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. 03, 2018
Filed:
Nov. 17, 2015
Applicant:
Weatherford Technology Holding, Llc, Houston, TX (US);
Inventors:
John Vinh Leba, Cypress, TX (US);
Mario M. Reyna, Pasadena, TX (US);
Gordon Thomson, Houston, TX (US);
Chau Nguyen, Katy, TX (US);
Jerlib J. Leal, Houston, TX (US);
Walter Scott Dillard, Houston, TX (US);
Assignee:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 17/08 (2006.01); E21B 33/06 (2006.01); E21B 33/08 (2006.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 17/085 (2013.01); E21B 33/06 (2013.01); E21B 33/085 (2013.01);
Abstract
An annular isolation device for managed pressure drilling includes a first housing portion coupled to a second housing portion; a packing element at least partially disposed in the first housing portion; a penetrator coupled to the first housing portion; and a carrier coupled to the second housing portion, wherein the carrier is configured to receive a portion of the penetrator.