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:
Apr. 13, 1976
Filed:
Apr. 19, 1974
Curtis B Threlkeld, Bartlesville, OK (US);
James E Hessert, Bartlesville, OK (US);
Richard L Clampitt, Bartlesville, OK (US);
Riley B Needham, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A method for reducing subterranean formation permeability to brines wherein the formation is penetrated by at least one well bore comprising, injecting into the formation two slugs of an aqueous polymer solution interspaced with a brine slug. A method for reducing the quantity of water recovered from a subterranean formation which is penetrated by at least one well bore wherein in one embodiment prolonged mobility control and/or plugging is maintained with the injection into the formation of slugs of aqueous solutions of at least two distinguishable viscosity increasing agents separated by a brine spacer slug.