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. 10, 1992
Filed:
Oct. 01, 1990
Michael G DaGue, Houston, TX (US);
Texaco Inc., White Plains, NY (US);
Abstract
The invention is a method of recovering hydrocarbons from an underground hydrocarbon formation having at least one injecting well and at least one production well which comprises injecting a microemulsion into the formation through an injection well, driving said microemulsion through the formation and producing hydrocarbons through a production well, said microemulsion comprised of an internal phase of a primary amine having from about 8 to about 22 carbon atoms, lignin, a water-soluble anionic sulfonate surfactant, a solubilizer and an oil, and an external phase of brine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile