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, 2015

Filed:

Feb. 21, 2012
Applicants:

Sunil Kumar, Celle, DE;

Hendrik John, Celle, DE;

Harald Grimmer, Lachendorf Niedersachsen, DE;

Thomas Kruspe, Wietzendorf Niedersachsen, DE;

Andreas Peter, Celle Niedersachsen, DE;

Michael Koppe, Lachendorf, DE;

Inventors:

Sunil Kumar, Celle, DE;

Hendrik John, Celle, DE;

Harald Grimmer, Lachendorf Niedersachsen, DE;

Thomas Kruspe, Wietzendorf Niedersachsen, DE;

Andreas Peter, Celle Niedersachsen, DE;

Michael Koppe, Lachendorf, DE;

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/00 (2006.01); E21B 47/00 (2012.01); E21B 47/01 (2012.01);
U.S. Cl.
CPC ...
E21B 47/0006 (2013.01); E21B 47/011 (2013.01);
Abstract

An apparatus for measuring strain on a downhole component includes: at least one strain sensitive device disposed proximate to a surface of a component of a drilling assembly or disposed within a material forming the component; and a processor in operable communication with the at least one strain sensitive device, the processor configured to detect changes in the at least one strain sensitive device and detect at least one of erosion, crack formation and crack propagation in the component surface. An apparatus for measuring strain on a downhole component includes: at least one strain gauge deposited on a surface of a drive shaft or disposed within a material forming the drive shaft; and a processor in operable communication with the at least one strain gauge, the processor configured to detect changes in the at least one strain gauge and detect conditions affecting operation of the drive shaft.


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