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. 24, 1998
Filed:
May. 03, 1996
Patrick L McGuire, Eagle River, AK (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
A method for recovering oil from a gravity drainage oil-bearing formation from which at least a major portion of the oil in place has been recovered through at least one production well penetrating the formation from the surface, the method comprising injecting an oil miscible solvent having a density slightly greater than a gas contained in a gas cap above the oil liquid level in the formation through a production well completed to inject the oil miscible solvent into an upper portion of the formation for a period of time equal to at least one week; recompleting the well for the production of oil from a lower portion of the formation; and producing oil through the well from the lower portion of the formation.