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:
Aug. 20, 1996
Filed:
Apr. 19, 1995
Applicant:
Inventors:
Harold D Brannon, Spring, TX (US);
Allan R Rickards, Pinehurst, TX (US);
Brian B Beall, Houston, TX (US);
Marshall G Ault, Spring, TX (US);
Assignee:
BJ Services Company, Tomball, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166295 ; 166294 ; 166300 ; 507211 ; 507903 ; 507921 ; 507925 ;
Abstract
High temperature blocking gel is shown for temporary workover operations. The blocking gel is prepared by blending a guar or derivatized guar polymer with an aqueous fluid. The mixing method employed mixes and pumps the guar polymer essentially unhydrated. The resulting lower viscosity minimizes friction pressure during placement.