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. 08, 2020

Filed:

Nov. 16, 2017
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Bertrand du Castel, Austin, TX (US);

Christoph Klieber, Clamart, FR;

David Linton Johnson, Somerville, MA (US);

Martin G. Lüling, Clamart, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/46 (2006.01); G01V 1/50 (2006.01); G01V 1/053 (2006.01);
U.S. Cl.
CPC ...
G01V 1/46 (2013.01); G01V 1/50 (2013.01); G01V 1/053 (2013.01); G01V 2210/1295 (2013.01); G01V 2210/1299 (2013.01); G01V 2210/1425 (2013.01); G01V 2210/1429 (2013.01); G01V 2210/679 (2013.01);
Abstract

A downhole tool system may include a Stoneley wave emitter, located in a downhole tool, designed to emit Stoneley waves into a borehole. The downhole tool system may include one or more Stoneley wave sensors, located in the downhole tool, and a processor. The processor may be designed to receive signals from the one or more Stoneley wave sensors based on the detection of the Stoneley waves. The processor may use the signals to obtain a temporal measurement of the Stoneley waves. Based at least in part on the temporal measurement, the processor may calculate a distance from the downhole tool or a bottom-hole assembly to the bottom of the borehole.


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