发明名称 Pipeline integrity monitoring using fiber optics
摘要 In some examples of monitoring pipeline integrity using fiber optics, a first set of values that represent an attenuation of a light signal transmitted through an optical fiber positioned adjacent a pipeline to carry fluids and a second set of values that represent a dispersion of the light signal transmitted through the optical fiber are received. An attenuation profile of the light signal and a dispersion profile of the light signal through the optical fiber are generated based on the first and second sets of values, respectively. Using the profiles, a light-based profile signature describing an environment surrounding the optical fiber is generated, and compared with a baseline light-based profile signature describing an environment surrounding the optical fiber under a normal operating condition. A notification describing an operation of the pipeline is provided in response to the comparing.
申请公布号 US9581490(B2) 申请公布日期 2017.02.28
申请号 US201414255343 申请日期 2014.04.17
申请人 Saudi Arabian Oil Company 发明人 Al-Walaie Soliman A.;Al-Saikhan Saleh M.
分类号 G01D5/32;G01H1/00;G01H9/00;G01N9/18;G01M3/04 主分类号 G01D5/32
代理机构 Fish & Richardson P.C. 代理人 Fish & Richardson P.C.
主权项 1. A method for monitoring a pipeline, the method comprising: receiving, by processing circuitry, a first set of values and a second set of values, the first set of values representing an attenuation of a light signal transmitted through an optical fiber positioned adjacent a pipeline to carry fluids, the second set of values representing a dispersion of the light signal transmitted through the optical fiber; generating, by the processing circuitry, an attenuation profile of the light signal through the optical fiber based on the first set of values, and a dispersion profile of the light signal through the optical fiber based on the second set of values, wherein generating the attenuation profile of the light signal comprises generating a three-dimensional plot of light signal attenuation, the three-dimensional plot including distance from a source of the light signal, light signal attenuation, and time of measurement on three axes of the three-dimensional plot, and wherein generating the dispersion profile of the light signal comprises generating a three-dimensional plot of light signal dispersion, the three-dimensional plot including wavelength of the light signal, dispersion, and time of measurement on three axes of the three-dimensional plot; generating, by the processing circuitry and using the attenuation profile and the dispersion profile, a light-based profile signature describing an environment surrounding the optical fiber; comparing, by the processing circuitry, the light-based profile signature describing the environment surrounding the optical fiber with a baseline light-based profile signature describing an environment surrounding the optical fiber under a normal operating condition; and providing, by the processing circuitry, a notification describing an operation of the pipeline in response to comparing the light-based profile signature and the baseline light-based profile signature.
地址 Dhahran SA