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公开(公告)号：US12078016B2
公开(公告)日：2024-09-03
申请号：US18168297
申请日：2023-02-13
发明人： Manoj Mahajan , John Daniel Belnap , Xiaoge Gan , Yi Fang , Cheng Peng , Lynn Belnap , Youhe Zhang , Michael George Azar , Venkatesh Karuppiah , Anthony LeBaron , Xian Yao
IPC分类号： E21B10/567 , E21B10/42 , E21B10/26
CPC分类号： E21B10/5673 , E21B10/26 , E21B10/42
摘要： A drilling tool having a body, at least one blade extending from the body, and a first cutting element attached to the at least one blade. The first cutting element includes a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge. The elongated protrusion has a geometry including a border extending around a concave surface, a face chamfer formed around the border, and sloped surfaces extending between the border and the edge. An edge chamfer is between the face chamfer and the edge.
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公开(公告)号：US11840891B2
公开(公告)日：2023-12-12
申请号：US17270127
申请日：2019-08-21
发明人： John Daniel Belnap , Yahua Bao
IPC分类号： E21B10/567 , C04B35/528 , C04B35/645 , C04B41/00 , C04B41/50 , C04B41/87
CPC分类号： E21B10/5673 , C04B35/528 , C04B35/645 , C04B41/009 , C04B41/5057 , C04B41/87 , E21B10/567 , C04B2235/427 , C04B2235/442
摘要： Cutting elements include a carbonate diamond-bonded body that is sintered under HPHT conditions in the presence of a carbonate material, where the body includes a matrix phase of intercrystalline bonded diamond with interstitial regions including the carbonate material, where the diamond-bonded body is sintered without a substrate. A matrix casting is formed and mechanically coupled to the body after the body is sintered, and a portion of the body surface is exposed along a surface of the matrix casting. The exposed body surface is thereafter intentionally treated to induce a compressive residual surface stress that is greater than a remaining portion of the body. The compressive residual surface stress is less than about 500 MPa, and from about 100 to 500 MPa, and a remaining region the body may have a residual stress of less than about 300 MPa, and less than about 100 MPa.
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公开(公告)号：US11578538B2
公开(公告)日：2023-02-14
申请号：US17248105
申请日：2021-01-08
发明人： Manoj Mahajan , John Daniel Belnap , Xiaoge Gan , Yi Fang , Cheng Peng , Lynn Belnap , Youhe Zhang , Michael George Azar , Venkatesh Karuppiah , Anthony LeBaron , Xian Yao
IPC分类号： E21B10/567 , E21B10/42 , E21B10/26
摘要： A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.
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公开(公告)号：US20210215003A1
公开(公告)日：2021-07-15
申请号：US17248105
申请日：2021-01-08
发明人： Manoj Mahajan , John Daniel Belnap , Xiaoge Gan , Yi Fang , Cheng Peng , Lynn Belnap , Youhe Zhang , Michael George Azar , Venkatesh Karuppiah , Anthony LeBaron , Xian Yao
IPC分类号： E21B10/567
摘要： A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.
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公开(公告)号：US20190010763A1
公开(公告)日：2019-01-10
申请号：US16069689
申请日：2017-01-11
IPC分类号： E21B10/567 , E21C35/183
摘要： A cutting element includes a substrate that is axially symmetric about a central axis. The substrate has a radius perpendicular to the central axis and that extends from the central axis to an outer surface of the substrate. A super-hard material is coupled to the substrate, and the central axis passes through the super-hard material. The super-hard material has an external surface defining at least one ridge protruding from a remainder of the external surface. A central point on the central axis is offset from the external surface of the super-hard material by a distance equal to the radius of the substrate. A distance measured from the external surface of the super-hard material to the central point is greatest at a position between 25° and 45° from the central axis of the substrate.
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公开(公告)号：US11828108B2
公开(公告)日：2023-11-28
申请号：US16069689
申请日：2017-01-11
IPC分类号： E21B10/567 , E21C35/183 , E01C23/088
CPC分类号： E21B10/5673 , E21C35/183 , E01C23/088 , E21C35/1837
摘要： A cutting element includes a substrate that is axially symmetric about a central axis. The substrate has a radius perpendicular to the central axis and that extends from the central axis to an outer surface of the substrate. A super-hard material is coupled to the substrate, and the central axis passes through the super-hard material. The super-hard material has an external surface defining at least one ridge protruding from a remainder of the external surface. A central point on the central axis is offset from the external surface of the super-hard material by a distance equal to the radius of the substrate. A distance measured from the external surface of the super-hard material to the central point is greatest at a position between 25° and 45° from the central axis of the substrate.
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7.发明公开公开(公告)号：US20230193697A1
公开(公告)日：2023-06-22
申请号：US18168297
申请日：2023-02-13
发明人： Manoj Mahajan , John Daniel Belnap , Xiaoge Gan , Yi Fang , Cheng Peng , Lynn Belnap , Youhe Zhang , Michael George Azar , Venkatesh Karuppiah , Anthony LeBaron , Xian Yao
IPC分类号： E21B10/567
CPC分类号： E21B10/5673 , E21B10/42
摘要： A drilling tool having a body, at least one blade extending from the body, and a first cutting element attached to the at least one blade. The first cutting element includes a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge. The elongated protrusion has a geometry including a border extending around a concave surface, a face chamfer formed around the border, and sloped surfaces extending between the border and the edge. An edge chamfer is between the face chamfer and the edge.
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公开(公告)号：US20210172257A1
公开(公告)日：2021-06-10
申请号：US17270127
申请日：2019-08-21
发明人： John Daniel Belnap , Yahua Bao
IPC分类号： E21B10/567 , C04B35/528 , C04B35/645 , C04B41/00 , C04B41/50 , C04B41/87
摘要： Cutting elements include a carbonate diamond-bonded body that is sintered under HPHT conditions in the presence of a carbonate material, where the body includes a matrix phase of intercrystalline bonded diamond with interstitial regions including the carbonate material, where the diamond-bonded body is sintered without a substrate. A matrix casting is formed and mechanically coupled to the body after the body is sintered, and a portion of the body surface is exposed along a surface of the matrix casting. The exposed body surface is thereafter intentionally treated to induce a compressive residual surface stress that is greater than a remaining portion of the body. The compressive residual surface stress is less than about 500 MPa, and from about 100 to 500 MPa, and a remaining region the body may have a residual stress of less than about 300 MPa, and less than about 100 MPa.
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