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. 29, 2003
Filed:
Dec. 04, 2000
Applicant:
Inventors:
Hugh R Clayton, Canterbury, GB;
Neil I Douglas, Clevedon, GB;
Assignee:
ABB Offshore Systems Limited, Bristol, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/16 ;
U.S. Cl.
CPC ...
H01J 5/16 ;
Abstract
An apparatus for sensing strain applied to a region of a hydrocarbon well comprises an optical fiber in communication with the region. The optical fiber is responsive to strain applied to the region and to a light signal transmitted through it, in order to produce a sensing light signal incorporating scattered light. A characteristic of the scattered light is indicative of the strain being applied to the region.