Distributed fiber analyzer and its application in production profiling analysis

Chun Tao Song; Shuai Guan; Yuehua Chen; Zhihua Ge; Guobing Wang; Jieqiong Liu

doi:10.1117/12.2588527

18 March 2021 Distributed fiber analyzer and its application in production profiling analysis

Chun Tao Song, Shuai Guan, Yuehua Chen, Zhihua Ge, Guobing Wang, Jieqiong Liu

Proceedings Volume 11780, Global Intelligent Industry Conference 2020; 1178003 (2021) https://doi.org/10.1117/12.2588527
Event: Global Intelligent Industry Conference 2020, 2020, Guangzhou, China

Abstract

Raman backscattering happens when a laser pulse is launched and travels along the optic fiber from which the temperature can be calculated along the fiber based on OTDR technology. Wellbore temperature data under different working schemes can be obtained with the fiber optic run into well via different methods, enabling the temperature anomaly construction between the geothermal temperature and the flowing wellbore temperature. Wellbore temperature anomaly is a function of the production profile which can be obtained using a wellbore enthalpy model in combination with single well geology, fluid PVT data, fluid thermal properties and well structure data etc. DFA interpretation is performed for Well XX indicating the main contributing layers are between 10279ft and 10350ft with production intensity lying between 5000m³/(d∙m) and 10⁴m³/(d∙m). Layer A₂ and layerA₆ are the main layers with low reserve utilization. Comparison between PLT analysis and DFA interpretation shows a high coherence with a higher interpretation accuracy provided by DFA interpretation.

Citation Download Citation

Chun Tao Song, Shuai Guan, Yuehua Chen, Zhihua Ge, Guobing Wang, and Jieqiong Liu "Distributed fiber analyzer and its application in production profiling analysis", Proc. SPIE 11780, Global Intelligent Industry Conference 2020, 1178003 (18 March 2021); https://doi.org/10.1117/12.2588527

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