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:
Oct. 20, 2015
Filed:
Oct. 26, 2012
Applicant:
Weatherford/lamb, Inc., Houston, TX (US);
Inventors:
John P. Broussard, Kingwood, TX (US);
Christopher A. Hall, Cypress, TX (US);
Patrick J. Zimmerman, Houston, TX (US);
Glen Robitaille, North Vancouver, CA;
Assignee:
Weatherford Technology Holdings, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); E21B 33/12 (2006.01); E21B 43/04 (2006.01);
U.S. Cl.
CPC ...
E21B 33/13 (2013.01); E21B 33/1208 (2013.01); E21B 43/04 (2013.01);
Abstract
A device and method that allows a gravel slurry to placed in a wellbore from the toe towards the heel to reduce the pressure acting upon the heel of the wellbore during the gravel placement operation. By reducing the pressure acting upon the heel gravel slurry may be placed in longer sections of the wellbore in a single operation.