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Progress on real-time monitoring technology in oil and gas industry based with fiber Bragg grating sensing

SUN Yankun;LI Qi;LI Xiaying;YANG Duoxing;State Key Laboratory of Geomechanics and Geotechnical Engineering;Institute of Rock and Soil Mechanics,Chinese Academy of Sciences;Institute of Crustal Dynamics,China Earthquake Administration;  
FBG(fiber Bragg grating) has been used to develop a kind of high precision and real-time monitoring technology,which possesses some unique advantages of high temperature and high pressure endurance,resistance to electromagnetic interference,ease of reuse and networking,etc.Obviously,it is bound to become the most promising monitoring method in oil and gas field,including carbon geological utilization and storage,acid gas injection,and earthquake net-working.In this paper,a development history and working principle of FBG are presented firstly,and the latest application status of FBG sensors in pipeline integrity monitoring,logging,seismic exploration is analyzed.Then,some key issues on real-time monitoring under complex environment conditions are discussed,and finally,development and application trends are put forward.
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