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WO/2022/125493A1 |
A well tool for generating a notch in an open-hole wellbore, includes a tool body having a housing defining at least one slot and an interior volume. The tool body includes a cutting device disposed in the interior volume, configured to ...
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WO/2022/117124A1 |
A construction method for an outward expansion pipe in a drill hole in a goaf, comprising the following steps: step S1, laying out for construction and cleaning the site; step S2, drilling a starting hole by means of a drilling rig, and ...
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WO/2022/112989A1 |
A column formation tool comprising a head portion and a shank portion. The head portion comprises a core portion and an outer peripheral portion which surrounds the core portion. The outer peripheral portion comprises protuberances which...
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WO/2022/110773A1 |
Disclosed is a triangular polycrystalline diamond composite sheet. The polycrystalline diamond composite sheet comprises a cemented carbide base (1) and polycrystalline diamond (2) which are compounded with each other. A composite ring (...
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WO/2022/115465A1 |
A cutting element has a cutting face at an axial end of the cutting element, a peripheral surface extending circumferentially around the cutting face, and a cutting edge formed between the cutting face and the peripheral surface. The cut...
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WO/2022/109056A1 |
Methods and configurable apparatuses for mining a vein using electrocrushing. The apparatus can be configured to match the size and shape of a vein, greatly reducing mining of the surrounding matrix and therefore the amount of material t...
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WO/2022/100029A1 |
A drill bit for a rotary drilling rig, comprising a drill barrel (1). The upper end of the drill barrel (1) is provided with a connecting portion (2), and the lower end of the drill barrel is provided with a cutting portion (3); the dril...
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WO/2022/101344A1 |
The invention relates to a mobile drilling rig (1) for drilling boreholes (50) in a subsurface (51), said drilling rig comprising: a drive unit (3) for providing energy; a drilling unit (4) having a drive motor (5) and a drill head (6) d...
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WO/2022/098175A1 |
A drill bit according to the present invention has: a first bit body having a hollow portion; a cutting tip mounting part on which cutting tips are mounted in the circumferential direction on the end of the first bit body, and which has ...
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WO/2022/091865A1 |
This drilling bit comprises a bit body (2) centered on a tool central axis (O), a plurality of drilling tips (3) projecting from an end surface (21) of the bit body (2), a discharge passage (4) disposed across the end surface (21) and an...
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WO/2022/083249A1 |
Provided is a mining hard alloy formula. The mining hard alloy formula comprises the following components in parts by weight: 87-94 parts of tungsten carbide, 5-12 parts of a cobalt-iron alloy, and 0.1-0.25 parts of chromium carbide. Com...
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WO/2022/080161A1 |
The present invention provides a technology for performing simultaneous drilling on a surface to be drilled in a drilling direction and a borehole wall direction, in a drilling direction and a pile core direction, or in all these directi...
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WO/2022/081246A1 |
An earth-boring tool may include at least one blade including a shoulder region and a face. A plurality of cutting elements may be arranged on the face of the blade and at least one cutting element may be positioned in the shoulder regio...
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WO/2022/081977A1 |
A reversible polycrystalline diamond compact (PDC) bit (200, 400) is disclosed. The reversible PDC bit (400) includes at least one blade (401a, 401b), at least one front cutter (402) disposed on a first side of the at least one blade (40...
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WO/2022/072369A1 |
A hybrid bit includes fixed blades and wheel support structures. The wheel support structure includes a wheel inserted into a slot between a leading support and a trailing support. One or more shims fill a gap between a flange and the le...
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WO/2022/072591A1 |
An overshot assembly can include a distal body portion. The distal body portion can have a central axis, a length along the central axis, and an outer surface. An outer surface of the distal body portion can define, along at least a port...
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WO/2022/063348A1 |
A single-trip whipstock unit including three parts: milling apparatus (1), whipface (2) and anchor apparatus (3). These parts are connected together, from top to bottom, respectively. The anchor (3) prevents the downward motion and rotat...
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WO/2022/066991A1 |
Disclosed is a method for wet chemical functionalization of single crystal diamond surfaces that involves gentle reaction conditions. This method enables a wide range of functional groups and molecules to be tethered to the diamond surfa...
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WO/2022/057702A1 |
An efficient diamond geological drill bit and a manufacturing method therefor. The drill bit comprises a main body (1); a threaded drill rod (4) is provided in the middle of the main body (1), and the inner wall of the threaded drill rod...
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WO/2022/055947A1 |
An apparatus is positioned within a wellbore (112) in a subterranean formation (110). The apparatus includes a housing (201), a guide shaft (205), a follower (207), multiple underreamer blades (209), and a hydraulic chamber (211). The ho...
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WO/2022/047810A1 |
The present invention relates to a tool bit for a drill bit, comprising a triangular pyramid, and wing blades extending from the pyramid surface of the triangular pyramid, wherein the included angle between adjoined wing blades is 120°,...
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WO/2022/047542A1 |
An apparatus or combination of operational equipment 1 for effecting liquid or gas communication to, from or between at least one gas and/or liquid containing source 3a,b. The at least one source 3a,b having an upper boundary 5 through w...
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WO/2022/050966A1 |
An apparatus includes a drill bit having a frangible drive shaft, a thread cutting surface formed on an outer surface of the drill bit, a conical swage formed on the drill bit, the conical swage having a conical shape, and a seal plug co...
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WO/2022/043246A1 |
A drill bit comprising a shank and drill bit head which are both centred on a longitudinal axis; wherein the drill bit head has a gauge and a front face with a peripheral edge which is adjacent to the gauge, the peripheral edge having a ...
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WO/2022/047017A1 |
A blade on a downhole drilling tool includes a blade body and a blade cover. The blade cover is pre-sintered and conforming to the blade outer shape. The blade cover is attached to the blade body. The blade cover includes a seamless conn...
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WO/2022/040183A1 |
An apparatus for cutting into a subterranean formation includes a body and multiple cutting blades distributed around a circumference of the body. The cutting blades are configured to cut into the subterranean formation in response to be...
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WO/2022/035452A1 |
A drill bit having a rotatable ball bit includes a first bit head and a second bit head, a first set of cutters on the first bit head, and a second set of cutters on the second bit head. The rotatable ball bit is configured to rotate bet...
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WO/2022/032106A1 |
A tool for removing a packer beyond a restriction in a casing (120) of a wellbore (106) wherein the said tool includes: a milling body (118) with an outer diameter; milling blocks (116) positioned at intervals around a circumference of t...
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WO/2022/026559A1 |
A drilling assembly and method of drilling a wellbore is disclosed. The drilling assembly includes a steering device having a tilt device and an actuation device. A first section and a second section of the drilling assembly are coupled ...
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WO/2022/026685A1 |
An apparatus for solids analysis of a wellbore fluid includes a pipe formed from radiolucent material, the pipe having a bore for conveying the wellbore fluid. The apparatus includes an excitation source for generating source x-rays. The...
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WO/2022/025800A1 |
The invention relates to the field of synthesizing novel materials and can be used for manufacturing a cutting tool, cutting elements for a rock-cutting tool (drill bits), and other structural elements and mechanisms having surfaces that...
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WO/2022/020321A1 |
A new horizontal directional drilling (HDD) bit comprising a bit body is provided with illustrated embodiments including a flat bit design and a cobble bit design. Cutter teeth may be cut (e.g. formed or machined) into the base steel mat...
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WO/2022/020398A1 |
A belling auger includes a rotatable shaft, a main shaft extending through the rotatable shaft, a sliding sleeve mounted on the main shaft a bottom panel and a shovel rotatably attached to the rotatable shaft. Pressing the rotatable shaf...
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WO/2022/015733A1 |
A reaming tool includes a reaming tool body configured to be coupled within a drill string or a string of drilling tools. A plurality of reaming blocks is attached to the reaming tool body at circumferentially spaced apart locations. At ...
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WO/2022/007210A1 |
A special drill bit capable of preventing rock bursts. The special drill bit capable of preventing rock bursts comprises a drill rod (1) and a blade (21), wherein a spiral blade (2) is fixed on one side of the drill rod (1); a first limi...
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WO/2022/008786A1 |
A drill assembly for percussive drilling, comprising a drill bit (1) having a downhole portion (2) and an attachment portion (3) having a cylindrical male coupling thread (3a), and a drill string element (7) for transferring impacts from...
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WO/2022/003253A1 |
A drill assembly (1) for percussive drilling, comprising a drill bit (2) and a percussion device (6). The drill assembly further comprises a hollow cylindrical foot valve (9) partially received within a first central flushing channel (5)...
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WO/2022/006075A1 |
A flow control shuttle to provide the ability to block flow in either direction initially, while allowing a high-pressure differential capacity in one direction and does not produce free floating pieces of the plug in the flow stream aft...
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WO/2021/258164A1 |
A drill bit assembly for making a hole in a subterranean formation, the drill bit assembly comprising: a connector body defining a centreline axis about which said connector body rotates while drilling; a plurality of blade members conne...
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WO/2021/262209A1 |
A method of coring to preserve subterranean soluble salt cements gives careful consideration to the selection and use of drilling fluids, specific logging of the zone of interest, displacing the near wellbore with an agent that when cure...
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WO/2021/243361A1 |
A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. In an embodiment, the plurality of cutters comprise a substrate, an ultra-ha...
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WO/2021/239664A1 |
A wear support assembly comprising a wear pad arranged on top of a support plate wherein the support plate has a lower surface for connecting to a raise boring tool and both the wear pad and the support plate have at least one hole for r...
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WO/2021/242818A1 |
Systems and methods include a computer-implemented method can be used to make drilling tools from new wurtzite boron nitride (w-BN) superhard material. An ultra-high-pressure, high-temperature operation is performed on pure w-BN powder t...
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WO/2021/243362A1 |
A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. Each of the plurality of cutters has a substrate, an ultra-hard layer, an in...
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WO/2021/237092A1 |
Systems and methods presented herein include sidewall coring tool assemblies used to return core plugs of rock from a sidewall of a wellbore as part of a data collection exercise for exploration and production of hydrocarbons. A coring b...
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WO/2021/236582A1 |
An isolated lubrication system (200) for a drill bit (100) is disclosed. The system (200) comprises a body (105) having a cutting arm (106, 107, 108) with a journal (115) and a rotary cutter (109, 110, 111) mounted on the journal (115). ...
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WO/2021/233991A1 |
A down the hole drilling assembly having a top end arranged for coupling to a drill string and bottom cutting end, the drilling assembly comprising: an elongate casing; a fluid powered piston arranged moveably inside the casing which is ...
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WO/2021/228974A1 |
A method of redistributing the binder phase of a cemented carbide mining insert comprising a WC hard-phase component, optionally one or more further hard-phase components and a binder comprising the steps of providing a green cemented ca...
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WO/2021/224872A1 |
Drill bit (1) comprising - a tubular stem (2) made from a high strength metal or alloy; - a top section (3) comprising blades (7) and gages (8) with pockets; - cutters (9) mounted in the pockets; wherein, the top section (3) comprises a ...
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WO/2021/223379A1 |
Disclosed are an oil exploitation drilling tool circulating cooling device and the use of normal octane as a refrigerant. The cooling device comprises a refrigerant loop and a heat insulation cylinder (9); a turbine (4), a compressor (5)...
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