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:
Nov. 27, 2018
Filed:
Jun. 27, 2014
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Michael Wilbert Mitchell, Cypress, TX (US);
Damon Henry Nettles, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/124 (2006.01); E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
E21B 34/06 (2013.01); E21B 33/124 (2013.01);
Abstract
A straddle packer system includes an upper seal member, a lower seal member, an upper equalizing valve configured to equalize pressure across the upper seal member, a lower equalizing valve configured to equalize pressure across the lower seal member, and an anchor. The upper and lower seal members do not move when actuating the upper and lower equalizing valves, respectively, into an unloading position to equalize the pressure across the upper and lower seal members.