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公开(公告)号：US11795764B2
公开(公告)日：2023-10-24
申请号：US17408991
申请日：2021-08-23
发明人： Xiaoge Gan , Anjie Dong , Gerard Johnson , Michael George Azar , Huimin Song , Youhe Zhang , Venkatesh Karuppiah
IPC分类号： E21B10/567 , E21B10/55 , B22F5/00
CPC分类号： E21B10/5676 , E21B10/55 , E21B10/5671 , B22F2005/001
摘要： A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.
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公开(公告)号：US12078015B2
公开(公告)日：2024-09-03
申请号：US17639021
申请日：2020-08-28
发明人： Ronald K. Eyre , Yi Fang , Ronald B. Crockett , Lynn Belnap , Aaron Madsen , Haibo Zhang , J. Daniel Belnap , Christopher A. Tucker , Xiaoge Gan , Anjie Dong , Venkatesh Karuppiah
IPC分类号： E21B10/567
CPC分类号： E21B10/5673
摘要： A cutting element may include a body, a concave cutting face formed at a first end of the body, the cutting face including one or more cutting ridges adjacent a cutting tip that are raised above the concavity of the cutting face and having a length that is at least about 10% of a diameter of the cutting face. An edge is formed around a perimeter of the cutting face, and the edge has an edge angle defined between a tangent of the cutting face and a cylindrical side surface of the body, the edge angle being acute at the cutting tip and varying around the perimeter of the cutting face.
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公开(公告)号：US20220307325A1
公开(公告)日：2022-09-29
申请号：US17639021
申请日：2020-08-28
发明人： Ronald K. Eyre , Yi Fang , Ronald B. Crockett , Lynn Belnap , Aaron Madsen , Haibo Zhang , J. Daniel Belnap , Christopher A. Tucker , Xiaoge Gan , Anjie Dong , Venkatesh Karuppiah
IPC分类号： E21B10/567
摘要： A cutting element may include a body, a concave cutting face formed at a first end of the body, the cutting face including one or more cutting ridges adjacent a cutting tip that are raised above the concavity of the cutting face and having a length that is at least about 10% of a diameter of the cutting face. An edge is formed around a perimeter of the cutting face, and the edge has an edge angle defined between a tangent of the cutting face and a cylindrical side surface of the body, the edge angle being acute at the cutting tip and varying around the perimeter of the cutting face.
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公开(公告)号：US20240044213A1
公开(公告)日：2024-02-08
申请号：US18492074
申请日：2023-10-23
发明人： Xiaoge Gan , Anjie Dong , Gerard Johnson , Michael George Azar , Huimin Song , Youhe Zhang , Venkatesh Karuppiah
IPC分类号： E21B10/567 , E21B10/55
CPC分类号： E21B10/5676 , E21B10/55 , E21B10/5671 , B22F2005/001
摘要： A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.
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公开(公告)号：US20210381318A1
公开(公告)日：2021-12-09
申请号：US17408991
申请日：2021-08-23
发明人： Xiaoge Gan , Anjie Dong , Gerard Johnson , Michael George Azar , Huimin Song , Youhe Zhang , Venkatesh Karuppiah
IPC分类号： E21B10/567 , E21B10/55
摘要： A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.
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