US Patent 11773678 Barrier arrangement in wellhead assembly
Patent 11773678 was granted and assigned to Dril-quip on October, 2023 by the United States Patent and Trademark Office.
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US Patent 11773678 Barrier arrangement in wellhead assembly
Article
Patent abstract
A subsea wellhead assembly having an arrangement of primary well barriers provided in equipment that is located within the well and/or the wellhead housing is provided. The subsea wellhead assembly may include a tubing hanger positioned in or below a wellhead housing coupled to a subsea well, a tree cap fluidly coupled to the tubing hanger and disposed atop the wellhead housing, and a pair of master production valves configured to be selectively actuated from an open position to a closed position to shut in the subsea well, each of the pair of master production valves located within or below the wellhead housing.
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andrew B. Mitchell
Blake T. DeBerry
Chris D. Bartlett
Daniel J. McLaughlin
Darren W. Mills
David A. Scantlebury
Gregory K. Norwood
Marcus Smedley
Raymond Guillory
Date of Patent
October 3, 2023
Patent Application Number
17889232
Date Filed
August 16, 2022
Patent Citations
Patent Primary Examiner
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