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:
Aug. 11, 2015

Filed:

Nov. 17, 2014
Applicants:

Manuel E. Gonzalez, Kingwood, TX (US);

Melvin Clark Thompson, Los Alamos, NM (US);

Robert Louis Williford, Los Alamos, NM (US);

David William Beck, Santa Fe, NM (US);

Inventors:

Manuel E. Gonzalez, Kingwood, TX (US);

Melvin Clark Thompson, Los Alamos, NM (US);

Robert Louis Williford, Los Alamos, NM (US);

David William Beck, Santa Fe, NM (US);

Assignee:

CHEVRON U.S.A. INC., San Ramon, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2012.01); E21B 47/06 (2012.01);
U.S. Cl.
CPC ...
E21B 47/12 (2013.01); E21B 47/06 (2013.01); E21B 47/122 (2013.01);
Abstract

A system, method and device may be used to monitor conditions in a borehole. Well tubing and casing act as a conductive pair for delivering power to one or more downhole active sensors. At the surface, power and signal are isolated so that the same conductive pair may act to transmit the sensor signals to the surface. In an embodiment, the sensor signals are RF signals and the surface electronics demodulate the RF signals from the sensor power.


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