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:
Nov. 07, 2023
Filed:
Jun. 09, 2021
Saudi Arabian Oil Company, Dhahran, SA;
Hassan Ali Al-Hashmy, Dhahran, SA;
Christian Canto Maya, Dhahran, SA;
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Abstract
An in situ leakage detection system for protecting and monitoring buried non-metallic pipelines is provided. The system includes flexible composite mats arranged below and above the pipeline. Sensors, including, distributed optical fiber sensors (DOFS) are affixed to the pipe-facing mat surfaces and extend lengthwise along the pipeline. An optical time domain reflectometry (OTDR) reading unit is configured to provide optical signals to the DOFS and analyze the returned optical signal. The OTDR unit can measure frequency and amplitude of anti-Stoke components of Raman scattering signals and a time-distance of the signals to detect localized changes in temperature along the pipeline. The system is further configured to detect leaks and determine a location of the leaks from the foregoing temperature changes and time-distance information. A method of installing and operating an in situ leakage detection system is also provided.