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:
Nov. 17, 2020
Filed:
Feb. 06, 2017
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventor:
Joe Noske, Houston, TX (US);
Assignee:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/117 (2012.01); E21B 34/14 (2006.01); E21B 47/06 (2012.01); E21B 47/12 (2012.01); E21B 34/10 (2006.01); E21B 47/10 (2012.01);
U.S. Cl.
CPC ...
E21B 47/117 (2020.05); E21B 34/10 (2013.01); E21B 34/14 (2013.01); E21B 47/06 (2013.01); E21B 47/10 (2013.01); E21B 47/12 (2013.01); E21B 2200/05 (2020.05);
Abstract
An isolation valve for use with a tubular string includes a tubular housing for connection with the tubular string; a first closure member disposed in the housing and movable between an open position and a closed position; a second closure member disposed in the housing and movable between an open position and a closed position; a chamber formed between the first closure member and the second closure member when the first and second closure members are in the closed position; and a leak detection device configured to measure a fluid flow into the chamber.