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:
Jan. 08, 2019
Filed:
Jan. 10, 2014
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Eirik Windegaard, Stavanger, NO;
Bjoern Staale Varnes, Stavanger, NO;
Niek Dijkstra, Houston, TX (US);
Geir Meling, Stavanger, NO;
Graham Watson, Aberdeen, GB;
Emmanuel Balster, Stavanger, NO;
Magnus Paulsen, Stavanger, NO;
Jone Sigmundsen, Stavanger, NO;
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/129 (2006.01); E21B 43/12 (2006.01); E21B 34/08 (2006.01); E21B 33/126 (2006.01); E21B 33/12 (2006.01); E21B 34/10 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1294 (2013.01); E21B 33/126 (2013.01); E21B 33/1208 (2013.01); E21B 33/1293 (2013.01); E21B 34/101 (2013.01); E21B 43/123 (2013.01);
Abstract
A well system includes an annular barrier separating the tubing-casing annulus into an upper annulus and a lower annulus and a barrier valve coupled with the annular barrier, the barrier valve permitting one-way fluid communication from the upper annulus to the lower annulus.