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公开(公告)号：US11927091B2
公开(公告)日：2024-03-12
申请号：US17138195
申请日：2020-12-30
发明人： Van Jordan Brackin , Trung Huynh , Kelley Leigh Plunkett , Kevin Clark , Andrew David Lake , Darien Louis Gurka, Jr. , Daniel Brendan Voglewede , Curtis Clifford Lanning , William Brian Atkins
摘要： A drill bit has a plurality of cutters secured to the bit body, including a gauge cutter defining a gauge diameter of the drill bit. A reciprocating gauge assembly on the bit comprises a cavity defined in the bit body, a piston reciprocably disposed in the cavity, a wear element on an outwardly facing end of the piston, a piston retainer for moveably retaining the piston in the cavity, and a spring biasing the piston outwardly to a neutral position of the wear element with respect to the gauge diameter. The wear element and piston may be urged inwardly in response to an applied load at the drill bit gauge pad, increasing the lateral depth of cut and thereby controlling the aggressiveness of the bit in response to the load.
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公开(公告)号：US11680449B2
公开(公告)日：2023-06-20
申请号：US16338907
申请日：2016-11-02
IPC分类号： E21B10/567 , E21B10/573 , E21B10/55 , E21B10/46 , B22F3/24 , B22F7/06 , C22C26/00
CPC分类号： E21B10/5673 , B22F3/24 , B22F7/06 , C22C26/00 , E21B10/5735 , B22F2003/244 , B22F2998/10 , B22F2999/00 , E21B10/46 , E21B10/55
摘要： 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 a method of forming a leached PDC using an acid-labile leach-enhancing material. The present disclosure further includes drill bits using PDCs formed suing an acid-labile leach-enhancing material.
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公开(公告)号：US20220168862A1
公开(公告)日：2022-06-02
申请号：US17594161
申请日：2019-06-10
摘要： A method includes acquiring an image of a cutter on a drill bit, determining a cutter dull condition based on the image of the cutter using a machine-learning method, wherein the machine-learning method is trained using a set of training images and a set of known cutter dull conditions, wherein each of the set of known cutter dull conditions is associated with one or more of a set of cutters depicted in the set of training images and determining a cutter degradation severity based the image of the cutter. The method also includes generating bit modification instructions based the cutter dull condition and the cutter degradation severity.
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公开(公告)号：US20200018122A1
公开(公告)日：2020-01-16
申请号：US16509077
申请日：2019-07-11
IPC分类号： E21B10/567 , E21B10/55
摘要： 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 intended direction off of the cutting face of the cutting element for drilling operations. A method may comprise rotating a drill bit to extend a wellbore into a subterranean formation, flowing a drilling fluid through the drill bit, and directing a plurality of formation cuttings away from one or more cutting elements of the drill bit by moving the cuttings along one or more channels on at least a portion of a cutting face of the one or more cutting elements.
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公开(公告)号：US20240191579A1
公开(公告)日：2024-06-13
申请号：US18079389
申请日：2022-12-12
发明人： John Harman , William Brian Atkins
IPC分类号： E21B10/633 , E21B10/43
CPC分类号： E21B10/633 , E21B10/43
摘要： A shaped cutter is disclosed for use on a drill bit. In one or more example, the shaped cutter includes a substrate including a proximal end and a distal end and defining a cutter axis extending between the proximal and distal ends. A cutting table secured to the proximal end of the substrate includes a cutting face with a central boss axially extending from the cutting face and a plurality of ribs radially extending across the cutting face from the boss to a periphery of the cutting table. The cutting face may recede axially from the periphery towards the central boss, such as by defining a planar section, a plurality of intersecting planar sections, and/or a concave (e.g., frustoconical) shape between adjacent ribs.
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公开(公告)号：US10718166B2
公开(公告)日：2020-07-21
申请号：US15312286
申请日：2015-06-17
发明人： Qi Liang , William Brian Atkins
IPC分类号： E21B10/567 , B23K26/08 , B23K26/70 , B23K26/12 , B23K26/352 , C01B32/28 , B24D3/10 , B23K103/00
摘要： The present disclosure relates to methods of laser-leaching polycrystalline diamond (PCD), devices for performing such methods, and to laser-leached PCD and elements and drill bits containing laser-leached PCD.
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公开(公告)号：US10399258B2
公开(公告)日：2019-09-03
申请号：US14962896
申请日：2015-12-08
IPC分类号： B22C9/02 , B22D19/14 , B22D27/04 , B29C43/18 , B22C9/10 , B22C21/14 , B22F3/03 , B22F3/105 , B22F5/00 , E21B10/00 , B29C64/00 , B33Y10/00 , B33Y80/00 , B29L31/00
摘要： There is disclosed herein a method of designing a mold, the mold being at least part of a unitary body to be formed from a plurality of layers by 3D printing, the method including defining an inner surface of the mold corresponding to at least part of an outer surface of an object to be molded in the mold; selecting a first material from which at least part of the mold is to be printed; and selecting a second material from which at least another part of the mold is to be printed, the second material having a higher thermal and/or electrical conductivity than the first material, wherein at least one of the layers from which the mold is to be formed by 3D printing includes areas to be printed from each of the first and second materials.
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公开(公告)号：US10287823B2
公开(公告)日：2019-05-14
申请号：US15105218
申请日：2015-06-25
发明人： Gagan Saini , William Brian Atkins
IPC分类号： E21B10/573 , E21B10/567 , B23P15/28 , B23K1/00 , B23K35/00 , E21B10/46 , E21B10/42
摘要： The microstructure of braze joints in polycrystalline diamond compact (PDC) cutters may be tailored to increase the shear strength of the braze joint, for example, by increasing the amount of a dispersed particulate microstructure therein. A method for forming a dispersed particulate microstructure may include brazing a polycrystalline diamond table to a hard composite substrate with a braze alloy at a braze temperature between 5° C. above a solidus temperature of the braze alloy and 200° C. above a liquidus temperature of the braze alloy; and forming a braze joint between the polycrystalline diamond table and the hard composite substrate that comprises at least 40% by volume of the dispersed particulate microstructure composed of a particulate inter-metallic phase having a diameter of 0.5 μm to 2.0 μm and an aspect ratio of 1 to 5 dispersed in a ductile matrix.
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公开(公告)号：US10252329B2
公开(公告)日：2019-04-09
申请号：US14787133
申请日：2015-01-28
发明人： William Brian Atkins , Clayton Arthur Ownby , Michael Clark , Grant O. Cook, III , Garrett T. Olsen
IPC分类号： B22D27/04 , B22D33/00 , F27D15/02 , B22D19/06 , B22F7/06 , B22F3/26 , C22C1/10 , C22C29/06 , B22F5/00
摘要： A mold transfer assembly includes a transfer housing providing an interior defined by one or more sidewalls and a top. The transfer housing is sized to receive and encapsulate a mold as the mold is moved between a furnace and a thermal heat sink. An arm is coupled to the transfer housing to move the transfer housing and the mold encapsulated within the transfer housing between the furnace and a thermal heat sink. The transfer housing exhibits one or more thermal properties to control a thermal profile of the mold.
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