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.

Date of Patent:
Jun. 06, 2017

Filed:

Mar. 06, 2015
Applicant:

Schlumberger Technology Corporation, Sugar land, TX (US);

Inventor:

Andrew J. Hayman, Voisins-le-Bretonneux, FR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/20 (2006.01); E21B 47/08 (2012.01); G01V 3/24 (2006.01);
U.S. Cl.
CPC ...
G01V 3/20 (2013.01); E21B 47/082 (2013.01); G01V 3/24 (2013.01);
Abstract

The disclosure is concerned with a tool and method for imaging a formation through a substantially non-conductive medium. The tool includes one or more injection electrodes for injecting current through the substantially non-conductive medium and into the formation. The tool further includes one or more return electrodes for receiving current from the substantially non-conductive medium, the formation, or both. The tool also includes circuitry for determining a complex impedance based on the received current, determining a phase angle of the complex impedance, and determining a component of the complex impedance that is orthogonal to the phase angle.


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