Petroleum Reservoir Evaluation and Development >
2022 , Vol. 12 >Issue 6: 859 - 868
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2022.06.004
Ground temperature response and thermal effect radius of heat transfer of deep buried pipe
Received date: 2022-06-17
Online published: 2022-12-02
In order to analyze the ground temperature response and thermal effect radius of the heat transfer of the deep buried pipe, a full-scale numerical model of buried pipe heat transfer is established based on the well logging temperature, ground lithology interpretation, and field heat transfer experiments of an actual deep-buried pipe heating project in Xi’an. By the numerical analysis of the heat transfer of the buried pipes in five years, namely five heating periods and four recovery periods, the variation of ground temperature fluctuation （ΔT） around the buried pipe at different depths with running time is summarized. On this basis, by considering the theoretical research and engineering application, three different ΔT limits are selected to determine the thermal effect radius, and the factors affecting the thermal effect radius are analyzed. The results show that when ΔT limit is small enough to close to zero, the thermal effect radius is mainly affected by the geotechnical parameters around the buried pipe, and when ΔT limit increases, the thermal effect radius is mainly affected by ΔT limit.
Chao LI , Chao JIANG , Yanling GUAN , Congcong ZONG , Hua QU , Qiaolan WU . Ground temperature response and thermal effect radius of heat transfer of deep buried pipe[J]. Petroleum Reservoir Evaluation and Development, 2022 , 12(6) : 859 -868 . DOI: 10.13809/j.cnki.cn32-1825/te.2022.06.004
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