公开(公告)号：US20220290501A1

公开(公告)日：2022-09-15

申请号：US17635949

申请日：2020-08-19

申请人： BLY IP INC.

发明人： Christopher L. Drenth ,  Andrew Robert Corona

IPC分类号： E21B10/04 ,  E21B10/60 ,  E21B49/02 ,  E21B10/00 ,  E21B10/02 ,  E21B10/08 ,  E21B10/20

摘要： 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 circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.

公开(公告)号：US11008816B2

公开(公告)日：2021-05-18

申请号：US16524883

申请日：2019-07-29

申请人： Saudi Arabian Oil Company

发明人： Guodong Zhan ,  Chinthaka Pasan Gooneratne ,  Bodong Li ,  Timothy E. Moellendick

IPC分类号： E21B12/02 ,  E21B47/01 ,  E21B10/08 ,  E21B21/08 ,  E21B47/18

摘要： 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 layer. The capacitive sensor is configured to generate an electric field across the cutting layer and to transmit a signal corresponding to a voltage associated with the electric field. The microelectronics unit of the drill bit is configured to receive the signal from the capacitive sensor of each cutting device of the multiple cutting devices such that the microelectronics unit receives multiple signals and to determine an indicator of mechanical wear of the drill bit based on a change in the voltage associated with the electric field across the cutting layer of each cutting device of the multiple cutting devices using the multiple signals.

公开(公告)号：US10662769B2

公开(公告)日：2020-05-26

申请号：US15630290

申请日：2017-06-22

申请人： Baker Hughes, a GE company, LLC

发明人： Sunil Kumar ,  Anthony A. DiGiovanni ,  Danny E. Scott ,  Hendrik John ,  Othon Monteiro

IPC分类号： E21B49/08 ,  E21B47/06 ,  E21B10/42 ,  E21B47/01 ,  E21B10/08 ,  E21B10/567 ,  E21B47/00 ,  E21B10/573 ,  E21B47/024 ,  E21B47/12 ,  E21B49/00

摘要： A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.

公开(公告)号：US20190352971A1

公开(公告)日：2019-11-21

申请号：US16417079

申请日：2019-05-20

申请人： Baker Hughes, a GE company, LLC

发明人： Anton F. Zahradnik ,  Rudolf Carl Pessier ,  Don Q. Nguyen ,  Matthew J. Meiners ,  Karlos B. Cepeda ,  Michael S. Damschen ,  Mark P. Blackman ,  Jack T. Oldham ,  Ronny D. McCormick

IPC分类号： E21B10/14 ,  E21B10/16 ,  E21B10/08 ,  E21B10/42

摘要： A hybrid earth-boring bit comprising a bit body having a central axis, at least one, preferably three fixed blades, depending downwardly from the bit body, each fixed blade having a leading edge, and at least one rolling cutter, preferably three rolling cutters, mounted for rotation on the bit body. A rolling cutter is located between two fixed blades.

公开(公告)号：US20190234147A1

公开(公告)日：2019-08-01

申请号：US16267686

申请日：2019-02-05

申请人： Frictionless World LLC

发明人： Jesse Beuerlein ,  Daniel Banjo

IPC分类号： E21B7/02 ,  E21B10/08 ,  E21B19/087 ,  E21B4/16

CPC分类号： E21B7/028 ,  E02D5/801 ,  E21B4/16 ,  E21B7/005 ,  E21B10/08 ,  E21B19/087

摘要： Utilities (e.g., apparatuses, systems, methods, etc.) for use in converting a container (e.g., crate, box, packaging) within which a post hole digger (e.g., unassembled) is disposed into a stand useful for facilitating connection of the post hole digger to a tractor or the like.

公开(公告)号：US10337254B2

公开(公告)日：2019-07-02

申请号：US14960250

申请日：2015-12-04

申请人： PDB Tools, Inc.

发明人： Nam Duy Nguyen

IPC分类号： E21B10/52 ,  E21B10/16 ,  E21B10/08

摘要： An earth boring bit has rotary cutters with embedded tungsten carbide inserts and milled steel teeth. The teeth and the grooves are first milled into the cutters, with the grooves extending between bases of the teeth, parallel to the crests of the teeth. Hard facing is applied to surfaces of the teeth and the grooves, and then the cutters are heat treated. Insert sockets are drilled into the teeth, centrally disposed in crests of the teeth. The tungsten carbide inserts are secured in the insert sockets, aligned for forming cutting profiles with respective ones of the milled teeth. The cutters are preferably frustoconically shaped and used for a rotary cone rock bit, and the tungsten carbide inserts configured as chisel-shaped inserts having crests which are aligned parallel to the crests of the milled steel teeth.

公开(公告)号：US10323461B2

公开(公告)日：2019-06-18

申请号：US14894182

申请日：2014-05-27

申请人： David Hanns

发明人： David Hanns

IPC分类号： E21B10/18 ,  E21B10/08

摘要： A drill bit including: a main body portion including three legs extending therefrom, the three legs arranged around a periphery of the main body portion; a conical cutter rotatably mounted on each leg, the conical cutters positioned to allow a clearance between the conical cutter and the main body portion; a protrusion extending from the main body portion into the clearance, wherein the protrusion encourages drill cuttings away from a base region of the main body portion where the legs meet the main body portion.

公开(公告)号：US10253571B2

公开(公告)日：2019-04-09

申请号：US15302918

申请日：2014-05-01

申请人： HALLIBURTON ENERGY SERVICES, INC

发明人： Christopher C. Propes

IPC分类号： E21B10/62 ,  E21B17/042 ,  E21B7/06 ,  E21B17/046 ,  E21B10/08

摘要： A drill bit includes cutters rotatively mounted thereon. A bore is provided either directly in the drill bit or in a sleeve which is mounted on the drill bit. The bore includes a female screw thread, a circumferential groove, and one or more bearing surfaces. A cutter with a hardened table has a generally cylindrical body with a male screw thread, a circumferential groove, and one or more bearing surfaces. The cutter is engaged with the threads of the bore and then advanced until the male screw threads pass beyond the female screw threads. When the cutter is fully installed, the circumferential grooves provide relief for the screw threads so that the cutter can freely rotate within the bore.

公开(公告)号：US20190063161A1

公开(公告)日：2019-02-28

申请号：US16170270

申请日：2018-10-25

申请人： VAREL INTERNATIONAL IND., L.P.

发明人： KYLE NOBILE ,  MATTHEW CHARLES STROEVER ,  DAVID MICHEL HARRINGTON ,  KARL W. ROSE

IPC分类号： E21B10/52 ,  E21B10/16 ,  E21B10/08 ,  E21B29/00 ,  E21B33/12

摘要： A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.

公开(公告)号：US10156098B2

公开(公告)日：2018-12-18

申请号：US14409496

申请日：2013-12-13

申请人： Halliburton Energy Services, Inc.

发明人： Garrett T. Olsen

IPC分类号： E21B10/00 ,  E21B10/46 ,  E21B10/54 ,  E21B10/02 ,  E21B10/08 ,  E21B10/26 ,  E21B10/60 ,  E21B10/62 ,  E21B17/10 ,  E21B33/12 ,  E21B4/02 ,  E21B17/02

摘要： A wellbore tool may be formed, at least in part, by a fiber-reinforced hard composite portion that comprises a binder, matrix particles, and reinforcing fibers. The reinforcing fibers may have an aspect ratio ranging from equal to a critical aspect ratio (Ac) to 15 times greater than the Ac. In the formula, Ac=σf/(2τc), σf is an ultimate tensile strength of the reinforcing fibers, and τc is an interfacial shear bond strength between the reinforcing fiber and the binder or a yield stress of the binder, whichever is lower.