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. 23, 2016
Filed:
Aug. 29, 2013
Poweltec, Rueil Malmaison, FR;
Alain Zaitoun, Rueil Malmaison, FR;
Guillaume Dupuis, Rueil Malmaison, FR;
Rashid Al Maamari, Al-Khodh, OM;
Abdulaziz Al Hashmi, Al-Khodh, OM;
Hamed Al Sharji, Muscat, OM;
Poweltec, Rueil Malmaison, FR;
Abstract
A process for the treatment of a rock formation or cavity, including the step of injecting, into the rock formation or cavity, a water solution of a water-soluble thermo-thickening polymer, the thermo-thickening polymer being able to form a gel at a threshold temperature (T), an inner temperature (T) of the rock formation or cavity being equal or superior to the threshold temperature (T), the process being characterized in that the thermo-thickening polymer is a cellulose chain, partially etherified with C-Calkyl or hydroxyalkyl groups, or a polyacrylamide-based copolymer including N-isopropylacrylamide and/or N-vinylpyrrolidone groups. Such a process is advantageous for water shutoff in gas- or oilfields, or to solve to water channelling problems between injection wells and production wells.