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Patent Searching and Data


Matches 1 - 50 out of 8,806

Document Document Title
WO/2018/107304A1
The invention relates to a pressurised fluid flow system for a reverse circulation down-the-hole hammer which comprises a coaxial jacket arranged between an outer casing and a piston which reciprocates due to changes in the pressure of t...  
WO/2018/107305A1
The invention relates to a pressurised fluid flow system for a down-the-hole hammer, comprising principal and auxiliary chambers that exert work on a piston. The auxiliary chambers are formed around respective recesses in the piston and ...  
WO/2018/108656A1
The invention relates to a drill head (2) for a drill (1), which drill head has a top face (9) for removing mineral material, a bottom face (10) for fastening to a shaft (3) of the drill (1), and an axis of rotation (6), which extends ce...  
WO/2018/106577A1
Methods of drilling earth formations may involve removing a portion of an underlying earth formation utilizing cutting elements of an earth-boring drill bit. A rotational speed of the drill string may be sensed utilizing a first sensor. ...  
WO/2018/106248A1
A system that includes a drillstring with a bottomhole assembly (BHA). The system also includes at least one stabilizer or reamer integrated with the BHA, wherein each of the at least one stabilizer or reamer includes a position adjustme...  
WO/2018/106218A1
The present disclosure provides a method of forming an inner barrel assembly by installing a fluid collection liner including a pre-formed porous material that is able to retain a reservoir fluid in an inner barrel to form an inner barre...  
WO/2018/102707A1
Downhole assemblies comprise at least one sensor configured to sense at least one sense a parameter relating to a downhole condition. The downhole assembly further includes a communications assembly having at least one device for control...  
WO/2018/099959A1
A multi-indenter drill bit comprising a plurality of indenters arranged on a drilling surface of a bit face, the ratio of the total indenter area to the bit face area being defined by a parameter KPI 1 (expressed as a percentage); the ra...  
WO/2018/094450A1
A core sampling system comprises at least one hollow drill rod, each drill rod arranged to be connected endwise to an adjacent drill rod so as to define a string of drill rods that define an internal drill rod space for receiving core ma...  
WO/2018/095441A1
A single cone bit having a rotating tooth comprising a drill body (1), and a cone (2) transmittingly connected to the drill body (1); cutting teeth are provided on the cone (2), and at least one of the cutting teeth on the cone (2) is a ...  
WO/2018/090098A1
A method of application of hard facing to wear parts, the method including the steps of providing at least one anchor portion on a wear part and attaching hard facing to the wear part using at least the at least one anchor portion.  
WO/2018/093326A1
Drill bit insert with a sintered cemented carbide body including a hard phase of tungsten carbide (WC) and a binder phase wherein the cemented carbide comprises 5.0 –7.0 wt % Co, 0.10–0.35 wt % Cr, and a Cr/Co weight ratio of 0.015 ...  
WO/2018/087173A1
The invention concerns a rock-cutting tool and the method for manufacturing this tool that comprises cutters (3) comprising a layer (5) of synthetic polycrystalline diamond (PCD), a diamond impregnation layer (6) with diamond particles a...  
WO/2018/088770A1
The present invention relates to an excavation bit capable of facilitating the installation of a steel pipe, and to an excavation steel pipe. The excavation bit comprises: a bit body formed elongated in the longitudinal direction so as t...  
WO/2018/085575A1
A bottom hole assembly (BHA) contains a motor and a section mill for milling in an uphole direction after blade extension with circulating fluid through the BHA. Below the section mill is sensing equipment to detect location of a bridge ...  
WO/2018/084839A1
The present disclosure provides a sintering assembly and a polycrystalline diamond compact (PDC) including a acid-labile leach-enhancing material, a PDC including cavities formed by removal of an acid-labile leach-enhancing material, and...  
WO/2018/078792A1
[Problem] To provide an expansion bit configured so as to reduce the energy loss of the expansion bit and to prevent a reduction in boring efficiency by preventing the dislodgement of an expansion bit teeth. [Solution] A plurality of con...  
WO/2018/080490A1
The present disclosure provides a polycrystalline diamond compact (PDC) including a substrate and a polycrystalline diamond table including a sintering aid compound, a dissociated non-sintering aid component, a derivative compound, or a ...  
WO/2018/076095A1
An encased soil auger apparatus is provided. The encased soil auger apparatus comprises an auger casing forming a hollow cylindrical body. A wall of the auger casing has a plurality of openings having a predetermined size for enabling pa...  
WO/2018/068818A1
The invention relates to a drilling crown (11) for the drilling, more particularly the rotary-percussive drilling, of a hole, more particularly of a tap hole of a melting furnace. The drilling crown (11) has a drilling head (10) comprisi...  
WO/2018/067505A1
Polycrystalline diamond cutters have a substrate (110), a diamond body (120) including a planar oriented portion (240) and a projecting portion (250), and a passage (130) extending through the cutter along an axis (140) from an opening i...  
WO/2018/067142A1
A rolling element assembly includes a rolling element rotatable about a rotational axis when positioned within a cavity defined on a bit body of a drill bit, and a compliant retainer positioned within a retainer slot defined in the bit b...  
WO/2018/055728A1
An excavation tool according to the present invention comprises an attachment member provided with: a tool main body which is provided with an attachment hole section and to which a striking force is applied in the axial direction front ...  
WO/2018/057942A1
A cutting element comprises a supporting substrate exhibiting a three-dimensional, laterally elongate shape, and a cutting table of a poly crystalline hard material attached to the supporting substrate and comprising a non-planar cutting...  
WO/2018/055549A1
A shaft enlargement arrangement for a boring system is provided, the shaft enlargement arrangement comprising a hollow column proximate a lower end of the boring system. A reamer section comprising a downwardly tapering first cutter head...  
WO/2018/052118A1
Provided is a core drill capable of reducing powder dust that scatters outward during drilling work, even on a drilling spot having, at a location immediately near thereto, a wall or the like vertical to the surface to be drilled. An exe...  
WO/2018/050796A1
A method for manufacturing an impregnated segment includes forming a base tier by depositing one or more layers of molten metallic material. The base tier has a plurality of cavities. The method further includes inserting at least one su...  
WO/2018/050267A1
The invention relates to a drill head (1) of a hard material for a drilling tool (2), wherein the drill head (1) has at least one suction opening (4) at a working end (3), via which suction opening drill cuttings can be suctioned, and th...  
WO/2018/047962A1
Provided is a drilling tool, wherein a bit head (3) that can rotate about a bit center line (L) separated from an axis (O) on the outer circumference side is mounted to the distal end of a shank device (1) that is rotated about the axis ...  
WO/2018/045187A1
A rotary coring bit for use in rotary sidewall coring in a wellbore, the coring bit comprising: a rotary coring bit body forming a core chamber within; and a core catching torsion spring disposed within the core chamber, the core catchin...  
WO/2018/036567A1
A self-adaptive differential pressure-type drill bit, which is a pulse jet-type central differential pressure drill bit, comprising a reaming drill bit (2), a pressure adjustment component (3), a transmission mechanism (4), a pilot drill...  
WO/2018/035981A1
A polygonal composite sheet matrix comprising a diamond comprises a hard alloy (1). A top surface of the hard alloy (1) is provided with multiple annular polygonal protrusions. A groove is arranged between every two annular polygonal pro...  
WO/2018/034657A1
A modular reaming device incorporable into a tubular string. The modular reamer can include a tubular body having a first end and a second end and an internal bore, the internal bore extending longitudinally through the tubular body from...  
WO/2018/035221A1
Methods of and systems for performing a reaming operation at a wellsite are disclosed. The method and system involve measuring surface drilling parameters (e.g., surface torque and surface weight on bit) from surface sensors positioned a...  
WO/2018/029130A1
A bit for drilling a wellbore includes: a shank (3) having a coupling formed at an upper end thereof; a bit body (2) mounted to a lower end of the shank; a gage section (5) forming an outer portion of the drill bit; and a cutting face (4...  
WO/2018/030464A1
This excavating tool has: a casing pipe (1) centered around an axial line (O); a ring bit (2) rotatably engaged with and attached to the tip portion of the casing pipe; and a pilot bit (3) inserted into the inner circumferential portion ...  
WO/2018/026356A1
Structural metal-matrix composites (MMC) comprising a foam matrix material infiltrated with a binder material, where the binder material binds the foam matrix material to a structural element of a tool, thereby enhancing three- dimension...  
WO/2018/026981A1
Connections between drill pipe sections and drill bits used for boring into the earth may comprise two elements threadably attachable one to another. A first element may comprise a rotor rotatable with respect to a stator. A second eleme...  
WO/2018/017127A1
A drill bit includes a bit body including one or more blades extending therefrom and a plurality of cutters secured to the one or more blades. A rolling element assembly is positioned within a cavity defined on the bit body and includes ...  
WO/2018/017103A1
Downhole core sampling apparatus including first and second sealing elements and at least one pump configured to pump wellbore fluid from the annular space defined by the sealing elements. The downhole core sampling apparatus is capable ...  
WO/2018/013126A1
A system and method to minimize trips in a wellbore during coiled tubing operations by simultaneously deploying on coiled tubing as part of the bottom hole assembly a wireline tool and an intervention tool. The wireline tool includes a f...  
WO/2018/008645A1
A boring device for forming an increased-diameter section at the bottom of a mounting hole comprises: a shaft provided with a contact surface which is provided at the front end thereof and which comes into contact with the bottom of the ...  
WO/2018/009438A1
A method of forming a cutting element comprises disposing diamond particles in a container and disposing a metal powder on a side of the diamond particles. The diamond particles and the metal powder are sintered so as to form a polycryst...  
WO/2018/000781A1
Disclosed is an impregnated diamond drill bit having a double cutting structure. The impregnated diamond drill bit comprises an API connector (12), a drill body (11) connected to the API connector (12). A central channel (2), a plurality...  
WO/2017/223259A1
A roller reamer for downhole operations in boreholes, such as are drilled for oil and/or natural gas production, or as injection wells. An elongated main body has preferably three circumferentially spaced pockets. A roller assembly is pr...  
WO/2017/219097A1
A method and apparatus for obtaining a sample of soil using a sample collection means (31) which is placed flat on a selected ground area, the collection means (31) having an opening (33) to receive an upright tubular body (12) which is ...  
WO/2017/218975A1
A drill bit includes a bit body having one or more blades extending therefrom, a plurality of cutters secured to the one or more blades, and a rolling element assembly positioned within a cavity defined on the bit body. The rolling eleme...  
WO/2017/216540A1
The invention relates to a reaming component (10; 110) for self-drilling hollow bars, used in ground engineering applications. The reaming component (10; 110) has a hollow tubular sleeve (1; 101 ) with a longitudinal axis, a number of ex...  
WO/2017/218000A1
A drill bit includes a bit body having one or more blades extending therefrom, a plurality of cutters secured to the one or more blades, and a rolling element assembly positioned within a cavity defined on the bit body. The rolling eleme...  
WO/2017/213620A1
In some aspects, the present disclosure includes systems and methods for rotatably coupling a bottom-hole assembly to a drilling shaft for use in subterranean drilling operations. In one embodiment, the methods of the present disclosure ...  

Matches 1 - 50 out of 8,806