logo

For the Inventor, By the Inventor

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.:

US 10174582 B1

PDFFull Text
Date of Patent:
Jan. 08, 2019

Filed:

Jan. 10, 2014

Wellbore annular safety valve and method

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:

Cathleen R Hutchins

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.

Find Patent Forward Citations

Quick Actions:

Windegaard, Eirik. (2019). Wellbore annular safety valve and method (U.S. Patent No. 10174582). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10174582

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…