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:
Sep. 25, 1984
Filed:
Dec. 27, 1982
Applicant:
Inventor:
Alfred D Hill, Austin, TX (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166252 ; 166 64 ;
Abstract
The fluid flow profile in an underground reservoir having a well borehole is determined by placing in the well borehole an instrument capable of detecting the velocity of an interface moving in the well borehole. The well is shut-in to allow oil and water to separate and form an interface. A fluid miscible with the oil and less dense than the water is injected into the well borehole and forces the interface to move down the well borehole. The fluid flow profile is determined by analyzing the data obtained from the instrument.