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:
Dec. 06, 1994
Filed:
Jun. 02, 1993
Applicant:
Inventors:
Lee A McDougall, Houston, TX (US);
Fati Malekahmadi, Houston, TX (US);
Dennis A Williams, Houston, TX (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166278 ; 166300 ;
Abstract
Granules containing a gel breaker are used in a well treatment involving the use of a gelled fluid. The granules exhibit delayed release of the breaker to permit placement of the gelled fluid into the subterranean formation. The method of the present invention is used in gravel packing operation to degrade polymeric gelling agents used in the gravel packing liquid.