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. 30, 1997
Filed:
Apr. 17, 1996
Applicant:
Inventors:
Mary Anne Hardy, Oud Ade, NL;
O Marlene Isenberg, Duncan, OK (US);
Assignee:
Halliburton Energy Services, Inc., Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166295 ; 166294 ; 507211 ; 507216 ; 507225 ; 507237 ; 507903 ; 523130 ;
Abstract
The present invention relates to methods and compositions for reducing the production of water from water and oil producing subterranean formations. The methods basically comprise the introduction of an aqueous polymer composition into the water producing zones of the formation which cross-links after being placed therein. The compositions of the invention are comprised of a heavy brine and a graft copolymer of a hydrophilic polymer and a phosphonate.