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Patent Searching and Data


Matches 1 - 50 out of 1,634

Document Document Title
WO/2021/069657A1
A drilling assembly for percussive drilling, comprising at least two of a drill bit, a drill rod and a guide adapter; wherein the peripheral surface of the shoulder on the drill rod is at least partially encased in both radial and axial ...  
WO/2021/006800A1
The present invention relates to a method for estimating wear of a drill bit in percussive rock drilling, wherein a percussion device (106) is configured for generating shock waves in a drill bit (108) for breaking rock; the method compr...  
WO/2020/222890A1
A vibration assembly includes a valve above a rotor and stator. The rotor rotates within the stator as fluid flows therethrough. The valve includes a rotating valve segment, which rotates with the rotor, and a non-rotating valve segment ...  
WO/2020/148333A1
The invention relates to a rock drilling system (10) for geothermal drilling. The rock drilling system (10) comprises a drilling rig (2) with a drill string (22) and a drilling hammer (4) for drilling a borehole (9); at least one air com...  
WO/2020/139459A2
A method and apparatus for plugging a wellbore casing with a sleeve either mechanically or explosively.  
WO/2020/118785A1
A drilling device and a drilling method therefor. A mounting cylinder (5) is disposed in a housing (12), a motor (4) is mounted in the mounting cylinder (5), a shafting (7) is rotatably mounted in the mounting cylinder (5), one end is co...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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/2019/036317A1
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...  
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/2019/001401A1
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...  
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/2018/153226A1
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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.  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
WO/2015/188155A8
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...  

Matches 1 - 50 out of 1,634