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. 14, 1983
Filed:
Nov. 12, 1980
Applicant:
Inventor:
Alfred D Hill, Littleton, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
1663 / ; 166269 ;
Abstract
A treating fluid is selectively injected into a portion of subterranean formation by creating a fluid interface within a well bore penetrating and communicating with the formation. The fluid interface is created by injecting preflush fluids of differing densities into the well bore, and is maintained at a vertical location within the well bore adjacent the portion of the subterranean formation to be treated while treating fluid is injected into the well bore.