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:
Jun. 05, 2018
Filed:
Jun. 21, 2016
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Kevin L. Gray, Houston, TX (US);
Thomas F. Bailey, Abilene, TX (US);
James Chambers, Hackett, AR (US);
Assignee:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/08 (2006.01); E21B 21/08 (2006.01); E21B 7/12 (2006.01); E21B 47/06 (2012.01); E21B 47/12 (2012.01); G01V 11/00 (2006.01); E21B 3/02 (2006.01); E21B 33/064 (2006.01); E21B 47/00 (2012.01); E21B 17/01 (2006.01);
U.S. Cl.
CPC ...
E21B 33/085 (2013.01); E21B 3/02 (2013.01); E21B 7/12 (2013.01); E21B 21/08 (2013.01); E21B 33/064 (2013.01); E21B 47/00 (2013.01); E21B 47/06 (2013.01); E21B 47/065 (2013.01); E21B 47/12 (2013.01); E21B 47/122 (2013.01); G01V 11/002 (2013.01); E21B 17/01 (2013.01);
Abstract
A rotating control device (RCD) for use with a drilling unit includes a body having a flange formed at an end thereof for coupling to the drilling unit; a seal assembly for receiving and sealing against a tubular; a bearing assembly for supporting rotation of the seal assembly relative to the body; a releasable connection connecting the bearing assembly to the body; a transmitting assembly rotatable with the seal assembly; and a receiving assembly attached to a non-rotating portion of the RCD.