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WO/2021/119667A1 |
A drill bit for cutting formation comprises a bit body, a plurality of cutters, a plurality of blades with pockets to accommodate the cutters respectively. Each of the plurality of cutters has an ultra-hard layer, two side facets extendi...
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WO/2021/105109A1 |
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending shank, a first plurality of axially...
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WO/2021/107979A1 |
The present disclosure provides a cutter insert assembly, adapted for being mounted on a blade of a bit body for a drill bit. In particular, the cutter insert assemblies described herein include an insert body with a connecting arrangeme...
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WO/2021/101932A1 |
Novel biocompatible Fenton-catalytic nano-particulate composites preferably based on nanoparticle (NP)-based catalysts, one or more reducing agents, and one or more peroxide compounds are formulated to take advantage of their ability to ...
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WO/2021/091836A1 |
A cutter element 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 layer includes a cu...
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WO/2021/089562A1 |
A sensor element for a cutting tool (100) has a hard portion (110) having a sensing surface (112), first and second electrodes (120, 130), first and second sets of thermocouple wires (122, 132) and an electrically insulating portion. The...
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WO/2021/089627A1 |
The invention relates to a ground removal device and a method for producing a hole in the ground by means of a removal tool, which is designed and can be driven for the removal of ground material. According to the invention, at least one...
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WO/2021/090148A1 |
Disclosed is a drill bit for coupling in use to an RC drilling apparatus, the drill bit comprising: an annular drill bit that is rotatable to cut a formation bore face, a concentric drill bit, wherein: the annular drill bit comprises a b...
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WO/2021/089564A1 |
A sensor element for a cutting tool has a hard portion having a first sensing surface, first and second electrodes, and first and second sets of thermocouple wires, and an electrically insulating portion. The second electrode has a secon...
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WO/2021/091834A1 |
Methods for attaching cutting elements to an earth-boring bit rely on keying the cutting elements inside cavities formed in the earth-boring bit. The attachment methods may involve specific shapes of the cutting elements and the cavities...
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WO/2021/083865A1 |
A method and a drill bit (11) for sealing a blasthole wall (31) are disclosed. The method comprises drilling a blasthole to a rock by a drill bit (11) connected to a hollow drill rod (10); flushing the drill bit (11) and the hollow drill...
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WO/2021/085915A1 |
The present invention relates to an excavating apparatus for the internal excavation of circular pipes. An excavating apparatus for the internal excavation of circular pipes according to the present invention comprises: an excavation sha...
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WO/2021/080900A1 |
A cutting element includes a base and a cutting face at opposite axial ends, a side surface extending between the base and the cutting face, an edge formed between the cutting face and the side surface, an edge chamfer having a uniform s...
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WO/2021/080728A1 |
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/2021/080778A1 |
In a drill bit which has hard-faced cutting or gauge protection elements positioned to be in direct contact with subterranean formation as the bit is rotated, at least one of these elements includes a window positioned to be in direct co...
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WO/2021/077160A1 |
A milling tool for cutting an outer casing string of a wellbore, the milling tool comprising a tool body, an extendable cutting member located in the tool body configured to cut the outer casing string, and an extendable reaming block lo...
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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 ...
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WO/2021/070057A1 |
A multifunctional drilling enhancement tool (200) includes a shaft (202) having a bore (201) extending along a longitudinal direction (X); a main cutting device (210) rotatably and slidably attached to the shaft (202); a first housing (2...
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WO/2021/072352A1 |
A reamer includes a housing, a first reamer block, and a second reamer block. The first reamer block includes a leading wall. A second reamer block includes a trailing wall, the trailing wall including a recess. The leading wall is inser...
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WO/2021/059034A1 |
A cutter for use with a drill bit includes: a substrate for mounting in a pocket of the drill bit and made from a cermet material; and a head made from a superhard material, mounted to the substrate, and having a chisel inclined relative...
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WO/2021/062443A1 |
A cutting element has a cutting face with a geometry including at least one protrusion spaced a radial distance apart from an edge of the cutting element, the edge extending around an entire periphery of the cutting face, and a lower por...
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WO/2020/216874A9 |
A drill bit (10) for drilling a bore, the drill bit comprising: a housing (28); a primary cutting structure (16); an activation member (30) arranged within the housing such that the activation member can move axially under an action of f...
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WO/2021/061142A1 |
Drill bit wear can be quantified through an analysis of chemical reactions that occur during drilling. A detector measures the molar composition of a dissolved gas sample. From the molar composition, the moles of hydrogen, ethylene, and ...
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WO/2021/058249A1 |
This disclosure relates to a cutting assembly (10) for a rock excavation machine. The cutting assembly comprises a base unit (12), one or more moveable support arms (14) extending from the base unit, a drive spindle (16) rotatably mounte...
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WO/2021/047095A1 |
Disclosed is a construction method for continuous pile forming, the method comprising: a, arranging a pile casing assembly (12) of a drilling machine at the position of a pile hole; b, sinking a drill rod assembly (14) of the drilling ma...
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WO/2021/048648A1 |
A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body removably attached to a lower end of the shank and having a blade receptacle formed therethrough; a blade fixed to the body; a plura...
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WO/2021/050432A1 |
A drill bit including a body having a face and a bit axis. The face includes a cone region disposed about the bit axis, a nose region disposed radially outward from the cone region, and a shoulder region disposed radially outward from th...
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WO/2021/046335A1 |
A downhole tool for use in a downhole drill string is provided. The downhole tool includes a rotor movably coupled within a stator, and a drive shaft movably coupled within a bearing housing. The drive shaft has a first end coupled with ...
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WO/2021/040529A1 |
A device for preventing torsion in a tool string from exceeding a predetermined threshold, wherein the device comprises: - an inner mandrel for transmitting torque between said inner mandrel and a first portion of the tool string, the in...
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WO/2021/038131A1 |
A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole...
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WO/2021/041753A1 |
A cutting element may include a body, a concave cutting face formed at a first end of the body, the cutting face including one or more cutting ridges adjacent a cutting tip that are raised above the concavity of the cutting face and havi...
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WO/2021/034769A1 |
A rotary drill bitb (200A) for use with a horizontal directional drill string. A coupler (206) at a proximal axial end is configured to attach the rotary drill bit to a drill head at a distal end of the drill string. A cutting portion at...
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WO/2021/034923A1 |
A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumfer...
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WO/2021/030700A1 |
Cutting elements for earth-boring tools may include a cutting table secured to a substrate. The cutting table may include a first region at least substantially free of an infiltrant, a second region comprising the infiltrant, and a passa...
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WO/2021/025699A1 |
The present disclosure provides and earth-boring drill bit including a bit head and a shank. The shank includes a blank and a mandrel. The mandrel is concurrently formed by and secured to the blank by additive manufacturing. The mandrel ...
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WO/2021/024512A1 |
The present invention suppresses a decrease in boring efficiency and reduces the cost of repolishing by way of suppressing the progress of wear width on the distal end of a tip body of a drilling tip. Provided is a drilling tip that is m...
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WO/2021/025700A1 |
The present disclosure relates to an earth-boring drill bit including a shank, an internal region formed from at least a first alloy using additive manufacturing and secured to the shank, and an exterior region formed from at least a sec...
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WO/2021/017798A1 |
Provided is a construction method for achieving large-diameter deep mixing on the basis of resistance reduction, belonging to the technical field of pile foundation construction, organically combining a resistance reduction material with...
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WO/2021/021796A1 |
A drill bit includes multiple cutting devices and a microelectronics unit. Each cutting device of the multiple cutting devices includes a cutting layer formed to cut a rock formation and a capacitive sensor disposed adjacent the cutting ...
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WO/2021/021806A1 |
Systems and methods include a computer-implemented method for manufacturing a binder for spraying onto tools. A binder is manufactured for binding compacts onto a tool substrate. The binder is designed to provide a coating strength on th...
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WO/2021/013838A2 |
The invention relates to a drill head for creating a substantially vertical borehole in the ground, comprising: a body, which can be connected to a rotational drive of a drilling device; drilling tools, which are arranged on the body, fo...
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WO/2021/006912A1 |
Provided are systems and methods for wellbore drilling and, more particularly, example embodiments may use of one or more cutting elements including a cutting face with one or more channels capable of steering chip cuttings into an inten...
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WO/2021/004909A1 |
The present invention relates to a drill bit (100) for percussion drilling comprising: a drill bit body (101) intended to extend along an axis A and comprising a front surface (105), said front surface comprises a first circular area (11...
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WO/2021/003536A1 |
A return exhaust assembly (50) for a reverse circulation hammer H comprises return tube (52) having first and second ends and a seat (56) at or near the first end (54). An exhaust sleeve (58) has: a section (60) seated and resiliently su...
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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...
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WO/2021/003242A1 |
A reamer for drill string pullback of a horizontal directional drill includes a shaft portion defining a central axis and a first end configured for attachment with a drill string of the horizontal directional drill. A plurality of vanes...
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WO/2020/261085A1 |
A bit for drilling a wellbore includes: a body; and a cutting face. The cutting face includes: an inner section and an outer section; a plurality of blades protruding from the body, and a row of superhard cutters mounted along each blade...
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WO/2020/257326A1 |
A downhole tool assembly for use in a wellbore includes a first casing section configured to be inserted into a borehole, a second casing section configured to be inserted into the borehole, and an earth-boring tool comprising at least o...
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WO/2020/249730A1 |
A downhole tool comprising: an outer housing; a flow path arranged to permit fluid flow through the downhole tool; a tool component at least partially located within the outer housing, the tool component being arranged to be movable from...
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WO/2020/249611A1 |
The present invention relates to a guide adapter (100) for guiding a drill bit during percusion drilling, said guide adapter is intended to be arranged between the drill bit and an elongated drill string extending along an axis A, said d...
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