A novel mode for “three zones” collaborative reconstruction of underground gas storage and its application to large, low-permeability lithologic gas reservoirs

Jieming Wang, Jinkai Wang, Shujuan Xu, Rui Wu, Jian Lv, Zhi Li, Chun Li, Jinliang Zhang, Lei Zhao, Jun Xie and Jianguo Zhang

Energy, 2022, vol. 253, issue C

Abstract: The difficult of reconstruction area selection, the unclear closed boundary and the low injection-production efficiency are the main problems restricting the gas storage reconstruction in large-scale low-permeability lithologic gas reservoir. In view of this, this paper proposes a new ‘three zones' cooperative building model which can provide a comprehensive selecting standard, delimit a stable closed boundary and optimize an efficient operation mode for the successful reconstruction of gas storage in this type of gas reservoir. Its application will create a precedent for the gas storage reconstruction in low-permeability gas reservoir and bring huge economic benefits. First, the multi-parameter comprehensive index evaluation rule of the reservoir under the constraint of “five facies” is established, and the overflow mode and volume of gas in the core area are calculated to define the reasonable range of the ‘three zones'. Subsequently, a mathematical model of fluid exchange between different zones under the new model is established to simulate and predict the dynamic indexes and fluid migration law in different zones. Finally, the operation safety of the gas storage is evaluated, and the applicability and advantage of the new model is confirmed.

Keywords: Ordos Basin; Yulin gas field; Low permeability; Underground gas storage; Flow unit; Numerical simulation (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:253:y:2022:i:c:s0360544222010519

DOI: 10.1016/j.energy.2022.124148

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