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:
Oct. 15, 2019
Filed:
Apr. 14, 2017
Optasense Holdings Limited, Farnborough, Hampshire, GB;
William Bartling, Farnborough, GB;
Alastair Godfrey, Farnborough, GB;
Optasense Holdings Limited, , GB;
Abstract
This application relates to methods and apparatus for monitoring a geological formation that is or has been subjected to steam injection using a distributed fiber optic sensor apparatus to perform distributed fiber optic sensing on an optical fiber deployed in a borehole running through the geological formation to acquire a first set of measurement signals being indicative of disturbances acting on each of a plurality of longitudinal sensing portions of the first optical fiber where at least part of the optical fiber is disposed adjacent to at least a first electrode spaced apart from a second electrode and the first and second electrode are separated by a void that is filled with a gas and an electrical source applies a potential difference to the first and second electrodes such that an ionization event within the gas results in an avalanche multiplication.