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:
Jul. 24, 1984
Filed:
Dec. 16, 1981
William C Hunt, III, Farmers Branch, TX (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
A method for the recovery of viscous crude oil from a subterranean, viscous crude oil-containing formation penetrated by an injection well and a spaced-apart production well wherein produced crude oil recovered from the production well is subjected to a visbreaking operation to produce a hot visbroken crude oil solvent reduced in viscosity and injecting the hot visbroken crude oil solvent into the formation via the injection well to reduce the viscosity of oil remaining in the oil formation and thereby enhance recovery of oil from the formation. A predetermined amount or slug of the hot visbroken crude oil solvent may be injected into the formation followed by injection of another fluid such as a gas or an aqueous fluid to drive the hot solvent and the oil through the formation toward the production well for recovery of fluids including oil.