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. 25, 1993
Filed:
Jul. 24, 1991
Applicant:
Inventors:
Eve S Sprunt, Farmers Branch, TX (US);
Nizar F Djabbarah, Richardson, TX (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
324351 ; 73155 ; 166252 ; 166272 ; 324325 ; 324353 ;
Abstract
A method for time lapse electric logging in a cased hole in which electrodes are implanted in the casing or the hole is completed with a gravel packed non conductive, perforated liner that allows an open hole logging tool to be used for time-lapse logging. Thereafter, the implemented electrodes or a self-potential (SP) logging tool are used to monitor a steam-flooding EOR method by detecting two-phase flow with time lapse logging. A potential drop between the surface and zones of interest is measured with electrodes installed in a non-conductive casing or the SP logging tool.