The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2025
Filed:
May. 24, 2024
Halliburton Energy Services, Inc., Houston, TX (US);
Michael Linley Fripp, Singapore, SG;
Mohan Gunasekaran, Singapore, SG;
Deepesh Upadrashta, Singapore, SG;
Jon-Howard Elliott Hanson, Carrollton, TX (US);
Matthew Gassen, Carrollton, TX (US);
Rajiv Jerome Yatawara, Carrollton, TX (US);
Jason Lee Peacock, Carrollton, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A subsurface safety valve for a wellbore for production of fluids from a subsurface formation comprises a drive portion and an actuator portion. The drive portion comprises a first magnet assembly and the actuator portion comprises a second magnet assembly that is magnetically coupled to the first magnet assembly. At least one of the first magnet assembly or the second magnet assembly comprises a spatially rotated array of magnets arranged such that a magnetic field emitted from an operative side of the spatially rotated array of magnets facing a magnetic coupling is non-zero and such that the magnetic field emitted from a non-operative side of the spatially rotated array of magnets that is opposite the operative side is about zero.