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:
Oct. 23, 2001
Filed:
Nov. 20, 1998
Applicant:
Inventors:
William C. Richardson, Bellaire, TX (US);
Kenneth R. Kibodeaux, Katy, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/316 ; E21B 4/324 ;
U.S. Cl.
CPC ...
E21B 4/316 ; E21B 4/324 ;
Abstract
An enhanced oil recovery process uses an injectant containing water and an additive. The additive is an organic compound having a total of 1 to 10 carbons and at least one functional group containing a heteroatom. The additive is present at a concentration of between about 0.01% and about 20% by weight of the composition. The injectant is injected at a temperature of between about 100° F. to about 500° F. Hot water flooding with the additive provides enhanced oil recovery in medium to heavy oil reservoirs.