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:
Jul. 07, 2015
Filed:
Sep. 10, 2014
Applicant:
Kuwait Institute for Scientific Research, Safat, KW;
Inventor:
Shawqui M. Lahalih, Safat, KW;
Assignee:
KUWAIT INSTITUTE FOR SCIENTIFIC RESEARCH, Safat, KW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/88 (2006.01); E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
C09K 8/887 (2013.01); C09K 8/882 (2013.01); C09K 8/885 (2013.01); E21B 43/12 (2013.01);
Abstract
The gelling agent for water shut-off in oil and gas wells is a composition that forms a gel to reduce or eliminate the flow of water in a gas or oil well. The composition is formed by mixing polyvinyl alcohol, a polyvinyl alcohol copolymer, or mixtures thereof with an amino-aldehyde oligomer, such as urea formaldehyde or melamine formaldehyde, with or without a cross-linker. The polymer composition can be used to minimize or completely shut off excess water production with insignificant reduction in hydrocarbon productivity.