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公开(公告)号：US20230358102A1
公开(公告)日：2023-11-09
申请号：US18314177
申请日：2023-05-09
Applicant: Schlumberger Technology Corporation
Inventor： David Wahlquist
IPC: E21B10/573
CPC classification number: E21B10/5735
Abstract: A retention mechanism for a PCD insert includes an expansion bolt inserted through a mounting element into a bore of the PCD insert. The bore of the PCD insert has an opening diameter that is greater than a terminal diameter at a terminal end of the bore. The expansion anchor is expanded in the bore, and an interference of the expanded expansion bolt with the body of the PCD insert secures the PCD insert to the mounting element.
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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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