Fast Detection of the Single Point Leakage in Branched Shale Gas Gathering and Transportation Pipeline Network with Condensate Water

Xue Zhong, Zhixiang Dai, Wenyan Zhang, Qin Wang and Guoxi He ()
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Xue Zhong: Gathering and Transportation Engineering Technology Research Institute, Southwest Oil and Gas Field Company, Chengdu 610041, China
Zhixiang Dai: Gathering and Transportation Engineering Technology Research Institute, Southwest Oil and Gas Field Company, Chengdu 610041, China
Wenyan Zhang: Gathering and Transportation Engineering Technology Research Institute, Southwest Oil and Gas Field Company, Chengdu 610041, China
Qin Wang: College of Petroleum Engineering, Southwest Petroleum University, Chengdu 610500, China
Guoxi He: College of Petroleum Engineering, Southwest Petroleum University, Chengdu 610500, China

Energies, 2024, vol. 17, issue 11, 1-17

Abstract: The node pressure and flow rate along the shale gas flow process are analyzed according to the characteristics of the shale gas flow pipe network, and the non-leaking and leaking processes of the shale gas flow pipe network are modeled separately. The changes in pressure over time along each pipe segment in the network provide new ideas for identifying leaking pipe sections. This paper uses the logarithmic value of pressure as the basis for judging whether the flow pipe network is leaking or not, according to the process of varying flow parameters resulting in the regularity of leakage. A graph of the change in pressure of the pipe section after the leak compared to the pressure of the non-leaking section of pipe over time can be plotted, accurately identifying the specific section of pipe with the leak. The accuracy of this novel method is verified by the leakage section and statistical data of the shale gas pipeline network in situ used in this paper.

Keywords: dendritic shale gas-gathering pipeline network; gas–liquid two-phase flow; single-point leakage; pressure drop rate; fast leak detection (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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