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, 2005
Filed:
Mar. 15, 2004
Applicants:
Svein Ellingsrud, Trondheim, NO;
Terje Eidesmo, Ranheim, NO;
Harald Westerdahl, Dal, NO;
Fan-nian Kong, Oslo, NO;
Inventors:
Svein Ellingsrud, Trondheim, NO;
Terje Eidesmo, Ranheim, NO;
Harald Westerdahl, Dal, NO;
Fan-Nian Kong, Oslo, NO;
Assignee:
Statoil ASA, Stavanger, NO;
Primary Examiner:
Int. Cl.
CPC ...
G01V003/08 ;
U.S. Cl.
CPC ...
Abstract
A system for investigating subterranean strata. An electromagnetic field is applied using a dipole antenna transmitter and this is detected using a dipole antenna receiver. Phase information is extracted from a refracted wave response and used to identify the presence and/or nature of a subterranean reservoir.
Ellingsrud, Svein. (2005). Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves (U.S. Patent No. 6900639). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6900639
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