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:
Apr. 07, 2015
Filed:
May. 24, 2011
Applicant:
Peter Hayward, Haslemere, GB;
Inventor:
Peter Hayward, Haslemere, GB;
Assignee:
Fotech Solutions Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/353 (2006.01); E21B 47/12 (2012.01); G01F 1/66 (2006.01);
U.S. Cl.
CPC ...
G01D 5/353 (2013.01); E21B 47/123 (2013.01); G01F 1/661 (2013.01); G01F 1/666 (2013.01);
Abstract
There are disclosed methods and apparatus for monitoring fluid flow along a conduit such as a well bore or a pipeline. A sensor optical fiber is disposed along the conduit, and an optical interrogator is used to launch probe light pulses into the fiber and to determine optical properties of probe light backscattered within the fiber, the properties being indicative of vibration as a function along the fiber. An analyzer is used to detect one or more vibration features moving along the conduit and to determine a measure of fluid flow based on the detected movement.