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US Patent 11174702 Dual flapper isolation valve

Patent 11174702 was granted and assigned to Schlumberger on November, 2021 by the United States Patent and Trademark Office.

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Is a
Patent
Patent

Patent attributes

Patent Applicant
Schlumberger
Schlumberger
Current Assignee
Schlumberger
Schlumberger
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11174702
Date of Patent
November 16, 2021
Patent Application Number
16639288
Date Filed
August 15, 2018
Patent Primary Examiner
‌
David Carroll
Patent abstract

A downhole tool includes an upper flow tube connected to a lower flow tube, an upper flapper sub-assembly including an upper flapper, and a lower flapper sub-assembly including a lower flapper. The upper and lower flapper sub-assemblies are installed with respect to the upper and lower flow tubes in an “O” configuration such that the upper and lower flapper sub-assemblies are in a closed position. The upper and lower flapper sub-assemblies are capable of being independently actuated. The upper and lower flow tubes remain stationary when the upper flapper sub-assembly or the lower flapper sub-assembly is actuated from the closed position to an open position.

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