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:
Feb. 16, 2016
Filed:
Mar. 15, 2013
Applicant:
Weatherford/lamb, Inc., Houston, TX (US);
Inventors:
George Givens, Spring, TX (US);
Rocky A. Turley, Houston, TX (US);
Assignee:
Weatherford Technology Holdings, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 17/08 (2006.01); E21B 43/10 (2006.01);
U.S. Cl.
CPC ...
E21B 17/08 (2013.01); E21B 33/1208 (2013.01); E21B 43/10 (2013.01);
Abstract
In one embodiment, the sealing apparatus includes a mandrel having at least two portions, a first portion having a seal ring disposed on an exterior surface and a second portion without a seal ring disposed on an exterior surface. In one embodiment, the seal ring is disposed around the first portion. In another embodiment, the burst and collapse integrity of the first portion is substantially the same as the second portion.