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:
Dec. 02, 2025
Filed:
Aug. 13, 2021
Well-sense Technology Limited, Aberdeen, GB;
Daniel George Purkis, Dyce, GB;
Well-Sense Technology Limited, Dyce, GB;
Abstract
A method, system and device for range finding are provided. The methodcomprises determininga first optical signature of a spool of optical fibrewound in a winding pattern. The winding pattern comprises repeated changes in a winding parameter to provide a different optical response such that the first optical signature comprises a plurality of markers representing each change in the winding parameter. The methodfurther comprises despooling the fibrefrom the spool; determining a second optical signature of the spool of optical fibreafter despooling the fibrefrom the spool; and calculatingthe length of despooled fibre based on a comparison of the first and the second optical signatures. The determined length may be used to determine a range of the spool of optical fibredeployed in a wellbore.