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:
Jan. 13, 1987
Filed:
Jan. 03, 1986
Applicant:
Inventor:
Ju-Nam Chew, Dallas, TX (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166245 ; 166263 ; 166271 ; 166272 ;
Abstract
This invention is a method for recovering viscous hydrocarbonaceous fluids from a subterranean formation containing one or more vertically extensive, narrow, high permeability conduits. At least one injection well communicates with at least one production well via said conduits. Steam is injected into said injection well until the water-oil ratio becomes excessive at the production well. The production well is then shut in until the formation is pressurized. Stem injection is then stopped and the production well is opened for production by pressure depletion. This cycle is repeated until oil recovery becomes uneconomical.