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:
Jun. 28, 1988
Filed:
Jan. 18, 1982
Applicant:
Inventor:
Jack R Bohn, Rancho Palos Verdes, CA (US);
Assignee:
TRW Inc., Redondo Beach, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166267 ; 166272 ; 166278 ; 166303 ;
Abstract
A process for recovering petroleum from relatively impermeable formations. A permeable structure is formed to extend radially outward from the well bore and vapor, including solvent vapor, is introduced in a manner to condense primarily adjacent petroleum-containing portions of the formation, thereby forming a mixture of solvent and petroleum sufficiently mobile to flow downwardly and inwardly to a lower portion of the well bore leaving in place a leached volume of solids from which most of the petroleum has been removed.