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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 9334711 B1

PDFFull Text
Date of Patent:
May. 10, 2016

Filed:

Jan. 24, 2014

System and method for cooling a rotating control device

Applicant:

Weatherford Technology Holdings, Llc, Houston, TX (US);

Inventors:

Don M. Hannegan, Fort Smith, AR (US);

Thomas F. Bailey, Abilene, TX (US);

Melvin T. Jacobs, Fort Smith, AR (US);

Nicky A. White, Poteau, OK (US);

Assignee:

Weatherford Technology Holdings, LLC, Houston, TX (US);

Attorney:

Strasburger & Price, LLP

Primary Examiner:

Zakiya W Bates

Int. Cl.
CPC ...
E21B 36/00 (2006.01); E21B 47/00 (2012.01); E21B 21/00 (2006.01); E21B 33/08 (2006.01); E21B 43/10 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
E21B 36/001 (2013.01); E21B 21/00 (2013.01); E21B 33/085 (2013.01); E21B 33/13 (2013.01); E21B 43/10 (2013.01);
Abstract

A Drill-To-The-Limit (DTTL) drilling method variant to Managed Pressure Drilling (MPD) applies constant surface backpressure, whether the mud is circulating (choke valve open) or not (choke valve closed). A sensor measures the temperature in a cavity defined by a rotating control device 'RCD' first sealing element and second sealing element, an inner member and a tubular. The RCD cavity is cooled by communicating/supplying or calculating/cooling fluid to the RCD cavity.

Find Patent Forward Citations

Hannegan, Don. (2016). System and method for cooling a rotating control device (U.S. Patent No. 9334711). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9334711

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

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