公开(公告)号：US20210215003A1

公开(公告)日：2021-07-15

申请号：US17248105

申请日：2021-01-08

Applicant: Schlumberger Technology Corporation

Inventor： 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: E21B10/567

Abstract: 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.

公开(公告)号：US11976519B2

公开(公告)日：2024-05-07

申请号：US17905569

申请日：2021-03-01

Applicant: Schlumberger Technology Corporation

Inventor： Feng Yu ,  Cheng Peng ,  Ronald Eyre ,  Douglas Marsh

IPC: E21B10/567

CPC classification number: E21B10/5673

Abstract: A cutting element includes a substrate and an ultrahard layer on an upper surface of the substrate, a top surface of the ultrahard layer having a ridge extending along a major dimension of the top surface from an edge of the top surface, where the ridge has a peak with at least two different roof radii of curvature, and at least two sidewalls sloping in opposite directions from the peak of the ridge at a roof angle, where a first roof angle of the ridge proximate the edge is smaller than a second roof angle in a central portion of the ridge around a longitudinal axis of the cutting element.

公开(公告)号：US20230151697A1

公开(公告)日：2023-05-18

申请号：US17905569

申请日：2021-03-01

Applicant: Schlumberger Technology Corporation

Inventor： Feng Yu ,  Cheng Peng ,  Ronald Eyre ,  Douglas Marsh

IPC: E21B10/567

CPC classification number: E21B10/5673

Abstract: A cutting element includes a substrate and an ultrahard layer on an upper surface of the substrate, a top surface of the ultrahard layer having a ridge extending along a major dimension of the top surface from an edge of the top surface, where the ridge has a peak with at least two different roof radii of curvature, and at least two sidewalls sloping in opposite directions from the peak of the ridge at a roof angle, where a first roof angle of the ridge proximate the edge is smaller than a second roof angle in a central portion of the ridge around a longitudinal axis of the cutting element.

公开(公告)号：US20210372203A1

公开(公告)日：2021-12-02

申请号：US17290785

申请日：2019-11-08

Applicant: Schlumberger Technology Corporation

Inventor： Ronald K. Eyre ,  Feng Yu ,  Cheng Peng

IPC: E21B10/567 ,  E21B10/42 ,  B23B27/14

Abstract: A cutting element may include a substrate having a non-planar upper surface with a peripheral edge, and an ultrahard layer. The upper surface may include at least one depression formed at least proximate the peripheral edge; and a compressive stress hoop extending around the upper surface adjacent the peripheral edge, extending into the at least one depression, and configured to reduce tensile stress in the ultrahard layer. The ultrahard layer may be on the substrate and may have a non-planar top surface and an interface formed between the ultrahard layer and the substrate.

公开(公告)号：US12078016B2

公开(公告)日：2024-09-03

申请号：US18168297

申请日：2023-02-13

Applicant: Schlumberger Technology Corporation

Inventor： 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: E21B10/567 ,  E21B10/42 ,  E21B10/26

CPC classification number: E21B10/5673 ,  E21B10/26 ,  E21B10/42

Abstract: 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.

公开(公告)号：US11578538B2

公开(公告)日：2023-02-14

申请号：US17248105

申请日：2021-01-08

Applicant: Schlumberger Technology Corporation

Inventor： 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: E21B10/567 ,  E21B10/42 ,  E21B10/26

Abstract: 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.

公开(公告)号：US12270477B2

公开(公告)日：2025-04-08

申请号：US18262768

申请日：2022-01-19

Applicant: Schlumberger Technology Corporation

Inventor： Frederic Pauchet ,  Edmund Peter McHugh ,  J. Daniel Belnap ,  Cheng Peng ,  David Wahlquist ,  Lynn Belnap ,  Ivan Tapia ,  Scott S. Dahlgren ,  Neil Cannon

IPC: F16K1/48 ,  F16K1/38 ,  F16K1/54 ,  F16K25/00

Abstract: A needle for a choke valve assembly includes a base portion formed from a first non-superhard material and a tip portion formed from a superhard material. The needle also includes a brazed connection coupling the tip portion to the base portion. The brazed connection includes an insert formed from a second non-superhard material, in which the second non-superhard material is harder than the first non-superhard material and softer than the superhard material. In addition, the brazed connection includes a shim disposed between the insert and the base portion, a first layer of brazing material disposed between the base portion and the shim, and a second layer of brazing material disposed between the shim and the insert.

公开(公告)号：US20240418269A1

公开(公告)日：2024-12-19

申请号：US18262768

申请日：2022-01-19

Applicant: Schlumberger Technology Corporation

Inventor： Frederic Pauchet ,  Edmund Peter McHugh ,  J. Daniel Belnap ,  Cheng Peng ,  David Wahlquist ,  Lynn Belnap ,  Ivan Tapia ,  Scott S. Dahlgren ,  Neil Cannon

IPC: F16K1/54 ,  F16K1/38 ,  F16K25/00

Abstract: A needle for a choke valve assembly includes a base portion formed from a first non-superhard material and a tip portion formed from a superhard material. The needle also includes a brazed connection coupling the tip portion to the base portion. The brazed connection includes an insert formed from a second non-superhard material, in which the second non-superhard material is harder than the first non-superhard material and softer than the superhard material. In addition, the brazed connection includes a shim disposed between the insert and the base portion, a first layer of brazing material disposed between the base portion and the shim, and a second layer of brazing material disposed between the shim and the insert.

公开(公告)号：US20230193697A1

公开(公告)日：2023-06-22

申请号：US18168297

申请日：2023-02-13

Applicant: Schlumberger Technology Corporation

Inventor： 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: E21B10/567

CPC classification number: E21B10/5673 ,  E21B10/42

Abstract: 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.