/2009/057184 |
Each of weight hammers (7, 8) has a shape suitable for applying a hammering force to the hammered surface of a body (11) to be hammered in substantial uniformly around the center axis of the body. Rotating bodies (9, 10) for driving the ...
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WO/2009/028964 |
Drilling apparatus having a drillstring and operable to rotate the drillstring and operable to provide vibration axially to the drill head. Relies upon vibrational apparatus positioned to provide the vibration reliant upon interactive ma...
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WO/2009/026011 |
A tool has a slot provided between a pair of extremities at its distal end. The extremities have cutting blades mounted thereon. The slot is configured to receive a plate. The tool has a conduit running along its axis for communication o...
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WO/2009/005436 |
The invention relates to a fuel-powered breaker machine (1) which has a cylinder (2, 2.3, 2.4) with two pistons (3, 4) disposed therein. The first of the pistons (3) is adapted to opening and closing at least an inlet aperture (5, 6) on ...
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WO/2008/109522 |
High productivity core drilling systems are described. The system includes a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cabl...
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WO/2008/103095 |
A method for controlling a fluid operated percussive device, which inside an axially extending cylinder room (3) of a housing (2) of the percussive device includes a to and fro moveable percussive piston (1), which is adapted for perform...
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WO/2008/085114 |
A rock drilling machine with a first control means (21, 22) within a second piston (6) and acting on a first piston (13) such that it counteracts displacement of the relative positions of a first and a second control device at the moment...
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