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:
Jul. 05, 2022
Filed:
Dec. 07, 2017
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Jerod Bushman, Tomball, TX (US);
Shelby Wayne Carter, Sugar Land, TX (US);
Henrix Soto, Houston, TX (US);
Jeffrey Ham, Pearland, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 21/10 (2006.01); E21B 47/06 (2012.01); E21B 47/10 (2012.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 21/10 (2013.01); E21B 47/06 (2013.01); E21B 47/10 (2013.01);
Abstract
An apparatus includes a conduit forming part of a drilling fluid return path from a wellbore. The the conduit has at least one well outflow control in the conduit. The at least one well fluid outflow control has at least two annular flow restrictors each separately operable to close to a respective inner diameter.