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. 14, 1986
Filed:
Apr. 01, 1985
Applicant:
Inventors:
Dwyann Dalrymple, Duncan, OK (US);
Edward Vinson, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; E02D / ;
U.S. Cl.
CPC ...
252-8554 ; 166310 ; 405263 ;
Abstract
A method of reducing the permeability to water of a subterranean geological formation containing sandstone. The method is carried out by contacting the formation with an aqueous mixture comprising a water-soluble anionic polymer having a molecular weight greater than 100,000 and subsequently contacting the anionic polymer with a polymer stabilizing fluid comprising a water-soluble cationic polymer having a molecular weight greater than 1,000.