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:
Aug. 17, 2021
Filed:
Dec. 19, 2016
Optasense Holdings Limited, Farnborough, GB;
Kevin Boone, Farnborough, GB;
OPTASENSE HOLDINGS LIMITED, Hampshire, GB;
Abstract
This application relates to method and apparatus for determining properties of a wellbore (). The method involves attaching part of a sensing optical fibre () of a fibre optic cable () to a well casing () and inserting the well casing into the wellbore (). The sensing fibre optic is connected to an interrogator unit () and distributed fibre optic sensing is performed on the sensing optical fibre as the well casing is being inserted into the wellbore to provide a measurement signal from each of a plurality of sensing portions of said sensing optical fibre. The measurement signal is indicative of disturbances affecting the sensing portions. A processor () analyses the measurement signals from sensing portions of the sensing optical fibre that has been inserted into the wellbore to determine wellbore properties.