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. 22, 2020
Filed:
Nov. 30, 2015
Halliburton Energy Services Inc., Houston, TX (US);
Andrew David Barfoot, Houston, TX (US);
Han-Sun Choi, Houston, TX (US);
Xinwei Lan, Houston, TX (US);
Halliburton Energy Services Inc., Houston, TX (US);
Abstract
An interrogation system may be coupled to a fiber-optic cable positioned in a wellbore to interrogate a plurality of optical sensors coupled to the fiber-optic cable. The interrogation system may include an optical frequency comb source having a plurality of narrowband optical carriers transmitting light to the plurality of optical sensors. Each of the plurality of optical sensors may include a pair of partial reflectors to reflect the light transmitted by the optical frequency comb to one or more optical receivers to receive the reflection signals In some aspects, the interrogation system may include a de-interleaver device for separating reflected light signals having adjacent wavelength into separate optical waveguides. In additional aspects, interrogation system may also include a data processing system having a processing device for performing interferometric measurements using the reflected light signals.