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. 16, 2009

Filed:

Nov. 30, 2004
Applicants:

Michael Rawle, Springville, UT (US);

David B. Bartholomew, Springville, UT (US);

Marshall A. Soares, Taylorsville, UT (US);

Inventors:

Michael Rawle, Springville, UT (US);

David B. Bartholomew, Springville, UT (US);

Marshall A. Soares, Taylorsville, UT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/11 (2006.01); G01R 27/04 (2006.01); G01R 27/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for identifying properties of a downhole electromagnetic network in a downhole tool sting, including the step of providing an electromagnetic path intermediate a first location and a second location on the electromagnetic network. The method further includes the step of providing a receiver at the second location. The receiver includes a known reference. The analog signal includes a set amplitude, a set range of frequencies, and a set rate of change between the frequencies. The method further includes the steps of sending the analog signal, and passively modifying the signal. The analog signal is sent from the first location through the electromagnetic path, and the signal is modified by the properties of the electromagnetic path. The method further includes the step of receiving a modified signal at the second location and comparing the known reference to the modified signal.


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