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:
Mar. 09, 1982
Filed:
Sep. 22, 1980
Vernon H Schievelbein, Houston, TX (US);
Texaco Inc., White Plains, NY (US);
Abstract
Surfactant waterflooding in oil formations containing high salinity water, e.g. water whose salinity is in excess of 50,000 part per million total dissolved solids and whose temperatures exceed about 100.degree. to 150.degree. F. is accomplished by injecting into the formation an aqueous solution of an alkylarylpolyalkoxyalkylene sulfonate containing a stabilizing amount of a normally liquid hydrocarbon. The amount of hydrocarbon employed is less than 1% and below the amount which would form a discrete discontinuous hydrocarbon zone, i.e. less than the amount of hydrocarbon which forms a conventional emulsion is employed to stabilize the surfactant-containing solution.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile