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:
Feb. 25, 1986
Filed:
Aug. 13, 1984
David Walley, Stillwater, OK (US);
Exotek, Inc., Stillwater, OK (US);
Abstract
The water permeability of a subterranean formation is selectively reduced by introducing a non-aqueous treatment agent into the formation. The treatment agent comprises a hydrogel polymer and a non-aqueous fluid carrier. The treatment agent preferably further comprises an alkali metal carbonate when calcium-rich aqueous brines are resident in the formation. The treatment agent is maintained within the formation for a time sufficient to permit the hydrogel polymer to absorb water from the formation. As it contacts water, the hydrogel polymer swells and thereby blocks further water flow through formation pores. Treatment of formations in accordance with this method permits enhanced recovery of minerals, such as hydrocarbons, by selective reduction of water flow into producing wells or shafts.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile