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.
Patent No.:
Date of Patent:
Feb. 19, 2019
Filed:
Oct. 22, 2014
Applicant:
William Johnston, Blacksburg, VA (US);
Inventor:
William Johnston, Blacksburg, VA (US);
Assignee:
BAKER HUGHES, A GE COMPANY, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2012.01); E21B 47/14 (2006.01); G01K 11/32 (2006.01); E21B 47/06 (2012.01); G01K 11/22 (2006.01);
U.S. Cl.
CPC ...
E21B 47/065 (2013.01); E21B 47/123 (2013.01); E21B 47/14 (2013.01); G01K 11/22 (2013.01); G01K 11/32 (2013.01);
Abstract
An embodiment of a method of measuring temperatures includes: taking distributed acoustic sensing (DAS) measurement data by transmitting interrogation signals into an optical fiber disposed in an environment of interest, and receiving reflected signals over a selected time period from the optical fiber; processing the DAS measurement data to separate components of the DAS data associated with changes in temperature; and generating a temperature change profile for the selected time period based on the separated components of the DAS data.