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. 16, 1988
Filed:
Jun. 11, 1986
Applicant:
Inventor:
Gifford G McClaflin, Ponca City, OK (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166310 ; 166 751 ; 166 91 ; 166267 ; 166371 ;
Abstract
A method of improving production of heavy crude oil from a well by mixing a first solution of water soluble surfactant and water, and preferably forming a mixture of the first solution and an oil solvent, and pumping the mixture into the well to mix with the heavy crude oil to be produced. A desirable surfactant is a water soluble ethoxylated nonylphenol and a desirable oil solvent is kerosene distillate.