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:
Sep. 06, 1988
Filed:
Jun. 03, 1987
Applicant:
Inventor:
Thomas K Perkins, Dallas, TX (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166275 ; 166294 ;
Abstract
A process for recovery of hydrocarbons from a porous reservoir comprising injecting substantially simultaneously into the reservoir a gas and an aqueous liquid including at least one surface active agent present in an amount up to about 50 percent of the critical micellar concentration such that menisci are formed in certain ones of the pore spaces of the reservoir to an extent that oil droplets lodged in others of the pore spaces are swept by the injected mixture toward a production well.