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:
Dec. 02, 2014

Filed:

Dec. 03, 2007
Applicants:

Dmitriy Dashevskiy, Nienhagen, DE;

Patrick J. Mcginley, Sugar Land, TX (US);

John D. Macpherson, Sugar Land, TX (US);

Andrew G. Brooks, Tomball, TX (US);

Thomas G. Dahl, Schwuelper, DE;

Mitchell G. Pinnell, Montgomery, TX (US);

Paul Gerard Cairns, Houston, TX (US);

Robin F. Randall, Spring, TX (US);

Mark Andrew Hill, Houston, TX (US);

Edward W. Robnett, Kingwood, TX (US);

Inventors:

Dmitriy Dashevskiy, Nienhagen, DE;

Patrick J. McGinley, Sugar Land, TX (US);

John D. Macpherson, Sugar Land, TX (US);

Andrew G. Brooks, Tomball, TX (US);

Thomas G. Dahl, Schwuelper, DE;

Mitchell G. Pinnell, Montgomery, TX (US);

Paul Gerard Cairns, Houston, TX (US);

Robin F. Randall, Spring, TX (US);

Mark Andrew Hill, Houston, TX (US);

Edward W. Robnett, Kingwood, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/40 (2006.01); G01V 11/00 (2006.01); E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
E21B 47/00 (2013.01); G01V 11/002 (2013.01); G01V 2200/12 (2013.01);
Abstract

The disclosure provides a method which includes transmitting signals over a time period between a downhole location and a surface location during drilling of a wellbore; recording the time of each signal at the surface using a surface clock and the time of each signal downhole using a downhole clock; and correcting the downhole measurements using the recorded times.


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