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:
Jun. 27, 2017
Filed:
Aug. 03, 2015
Applicant:
Optasense Holdings Limited, Farnborough, Hampshire, GB;
Inventors:
Assignee:
Optasense Holdings Limited, , GB;
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/50 (2006.01); E21B 47/00 (2012.01); E21B 47/16 (2006.01); E21B 43/1185 (2006.01); E21B 43/26 (2006.01); E21B 47/10 (2012.01); E21B 47/12 (2012.01); G01H 9/00 (2006.01);
U.S. Cl.
CPC ...
E21B 47/16 (2013.01); E21B 43/11857 (2013.01); E21B 43/26 (2013.01); E21B 47/101 (2013.01); E21B 47/123 (2013.01); G01V 1/50 (2013.01); G01H 9/004 (2013.01); G01V 2210/1429 (2013.01); G01V 2210/646 (2013.01);
Abstract
Methods and apparatus for downhole monitoring are provided by interrogating an unmodified optic fiber () arranged along the path of a well bore () to provide a distributed acoustic sensor and sampling data gathered from a plurality of contiguous sensing portions of the fiber. The sampled data is processed to determine one or more well bore parameters. The well bore parameters may comprise a well condition profile, and may be obtained in response to an acoustic stimulus.