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:
Jun. 29, 1999
Filed:
Jan. 21, 1997
Lon Allan Stuebinger, Littleton, CO (US);
Howard L McKinzie, Sugarland, TX (US);
Kevin R Bowlin, Sugarland, TX (US);
Texaco Inc, White Plains, NY (US);
Abstract
This invention relates to enhanced oil recovery (EOR) techniques for improving the production economies and recovery efficiency of hydrocarbons from a reservoir after primary depletion has occurred. The reservoir has at least two production strata. At least one production well capable of producing fluids from both strata is placed into the reservoir. At least one injection well capable of injecting fluid into both strata is placed in the reservoir. At least one combination production/injection well for producing well fluid from only one of the strata is placed into the reservoir. The produced well fluid is separated into a mostly hydrocarbon component and a mostly water component in place downhole and reinjecting into the other of said strata the mostly water component by use of the combination production/injection well.