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:
May. 10, 2005
Filed:
Feb. 27, 2003
Prentice G. Creel, Odessa, TX (US);
Charles L. Boatman, Houston, TX (US);
Sam W. Mcdonald, Midland, TX (US);
Richard H. Tate, Brownfield, TX (US);
Eldon Dwyann Dalrymple, Duncan, OK (US);
Prentice G. Creel, Odessa, TX (US);
Charles L. Boatman, Houston, TX (US);
Sam W. McDonald, Midland, TX (US);
Richard H. Tate, Brownfield, TX (US);
Eldon Dwyann Dalrymple, Duncan, OK (US);
Halliburton Energy Services, Inc., Duncan, OK (US);
Abstract
A method for recovering oil from a reservoir is provided. This method comprises passing a swelling agent into a permeable zone of the reservoir that allows fluid to flow between an injection well and a producing well. An aqueous solution is passed into the reservoir to contact the swelling agent, thereby causing the swelling agent to swell and substantially block the permeable zone. One or more injectants are passed into the reservoir to remove oil therefrom. The swelling agent inhibits the injectants from passing through the permeable zone, ensuring that the injectants pass through the areas of the reservoir containing oil.