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:
May. 31, 1977
Filed:
Aug. 12, 1976
Applicant:
Inventor:
Gary Drinkard, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166272 ; 166261 ;
Abstract
Shale oil can be produced from a naturally fractured and leached subterranean oil shale formation by reacting the formation components with a hot aqueous alkaline liquid to form and distribute clay-like materials which can be water-swollen to form a flow barrier along or around a selected portion of the oil shale formation. Such flow barriers can guide or confine fluids that are injected and produced to recover shale oil.