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:
May. 24, 2011
Filed:
Nov. 02, 2007
Arthur H. Hartog, Winchester, GB;
J. Ernest Brown, Cambs, GB;
John Mervyn Cook, Cambridge, GB;
Jonathan Elphick, Cambridge, GB;
Paul S. Hammond, Bourn, GB;
Ashley Bernard Johnson, Milton, GB;
Arthur H. Hartog, Winchester, GB;
J. Ernest Brown, Cambs, GB;
John Mervyn Cook, Cambridge, GB;
Jonathan Elphick, Cambridge, GB;
Paul S. Hammond, Bourn, GB;
Ashley Bernard Johnson, Milton, GB;
Schlumberger Technology Corporation, Cambridge, MA (US);
Abstract
Acoustic monitoring of a conduit, a wellbore or a reservoir associated with hydrocarbon production or transportation and/or carbon dioxide sequestration is carried out using a fibre optic cable extending along or appurtenant to it as a distributed interferometer. Coherent Raleigh noise generated by the transmission of the coherent beam of radiation through the fiber optic is detected and processed to identify an acoustic occurrence.