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:
May. 17, 2016
Filed:
Feb. 10, 2010
Applicant:
Roger Suter, Katy, TX (US);
Inventor:
Roger Suter, Katy, TX (US);
Assignee:
M-I L.L.C., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 21/10 (2006.01); E21B 21/08 (2006.01); F15B 1/02 (2006.01); F15B 1/26 (2006.01); F15B 13/043 (2006.01); F15B 20/00 (2006.01);
U.S. Cl.
CPC ...
E21B 21/106 (2013.01); E21B 21/08 (2013.01); F15B 1/022 (2013.01); E21B 21/10 (2013.01); F15B 1/26 (2013.01); F15B 13/0433 (2013.01); F15B 20/004 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/212 (2013.01); F15B 2211/575 (2013.01); F15B 2211/6355 (2013.01); F15B 2211/8633 (2013.01); F15B 2211/8752 (2013.01); F15B 2211/885 (2013.01);
Abstract
Back pressure control devices used to control fluid pressure in a wellbore require various utilities for operation, such as an air supply. With the use of an air supply, the continued operation of one or more back pressure control devices may be achieved when supply of utilities for operation of the back pressure control devices are intentionally or unintentionally interrupted.