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:
May. 07, 2019

Filed:

Dec. 05, 2014
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Paul F. Rodney, Spring, TX (US);

Paul Andrew Cooper, Humble, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2012.01); G01V 1/26 (2006.01); E21B 47/00 (2012.01); E21B 47/01 (2012.01); G04D 7/00 (2006.01); H03B 5/02 (2006.01); H03B 5/32 (2006.01);
U.S. Cl.
CPC ...
E21B 47/12 (2013.01); E21B 47/00 (2013.01); E21B 47/01 (2013.01); G01V 1/26 (2013.01); G04D 7/003 (2013.01); H03B 5/02 (2013.01); G01V 2200/12 (2013.01); H03B 5/32 (2013.01);
Abstract

In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive a derived clock signal downhole, the derived clock signal being derived from a surface clock signal (associated with a surface clock), such that the frequency of the derived clock signal is less than the frequency of the surface clock signal. Further activity may include measuring the frequency of the derived clock signal in terms of an uncorrected downhole clock frequency (associated with a downhole clock) to provide a measured frequency equivalent, and correcting time measurements made using the downhole clock, based on the measured frequency equivalent, or based on an actual frequency of the downhole clock determined according to the measured frequency equivalent. Additional apparatus, systems, and methods are described.


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