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WO/2020/126358A1 |
The present disclosure relates to a rock drill bit 14 for percussive drilling hammer 11 positioned at the cutting end of the hammer. A head 19, an elongated shank 17 connected to the head 19 at a front end of the bit 14, a head-shank tra...
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WO/2020/130423A1 |
The present invention relates to a core drill having a function for one-touch locking a core bit and, more particularly, to a new concept technology that automatically maintains locking and conveniently releases the locking when assembli...
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WO/2020/051537A9 |
An embodiment of a system includes a light source, an optical assembly, and an electronic circuit. The light source (e.g., a laser) is configured to generate a source optical signal. The optical assembly is configured to direct the sourc...
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WO/2020/123652A1 |
A shank assembly includes a neck portion, a shank portion defining a cylindrical aperture extending therethrough, and an anchor tube secured to the neck portion and extending through the shank portion, the anchor tube and the shank porti...
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WO/2020/122924A1 |
A multi-layer downhole drilling tool designed for drilling a wellbore including a plurality of formations is disclosed, including a bit body; blades disposed on exterior portions of the bit body; first layer cutting elements disposed on ...
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WO/2020/122732A1 |
A drilling assembly(1), comprising a drill bit (5) and a cutting assembly (2), - said drilling assembly (1) forming a longitudinal center axis (9); - said drill bit (5) and cutting assembly (2) being fastened to a rotatable spline drive ...
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WO/2020/121212A1 |
According to a first aspect of the invention there is provided a cutter head arrangement comprising a cutter head portion including a (substantially cylindrical) cutter head side wall to define a chamber (or cavity) surrounded by the cut...
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WO/2020/113307A1 |
An inner tube head assembly for a core barrel assembly having a latch casing coupled to a latch body, a landing shoulder coupled to the latch body and a spindle, and an inner tube cap assembly coupled between the spindle and an inner tub...
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WO/2020/117350A1 |
A drill bit includes a bit body defining a bit rotational axis and a blade attached to the bit body. The apparatus also includes a cutter comprising a cutting arc on a cutting surface of the cutter, wherein the cutter comprises at least ...
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WO/2020/118314A1 |
An electrical handheld shovel system includes a handheld shovel with an auger bit. The shovel includes a motor configured to rotate the auger bit and a portable power source configured to power the motor. The shovel includes an input/out...
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WO/2020/118315A1 |
An electrical handheld shovel system includes a handheld shovel with an auger bit. The shovel includes a motor configured to rotate the auger bit and a portable power source configured to power the motor. The shovel includes an input/out...
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WO/2020/112162A1 |
A casing mill for downhole casing milling has multiple elongated cutter bases hingedly connected to a main body by a plurality of positioning arms. An operating mechanism within the main body of the casing mill, actuated by fluid flow, m...
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WO/2020/107063A1 |
A drill bit assembly for drilling a hole through earth, the drill bit comprising: a bit body extending between a first end and a second end along a longitudinal axis of the bit body with a connecting arrangement positioned at the first e...
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WO/2020/105291A1 |
This enlarged-diameter hole section cutting device (10) is for cutting an enlarged-diameter hole section in a hole formed in a workpiece, the enlarged-diameter hole section cutting device (10) being provided with: a rod-like member (40) ...
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WO/2020/104161A1 |
A disc cutter (10) for a cutting unit used in a tunnel boring machine comprising an annular disc body (12) made of a metal alloy or metal matrix composite having an first side (14), a second side (16) arranged substantially opposite to t...
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WO/2020/104527A1 |
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit having a head portion and a bit retaining portion. Engagement means are provided on the head portion engageable w...
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WO/2020/104162A1 |
A disc cutter (10) for a cutting unit used in an undercutting operation comprising an annular disc body (12) made of a metal alloy or metal matrix composite having a first side (14), a second side (16) arranged substantially opposite to ...
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WO/2020/101996A1 |
A drill bit including a body having a face and a plurality of blades disposed on the face of the body. Each of the plurality of blades may have a row of cutters disposed thereon, and the rows of cutters may collectively define a cutting ...
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WO/2020/102016A1 |
A cutting element may include a substrate having a non-planar upper surface with a peripheral edge, and an ultrahard layer. The upper surface may include at least one depression formed at least proximate the peripheral edge; and a compre...
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WO/2020/093269A1 |
A floating spacing adjustment-type reverse well drilling rig, comprising a base support (1), a telescopic mechanism (2), a drill rod (4), a drill bit (5), and a T-shaped adjustment screw (10). An adjustment structure of a floating spacin...
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WO/2020/096590A1 |
The present disclosure provides a fixed-cutter drill bit including a bit body defining a bit rotational axis, a plurality of blades each having an inner end that is radially closer to the bit rotational axis than a remainder of the respe...
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WO/2020/093411A1 |
A drilling fluid channel structure of a core drilling rig, comprising: a fluid channel activation module, a pressure relief module, a flow diverging and blocking module, a driving fluid channel (41) and a cooling fluid channel (42). The ...
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WO/2020/083422A1 |
The invention relates to a method for machining a bearing ring (2, 3) of a rolling bearing (1), in particular a wheel bearing, comprising the following features: clamping a blank provided for the production of the bearing ring (2, 3) in ...
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WO/2020/086064A1 |
A drill bit for a drilling system. The drill bit may include blades and a first depth of cut sensor. The blades may each comprise cutters. The first depth of cut sensor may be coupled to one of the blades and positioned to measure a dist...
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WO/2020/086194A1 |
A completions bit for use in a wellbore includes: a body having a coupling formed at an upper end thereof and a plurality of lower legs; a plurality of roller cones forming a cutting face of the completions bit, each roller cone mounted ...
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WO/2020/078623A1 |
The invention relates to a method and to a device for dismantling geothermal probes (3), wherein a probe body (30), consisting of a probe line (31) and solidified insulating filling (32), is reamed by means of a drilling device (1), whil...
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WO/2020/079393A2 |
A drill string for use in the directional drilling of wellbores is described. A downhole reamer apparatus (202) is mounted in a drill string incorporating a drilling motor (300), stabiliser (302) and drill bit (304) operable either by ro...
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WO/2020/081406A1 |
A reamer shaft extension includes a shaft positioned between a first end having a first coupling and a second end having a second coupling. The first coupling of each reamer shaft extension is selectively couplable with the second coupli...
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WO/2020/076358A1 |
The present invention provides non-planar cutting tooth and a diamond drill bit. The non planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled ...
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WO/2020/070546A1 |
An example drill bit (1) includes a body (10) that is connectable to a drill string (2). The body (10) has a base (7) configured to face downhole within a wellbore (5) and a perimeter (6) configured to face a wall (8) of the wellbore (5)...
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WO/2020/062741A1 |
An efficient composite drill bit suitable for a deep well stratum difficult to drill, comprising a drill bit body (1), a cone (2), and a nozzle anti-blocking mechanism. A fluid cavity (3) is formed in the drill bit body (1). A crown (4) ...
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WO/2020/068645A1 |
Configurable ovoid units, earth-boring tools including configurable ovoid units, and related methods are disclosed. An earth-boring tool may include a body including at least one blade. The earth-boring tool may further include a cutting...
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WO/2020/067450A1 |
The present invention comprises: a tip body 2 composed of a cemented carbide and having a trailing end section 2A that forms a cylindrical or disk shape centered on the tip center line C, and a leading end 2B; and a hard layer 3 composed...
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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/2020/058364A1 |
The invention relates to an auger head for removing material from a water bottom, comprising a cylindrically shaped body for performing a rotary movement along the water bottom, said cylindrical body comprising a helically wound screw on...
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WO/2020/053822A1 |
A method for estimating an anomalous pore pressure value at depth level of a first discontinuous interface (24, 210) between a first geological formation and a second geological formation to be drilled by a drilling bit (10), by means of...
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WO/2020/055882A1 |
A cutter element for a drill bit includes a base portion having a central axis, a first end, and a second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting lay...
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WO/2020/051637A1 |
A bit drive and retention system (220) is described for a downhole hammer (10). The hammer is connected to a drill string and has bit (112) with a shank (120), a shoulder (122), and a bit face (124). The retention system (220) comprises ...
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WO/2020/056153A1 |
A cutting assembly is configured to be coupled to a drum that is rotatable about an axis. The cutting assembly includes a block having a leading surface and an inner surface. The inner surface forms a block bore extending along an axis t...
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WO/2020/056007A1 |
Embodiments disclosed herein relate to polycrystalline diamond compacts that have a substrate including a cementing constituent constituting less than 13 weight percent (wt%) of the substrate, the cementing constituent including a cobalt...
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WO/2020/049102A1 |
A downhole wellbore treatment system for and a method of treating an inner surface (FT) of a wellbore (W) is provided. The system comprises an elongate conduit (50) such as a flexible hose (50) for conveying treatment fluid from the surf...
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WO/2020/043504A1 |
A percussive drill bit having a head and an axially rearward skirt. A plurality of ribs project radially outward at the skirt and define lengthwise extending channels. The ribs and channels, in the lengthwise direction are curved or angl...
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WO/2020/046871A1 |
A bit used in a downhole environment has an active element that is movable relative to the bit. The bit is rotated in the downhole environment, and at least one downhole parameter is measured. The at least one downhole parameter is compa...
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WO/2020/043505A1 |
A percussive rock drill bit comprising a head provided at one end of an elongate shank, a plurality of a peripheral gauge support segments supporting a set of gauge buttons. The forward facing front face of the bit head comprises respect...
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WO/2020/041432A1 |
Cutting elements include a carbonate diamond-bonded body that is sintered under HPHT conditions in the presence of a carbonate material, where the body includes a matrix phase of intercrystalline bonded diamond with interstitial regions ...
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WO/2020/034349A1 |
A hard rock coring drilling tool, comprising an outer core tube (5) and a hollow drill bit (1), wherein the drill bit (1) is installed at a lower end of the outer core tube (5), outer walls of the outer core tube (5) and the drill bit (1...
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WO/2020/037134A1 |
Earth boring tools having offset blades with a plurality of fixed cutters having side rake or lateral rakes configured for improving chip removal and evacuation, drilling efficiency, and/or depth of cut management as compared with conven...
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WO/2020/033111A1 |
A method for characterizing damage to bits or bottom hole assemblies can include identifying, via a supervised learning model, a location, an extent, a type, a consistency, or any combination thereof of damage to a bit or a bottom hole a...
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WO/2020/033560A1 |
A drag bit includes a blade extending from the bit body and supporting inner cutters proximate the longitudinal axis and outer cutters spaced from the longitudinal axis. The inner cutters are rotationally offset from the outer cutters. D...
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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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