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WO/2020/060668A1 |
A percussive drill string assembly including a drill bit and a drill rod. The drill bit has a body having: a circumferential wall; a crown extending distally from the circumferential wall; and a threaded portion extending proximally from...
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WO/2020/031075A1 |
A percussion device including an input side and an output side, the input side is configured to be rotationally driven and the output side is rotationally driven by the input side via a drive transmitter/drive transmitter pathway combina...
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WO/2019/233374A1 |
A hole forming device comprises a protective housing (1). A hydraulic cylinder support (2) is mounted on an upper port of the protective housing. A hydraulic cylinder (3) is mounted on the hydraulic cylinder support. A piston rod (4) of ...
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WO/2019/226096A1 |
The invention relates to a drill bit change system (1) for at least semi-automatic changing of drill bits (3) in a drilling rig (5) configured for vertical drilling.The drilling rig (5) comprises an interchangeable plurality of drill pip...
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WO/2019/190381A1 |
Herein is described a percussion device (1) adapted for rock drilling comprising a controller (3), a percussion mechanism (5), a percussion means (7) and a drill bit (9).The percussion mechanism (5) is adapted to provide the percussion m...
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WO/2019/190328A1 |
A gate valve (100) for controlling flow of a fluid, comprising a valve body (102) comprising a flow bore (104) extending through the valve body for flow of the fluid and a gate (110) movable to intersect the flow bore; a gate valve assem...
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WO/2019/184073A1 |
Disclosed are a multi-cycle flow channel drilling system and drilling process for use in large-scale borehole hard rock drilling. The drilling system comprises a downhole air hammer ground manifold and device, a gas lift manifold and dev...
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WO/2019/160757A1 |
Systems and methods for installing pipe underground are disclosed. The system includes a pneumatic rammer configured to provide a percussive force to a section of pipe. The system also includes a main jacking frame coupled to the pneumat...
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WO/2019/158834A1 |
The rotary-percussive hydraulic drill (2) comprises a body (3); a fitting (15); a striking piston (5) configured to strike the fitting (15); an impact piston (13) having a front face (18) facing the fitting (15) and a rear face (19) faci...
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WO/2019/120127A1 |
A closed hydraulic rock drill, comprising an outer cover (2), a bit shank sleeve (4), a drill rod (38), and a piston (9). The bit shank sleeve (4) is disposed in the outer cover (2); one end of the drill rod (38) is fixed in the bit shan...
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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/2019/036317A1 |
A top drive for well operations having a gearbox, a traction motor connected to the gearbox so that a motor shaft of the traction motor extends into the gearbox, a quill extending into the gearbox, a gear train positioned within the gear...
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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/2019/001401A1 |
An advance and retreat automatic control method based on hydraulic sensing conversion and an advance and retreat automatic control system based on hydraulic sensing conversion. The advance and retreat automatic control system based on hy...
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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 ...
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WO/2018/153226A1 |
There is provided a vibration reducing apparatus (10) for a percussive tool (60) having an axis of reciprocation. The apparatus comprises, a guide frame (38,38a,38b) and at least one member (50) extending across the axis of reciprocation...
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WO/2018/132862A1 |
A mobile, coiled tubing drilling apparatus with a rotary drill head, the apparatus including a non-rotating mast on a mobile platform, the mast having mounted thereon an injector below a coiled tubing reel, the injector defining an opera...
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WO/2018/131689A1 |
The present invention increases a hammer output by setting piston stroke to short stroke while maintaining hammering energy without changing a hydraulic circuit arrangement. This hydraulic hammering device is provided with: a piston fron...
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WO/2018/129278A1 |
A pile driving adapter (10, 10a) includes an upper attachment portion (20, 20a) for selectively attaching the adapter (10, 10a) to a drill head (12) and a lower housing portion (22) including at least a first outer wall (50). The pile dr...
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WO/2018/106256A1 |
A drilling system includes a top drive having a motor with a rotating shaft and an adjustable torque. The drilling system also includes a connector that couples the rotating shaft to a drillstring. The drillstring system also includes a ...
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WO/2018/078054A1 |
Monitoring device (10) and connected monitoring method, of an operating area (12) of an operating machine (1 1) provided with a work member (14) and support and movement means (15) of the work member (14), said monitoring device comprisi...
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WO/2018/049199A1 |
A drill string comprises a mechanical drill bit and a ram accelerator with a launch tube proximate to the mechanical drill bit. A projectile accelerated by the ram accelerator exits the mechanical drill bit through an orifice and impacts...
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WO/2018/026849A1 |
Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a fi...
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WO/2018/021931A1 |
The invention relates to the mining and construction industries and is designed to increase reliability, reduce vibrational loads and improve serviceability. The indicated technical result is a hydrohammer, which comprises a body with a ...
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WO/2018/021930A1 |
The invention relates to the mining and construction industries and is designed to increase the operating efficiency of a hydrohammer and simplify the design thereof. The indicated technical result is a hydrohammer, which comprises a pre...
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WO/2018/009093A1 |
The invention relates to the mining and construction industry and is directed at increasing the production efficiency and utilizational efficiency of a hydraulic hammer. The indicated technical result consists in a hydraulic hammer, comp...
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WO/2017/223562A1 |
A pneumatic drilling device comprising: an impact manifold or cylinder in fluid communication with a rotary air manifold or gear box; and a single air inlet. The single air inlet may be in fluid communication with the impact manifold or ...
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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...
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WO/2017/192625A1 |
A valve assembly includes a valve body having a fluid inlet and a fluid outlet. An operator cavity is within the valve body, and the valve body includes a valve operator socket surface. A valve operator is slidably coupled with the valve...
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WO/2017/174486A1 |
The invention relates to a counter hold system (4) for a drilling system, comprising an axially and/or radially flexible, preferably tubular, bellows (401) with two annular openings, and a cylinder body (403) which is axially movable in ...
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WO/2017/110793A1 |
Provided is a hydraulic hammering device that is capable of sufficiently transmitting hammering force to bedrock while further strengthening the cushioning action and suppressing equipment damage. The present hydraulic hammering device i...
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WO/2017/083940A1 |
A drill motor assembly including a drill shaft and at least two sub-motor assemblies operatively engaged with the drill shaft to cause the drill shaft to rotate.
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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...
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WO/2017/041118A2 |
A vibration generator (9) for a drilling installation comprises a housing (16), at least one rotation body (17), a suspension (24) by means of which the rotation body is suspended rotatably within the housing, the mass centre of the rota...
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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...
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WO/2017/013597A1 |
The invention relates to a pneumatic down-the-hole drill hammer (1) comprising a back- head (2) supporting a check valve (12) and having an integral chamber divider (13) and skirt (14) with a control rod (22) fixedly supported centrally ...
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WO/2017/008522A1 |
A novel petroleum exploration apparatus based on the Internet of Things, comprising a drilling mechanism and a control system, the drilling mechanism comprising a drilling assembly and an auxiliary assembly, the drilling assembly compris...
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WO/2017/010400A1 |
The present invention increases a hammer output by setting a piston stroke to a short stroke while maintaining hammering energy. This hydraulic hammering device is provided with: a cylinder (100); a piston (200) slidingly fitted in the c...
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WO/2017/000015A1 |
Because of variations in the ground and in the posts it is sometimes necessary to reduce the blow energy of the hammer. The present invention provides a device for use with a hydraulic hammer of the type that uses a back head gas chamber...
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WO/2016/192107A1 |
A method for varying a weight on a drill bit in a wellbore. The method includes running a downhole tool into the wellbore on a drill string. The downhole tool includes a motor and a drill bit. The drill bit is rotated with the motor to d...
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WO/2016/178069A1 |
The invention is a safety system for the operating members (M1), rotating or movable in general, of drilling machines (M) or processing machines in general, comprising: transponders (T1, T2, T3,..., Tn, Tx1, Tx2,..., To) suited to transm...
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WO/2016/154703A1 |
Embodiments disclosed herein relate to tools capable of amplifying or dampening axial forces produced by downhole equipment. More specifically, apparatus and methodologies provide a tool for imparting amplified axial loads (e.g. a hammer...
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WO/2016/148575A1 |
A percussive hammering assembly comprises a tool assembly (24, 25). The tool assembly (24, 25) is arranged to be oscillated in a direction (P) within a casing. An impact piston (27) is arranged slideably in a housing (28), together with ...
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WO/2016/120087A1 |
An elongate drilling guide rod (100) for percussive drilling comprising a deviation resistant section (107) extending axially along at least part of a main length section (106) of the rod. The deviation resistant section comprises a circ...
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WO/2016/115076A1 |
A valve assembly for managing a flow of fluids in hydrocarbon development and production operations includes a valve body having an internal body cavity and a body bore intersecting the body cavity. A valve plug is located within the bod...
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WO/2016/109868A1 |
A multi-fluid drilling system (10) drilling is disclosed for drilling a hole or well (11). The system (10) is coupled to a dual wall drill string (12). The drill string (12) is configured to enable separate flow of a first fluid (14) and...
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WO/2016/079013A1 |
A drill string rod (100) and a drill string assembly that includes a drill rod (100) and a drill bit (112) in which the rod comprises a threaded male end (103) and a female end (102). An axially extending shoulder (110) is provided at th...
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WO/2016/041049A1 |
Embodiments disclosed herein relate to downhole tools capable of creating a vibration, and more particularly to methods and apparatus for creating tunable pressure pulses for imparting vibration to a downhole drill string.
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WO/2015/188155A1 |
A friction reduction apparatus (FRA) positioned onto a pipe string comprises a tubular housing, upper and lower mandrels having variously configured fluid flow passages and ports, a valve and a shifter. Fluid travelling through the appar...
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WO/2015/161341A1 |
There is provided a mast for a rig, comprising a main boom having a lower end adapted for pivotal connection to a mast support of the rig; and a mast stop extending from the main boom. In use, the mast pivots between a stowed condition a...
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