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公开(公告)号：US20250146365A1
公开(公告)日：2025-05-08
申请号：US18501520
申请日：2023-11-03
Applicant: Schlumberger Technology Corporation
Inventor： J. Daniel Belnap
Abstract: A device may include a bit body with a rotational axis in a longitudinal direction. A device may include at least one blade coupled to the bit body with an outward surface. A device may include a rolling cutting element positioned on the outward surface. A device may include a fixed cutting element positioned with a fixed cutting profile at least partially rotationally overlapping with a rolling cutting profile of the rolling cutting element.
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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
Applicant: Schlumberger Technology Corporation
Inventor： 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: E21B10/567
CPC classification number: E21B10/5673
Abstract: 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
Applicant: Schlumberger Technology Corporation
Inventor： 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: E21B10/567
Abstract: 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：US11952896B2
公开(公告)日：2024-04-09
申请号：US17250934
申请日：2019-09-27
Applicant: Schlumberger Technology Corporation
Inventor： Yahua Bao , J. Daniel Belnap , Francis E. Leany , Ronald B. Crockett , Dwain Norris , Anatoliy Garan
IPC: E21C35/183 , E01C23/088 , E01C23/12 , B28D1/18
CPC classification number: E21C35/1831 , E01C23/088 , E01C23/127 , E21C35/1833 , E21C35/1835 , B28D1/188 , E21C35/1837
Abstract: A tool for removing material includes a body, an ultrahard insert, and a matrix. The body has a forward portion, an opposing rear portion, and a longitudinal axis therebetween. The ultrahard insert includes an ultrahard material, and the ultrahard insert is mounted to and contacts the body proximate the forward portion. The matrix contacts the body and the ultrahard insert. The matrix is mechanically interlocked with the body and at least a portion of the matrix is positioned circumferentially around at least a portion of the forward portion of the body.
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公开(公告)号：US20210388723A1
公开(公告)日：2021-12-16
申请号：US17250934
申请日：2019-09-27
Applicant: Schlumberger Technology Corporation
Inventor： Yahua Bao , J. Daniel Belnap , Francis E. Leany , Ronald B. Crockett , Dwain Norris , Anatoliy Garan
IPC: E21C35/183 , E01C23/088 , B28D1/18
Abstract: A tool for removing material includes a body, an ultrahard insert, and a matrix. The body has a forward portion, an opposing rear portion, and a longitudinal axis therebetween. The ultrahard insert includes an ultrahard material, and the ultrahard insert is mounted to and contacts the body proximate the forward portion. The matrix contacts the body and the ultrahard insert. The matrix is mechanically interlocked with the body and at least a portion of the matrix is positioned circumferentially around at least a portion of the forward portion of the body.
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Patent Agency Ranking
公开(公告)号：US20230257648A1
公开(公告)日：2023-08-17
申请号：US18005115
申请日：2021-07-14
Applicant: Schlumberger Technology Corporation
Inventor： Yahua Bao , J. Daniel Belnap
Abstract: Luminescent diamond is made by subjecting a volume of diamond grains to high-pressure/high-temperature conditions with or without a catalyst or pressure transfer media to cause the grains to undergo plastic deformation to produce nitrogen vacancy defects, increasing the luminescent activity/intensity of the resulting diamond material. The consolidated diamond material may be further treated to further increase luminescent activity/intensity including reducing the consolidated diamond material to diamond particles, heat treatment in vacuum, and/or air heat treatment. The resulting luminescent diamond particles display a level of luminescence intensity greater than that of conventional luminescent nanodiamond, and may be functionalized for use in biological applications.
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公开(公告)号：US20250162877A1
公开(公告)日：2025-05-22
申请号：US18851223
申请日：2023-06-15
Applicant: Schlumberger Technology Corporation
Inventor： J. Daniel Belnap
Abstract: Luminescent diamond is made by subjecting a volume of diamond grains to high-pressure/high-temperature conditions with or without a catalyst or pressure transfer media to cause the grains to undergo plastic deformation to produce internal vacancy defects, increasing the luminescent activity/intensity of the resulting diamond material. The luminescent material is then subjected to further treatment to create quantum dots on the surface of the diamond particles. Quantum dot formation can include placing the diamond particles in liquid and subjecting the particles to laser pulses. The consolidated diamond material may be treated to further increase luminescent activity/intensity including reducing the consolidated diamond material to diamond particles, heat treatment in vacuum, and/or air heat treatment. The resulting luminescent diamond particles display a level of luminescence intensity greater than that of conventional luminescent nanodiamond, and may be functionalized for use in biological applications.
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公开(公告)号：US12275005B2
公开(公告)日：2025-04-15
申请号：US18701854
申请日：2022-12-08
Applicant: Schlumberger Technology Corporation
Inventor： Yahua Bao , J. Daniel Belnap
Abstract: Luminescent diamond is made subjecting a volume of diamond grains and catalyst material to high-pressure/high-temperature (HPHT) conditions. A pressure apparatus and/or a pressure cell is specially configured to impose a differential or asymmetric pressure onto the diamond volume during the HPHT conditions. This subjects the diamond grains to differential strain that increases the degree of plastic deformation of the diamond grains to increase the formation of nitrogen vacancy centers. Diamond pellets formed by such process and subjected to differential pressure can have an aspect ratio, or an aspect ratio change, of greater than one. The temperature of the HPHT process is 1.800° C. or less to facilitate desired nitrogen migration to preferentially promote formation of NV centers over NVN and N3 centers in the diamond pellets to provide a degree of luminescence in a red wavelength spectrum greater than diamond pellets formed by some other HPHT processes.
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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
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.
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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
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.
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