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:
Sep. 10, 2019

Filed:

Mar. 10, 2014
Applicant:

Baker Hughes Oilfield Operations Llc, Houston, TX (US);

Inventors:

Paul Camwell, Calgary, CA;

Douglas S. Drumheller, Cedar Crest, NM (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2012.01); E21B 47/16 (2006.01); E21B 47/18 (2012.01); G01V 11/00 (2006.01); G10K 11/16 (2006.01); G01V 1/52 (2006.01);
U.S. Cl.
CPC ...
E21B 47/16 (2013.01); E21B 47/18 (2013.01); E21B 47/182 (2013.01); G01V 1/523 (2013.01); G01V 11/002 (2013.01); G10K 11/16 (2013.01);
Abstract

An acoustic receiver for use on a drill string includes a housing attachable to the drill string; a first sensor mounted within the housing for measuring a first parameter at a first location on the drill string and for generating a first parameter signal representative of the first parameter; a second sensor mounted within the housing for measuring a second parameter at a second location on the drill string and for generating a second parameter signal representative of the second parameter; and a controller mounted within the housing and communicatively coupled to the first and second sensors. The magnitudes of the first and second parameters vary in proportion to magnitude of the acoustic wave and the first and second parameters have a quadrature phase relationship. The controller is configured to combine the first and second parameter signals to determine the magnitude of the acoustic wave.


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