Leakage Monitoring and Quantitative Prediction Model of Injection–Production String in an Underground Gas Storage Salt Cavern

Tingting Jiang, Dongling Cao (), Youqiang Liao, Dongzhou Xie, Tao He and Chaoyang Zhang
Additional contact information
Tingting Jiang: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Dongling Cao: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Youqiang Liao: Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
Dongzhou Xie: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Tao He: Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
Chaoyang Zhang: PetroChina Engineering Construction Co., Ltd., North China Branch, Cangzhou 062552, China

Energies, 2023, vol. 16, issue 17, 1-16

Abstract: The leakage of the injection–production string is one of the important hidden dangers for the safe and efficient operation of underground salt cavern gas storage. Although distributed fiber optic temperature measurement system (DTS) can accurately locate the position of the string leakage port, how to establish the quantitative relationship between the temperature difference and leakage rate of the leakage port still needs further exploration. This paper proposes a new quantitative prediction model based on a DTS for the leakage monitoring of the injection–production string of salt cavern gas storage. The model takes into account the gas’s physical parameters, unstable temperature conditions, and the Joule–Thomson effect. In order to verify the accuracy of the model, a simulation experiment of string leakage based on a DTS was carried out. The test results show that the relative deviation between the predicted leakage rate and the measured value is less than 5% compared with the calculated value. When the leakage rate drops to 0.16 m 3 /h and the temperature range is less than 0.5 °C, it is difficult to accurately monitor the DTS. The results of this study help to improve the early warning time of underground salt cavern gas storage string leakage.

Keywords: salt cavern gas storage; string leakage; temperature field; leakage rate; Joule–Thomson effect (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/17/6173/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/17/6173/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:17:p:6173-:d:1224948

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().