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. 06, 1981
Filed:
Jun. 07, 1979
John L Fitch, Dallas, TX (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
Disclosed is a method of producing viscous hydrocarbons from a viscous petroleum-containing subsurface formation. At least an injection well and a production well are provided to extend from the surface of the earth into the subsurface formations. A high mobility, brine-filled channel is established through the lower portion of the subsurface formation to communicate with the injection and production well. After the high mobility channel is established, a solvent for the petroleum is injected into the high mobility channel. The injection of the solvent is continued until breakthrough of the solvent at the production well and thereafter until the ratio of petroleum to solvent produced from the production well becomes unfavorable. Thereafter, gas is injected into the high mobility channel to displace the solvent and petroleum from the formation to the production well.