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公开(公告)号：US20230212914A1
公开(公告)日：2023-07-06
申请号：US18182707
申请日：2023-03-13
Inventor： Guodong Zhan , Timothy E. Moellendick , Duanwei He , Jianhui Xu
IPC: E21B10/55 , E21B10/567 , E21B10/573
CPC classification number: E21B10/55 , E21B10/5673 , E21B10/5735
Abstract: Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.
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公开(公告)号：US20240326126A1
公开(公告)日：2024-10-03
申请号：US18739864
申请日：2024-06-11
Inventor： Guodong Zhan , Timothy E. Moellendick , Bodong Li , Chinthaka Pasan Gooneratne , Duanwei He , Jianhui Xu
CPC classification number: B22F7/08 , B22F3/105 , B22F3/14 , B22F5/00 , E21B10/46 , B22F2003/1051 , B22F2003/1054 , B22F2005/001 , B22F2301/15 , B22F2302/10 , B22F2302/406
Abstract: Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.
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公开(公告)号：US12024470B2
公开(公告)日：2024-07-02
申请号：US17170006
申请日：2021-02-08
Inventor： Guodong Zhan , Jianhui Xu , Duanwei He , Abrar Alshaikh
IPC: C04B35/5831 , C04B35/645 , E21B10/00
CPC classification number: C04B35/5831 , C04B35/645 , E21B10/00 , C04B2235/386 , C04B2235/427 , C04B2235/604 , C04B2235/6567 , C04B2235/785 , C04B2235/786 , C04B2235/85
Abstract: A method of forming a composite cutter for a downhole drilling tool is described. The method includes: mixing a polycrystalline diamond powder and a cubic boron nitride powder with a molar ratio between 0.1 and 0.9 to form a catalyst-free composite mixture; placing the catalyst-free composite mixture into a mold configured in a shape of a cutter; exposing the catalyst-free composite mixture to an ultra-high-pressure, high-temperature treatment including a pressure between 11 Gigapascals (GPa) and 20 GPa, and a temperature between 1300 Kelvins (K) and 2600 K to form a solid composite body; and cooling the solid composite body to form the composite cutter.
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公开(公告)号：US20220250989A1
公开(公告)日：2022-08-11
申请号：US17170006
申请日：2021-02-08
Inventor： Guodong Zhan , Jianhui Xu , Duanwei He , Abrar Alshaikh
IPC: C04B35/5831 , C04B35/645 , E21B10/00
Abstract: A method of forming a composite cutter for a downhole drilling tool is described. The method includes: mixing a polycrystalline diamond powder and a cubic boron nitride powder with a molar ratio between 0.1 and 0.9 to form a catalyst-free composite mixture; placing the catalyst-free composite mixture into a mold configured in a shape of a cutter; exposing the catalyst-free composite mixture to an ultra-high-pressure, high-temperature treatment including a pressure between 11 Gigapascals (GPa) and 20 GPa, and a temperature between 1300 Kelvins (K) and 2600 K to form a solid composite body; and cooling the solid composite body to form the composite cutter.
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公开(公告)号：US20210371345A1
公开(公告)日：2021-12-02
申请号：US17316187
申请日：2021-05-10
Inventor： Guodong Zhan , Timothy E. Moellendick , Bodong Li , Duanwei He
IPC: C04B35/5831 , C04B35/645 , B24B19/04
Abstract: Systems and methods include a computer-implemented method can be used to make drilling tools from new wurtzite boron nitride (w-BN) superhard material. An ultra-high-pressure, high-temperature operation is performed on pure w-BN powder to synthesize w-BN and cubic boron nitride (c-BN) compact having a first size greater than particles of the pure w-BN powder. The ultra-high-pressure, high-temperature operation includes pressurizing the w-BN powder to a pressure of approximately 20 Gigapascal, heating the w-BN powder at a heating rate of 100° C./minute and cooling the w-BN powder at a cooling rate of 50° C./minute. The compact is cut to a second size smaller than the first size using laser cutting tools. The cut compact is bonded metallurgically, mechanically, or both metallurgically and mechanically onto a tool substrate to form the drilling tool.
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Patent Agency Ranking
公开(公告)号：US12042868B2
公开(公告)日：2024-07-23
申请号：US17336637
申请日：2021-06-02
Inventor： Guodong Zhan , Timothy E. Moellendick , Bodong Li , Chinthaka Pasan Gooneratne , Duanwei He , Jianhui Xu
CPC classification number: B22F7/08 , B22F3/105 , B22F3/14 , B22F5/00 , E21B10/46 , B22F2003/1051 , B22F2003/1054 , B22F2005/001 , B22F2301/15 , B22F2302/10 , B22F2302/406
Abstract: Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.
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7.发明公开公开(公告)号：US20230211414A1
公开(公告)日：2023-07-06
申请号：US17567531
申请日：2022-01-03
Inventor： Guodong Zhan , Jianhui Xu , Timothy E. Moellendick , Duanwei He
CPC classification number: B22F7/008 , B22F7/02 , B22F3/24 , B22F2003/247 , B22F2302/406
Abstract: Methods for forming a polycrystalline diamond compact (PDC) drill bit from catalyst-free synthesized polycrystalline diamonds are described. The polycrystalline diamonds are deposited within a mold. In some cases, a matrix body material is deposited within the mold, and an infiltration process is performed to bond the polycrystalline diamonds to the matrix body material to form the PDC drill bit. In some cases, a drill bit body is formed within the mold, and forming the drill bit body within the mold includes depositing a layer of matrix body material particles within the mold, depositing an adhesive ink within the mold, and curing the adhesive ink. In some cases, a sintering process is performed after forming the drill bit body to remove at least a portion of the adhesive ink and increase a density of the drill bit body to form the PDC drill bit.
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公开(公告)号：US20240308920A1
公开(公告)日：2024-09-19
申请号：US18670975
申请日：2024-05-22
Inventor： Guodong Zhan , Jianhui Xu , Duanwei He , Abrar Alshaikh
IPC: C04B35/5831 , C04B35/645 , E21B10/00
CPC classification number: C04B35/5831 , C04B35/645 , E21B10/00 , C04B2235/386 , C04B2235/427 , C04B2235/604 , C04B2235/6567 , C04B2235/785 , C04B2235/786 , C04B2235/85
Abstract: A method of forming a composite cutter for a downhole drilling tool is described. The method includes: mixing a polycrystalline diamond powder and a cubic boron nitride powder with a molar ratio between 0.1 and 0.9 to form a catalyst-free composite mixture; placing the catalyst-free composite mixture into a mold configured in a shape of a cutter; exposing the catalyst-free composite mixture to an ultra-high-pressure, high-temperature treatment including a pressure between 11 Gigapascals (GPa) and 20 GPa, and a temperature between 1300 Kelvins (K) and 2600 K to form a solid composite body; and cooling the solid composite body to form the composite cutter.
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公开(公告)号：US11866372B2
公开(公告)日：2024-01-09
申请号：US17316187
申请日：2021-05-10
Inventor： Guodong Zhan , Timothy E. Moellendick , Bodong Li , Duanwei He
IPC: C04B35/5831 , C04B35/645 , B24B19/04
CPC classification number: C04B35/5831 , B24B19/04 , C04B35/645 , C04B2235/386 , C04B2235/612 , C04B2235/6562 , C04B2235/6565 , C04B2235/762 , C04B2235/767
Abstract: Systems and methods include a computer-implemented method can be used to make drilling tools from new wurtzite boron nitride (w-BN) superhard material. An ultra-high-pressure, high-temperature operation is performed on pure w-BN powder to synthesize w-BN and cubic boron nitride (c-BN) compact having a first size greater than particles of the pure w-BN powder. The ultra-high-pressure, high-temperature operation includes pressurizing the w-BN powder to a pressure of approximately 20 Gigapascal, heating the w-BN powder at a heating rate of 100° C./minute and cooling the w-BN powder at a cooling rate of 50° C./minute. The compact is cut to a second size smaller than the first size using laser cutting tools. The cut compact is bonded metallurgically, mechanically, or both metallurgically and mechanically onto a tool substrate to form the drilling tool.
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公开(公告)号：US20210370396A1
公开(公告)日：2021-12-02
申请号：US17336637
申请日：2021-06-02
Inventor： Guodong Zhan , Timothy E. Moellendick , Bodong Li , Chinthaka Pasan Gooneratne , Duanwei He
Abstract: Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.
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