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Proceedings Paper

Research on calibration method of downhole optical fiber temperature measurement and its application in SAGD well
Author(s): Zhiwei Lu; Li Han; Chengjun Hu; Yong Pan; Shengnan Duan; Ningbo Wang; Shijian Li; Maimaiti Nuer
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Paper Abstract

With the development of oil and gas fields, the accuracy and quantity requirements of real-time dynamic monitoring data needed for well dynamic analysis and regulation are increasing. Permanent, distributed downhole optical fiber temperature and pressure monitoring and other online real-time continuous data monitoring has become an important data acquisition and transmission technology in digital oil field and intelligent oil field construction. Considering the requirement of dynamic analysis of steam chamber developing state in SAGD horizontal wells in F oil reservoir in Xinjiang oilfield, it is necessary to carry out real-time and continuous temperature monitoring in horizontal section. Based on the study of the principle of optical fiber temperature measurement, the factors that cause the deviation of optical fiber temperature sensing are analyzed, and the method of fiber temperature calibration is proposed to solve the problem of temperature deviation. Field application in three wells showed that it could attain accurate measurement of downhole temperature by temperature correction. The real-time and continuous downhole distributed fiber temperature sensing technology has higher application value in the reservoir management of SAGD horizontal wells. It also has a reference for similar dynamic monitoring in reservoir production.

Paper Details

Date Published: 25 October 2017
PDF: 10 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104642I (25 October 2017); doi: 10.1117/12.2285688
Show Author Affiliations
Zhiwei Lu, Xinjiang Oilfield Co. (China)
Li Han, Xinjiang Oilfield Co. (China)
Chengjun Hu, Xinjiang Oilfield Co. (China)
Yong Pan, Xinjiang Oilfield Co. (China)
Shengnan Duan, Xinjiang Oilfield Co. (China)
Ningbo Wang, Xinjiang Oilfield Co. (China)
Shijian Li, Xinjiang Oilfield Co. (China)
Maimaiti Nuer, Xinjiang Oilfield Co. (China)

Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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