Construction simulation of large-spacing-two-well salt cavern with gas blanket and stability evaluation of cavern for gas storage

2022 ◽  
Vol 48 ◽  
pp. 103932
Author(s):  
Deyi Jiang ◽  
Yifan Wang ◽  
Wei Liu ◽  
Lin Li ◽  
Weibiao Qiao ◽  
...  
Keyword(s):  
Gas Storage ◽  
Construction Simulation ◽  
Stability Evaluation ◽  
Salt Cavern

scholarly journals Numerical Investigation on Shape Optimization of Small-Spacing Twin-Well for Salt Cavern Gas Storage in Ultra-Deep Formation

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2859
Author(s):  
Haitao Li ◽  
Jingen Deng ◽  
Qiqi Wanyan ◽  
Yongcun Feng ◽  
Arnaud Regis Kamgue Lenwoue ◽  
...  
Keyword(s):  
Safety Evaluation ◽  
Gas Storage ◽  
Gas Pressure ◽  
Salt Cavern ◽  
Well Spacing ◽  
3D Geomechanical Model ◽  
The Stability ◽  
Bedded Rock Salt ◽  
Salt Cavern Gas Storage ◽  
Small Spacing

Small-spacing twin-well (SSTW) salt caverns have an extensive application prospect in thin or bedded rock salt formations due to their good performance, while they are rarely used in ultra-deep formations. The target strata depth of Pingdingshan salt mine is over 1700 m, and it is planned to apply an SSTW cavern to construct the underground gas storage (UGS). A 3D geomechanical model considering the viscoelastic plasticity of the rock mass is introduced into Flac3D to numerically study the influence of internal gas pressure, cavern upper shape and well spacing on the stability of an SSTW salt cavern for Pingdingshan UGS. A set of assessment indices is summarized for the stability of gas storage. The results show that the minimum internal gas pressure is no less than 14 MPa, and the cavern should not be operated under constant low gas pressure for a long time. The cavern with an upper height of 70 m is recommended for Pingdingshan gas storage based on the safety evaluation and maximum volume. The well spacing has a limited influence on the stability of the salt cavern in view of the volume shrinkage and safety factor. Among the values of 10 m, 20 m and 30 m, the well spacing of 20 m is recommended for Pingdingshan gas storage. In addition, when the cavern groups are constructed, the pillar width on the short axis should be larger than that on the long axis due to its greater deformation in this direction. This study provides a design reference for the construction of salt cavern gas storage in ultra-deep formations with the technology of SSTW.

Parameter optimization of solution mining under nitrogen for the construction of a gas storage salt cavern

2021 ◽  
pp. 103954
Author(s):  
Jianfu Wang ◽  
Guoyin An ◽  
Baodong Shan ◽  
Wenquan Wang ◽  
Jianchao Jia ◽  
...  
Keyword(s):  
Parameter Optimization ◽  
Gas Storage ◽  
Salt Cavern ◽  
Solution Mining

Prediction method for calculating the porosity of insoluble sediments for salt cavern gas storage applications

Energy ◽  
2021 ◽  
Vol 221 ◽  
pp. 119815
Author(s):  
Peng Li ◽  
Yinping Li ◽  
Xilin Shi ◽  
Kai Zhao ◽  
Xin Liu ◽  
...  
Keyword(s):  
Prediction Method ◽  
Gas Storage ◽  
Salt Cavern ◽  
Salt Cavern Gas Storage

Tightness and stability evaluation of salt cavern underground storage with a new fluid–solid coupling seepage model

2021 ◽  
Vol 202 ◽  
pp. 108475
Author(s):  
Xiangsheng Chen ◽  
Yinping Li ◽  
Yufeng Shi ◽  
Yang Yu ◽  
Yalong Jiang ◽  
...  
Keyword(s):  
Underground Storage ◽  
Stability Evaluation ◽  
Salt Cavern ◽  
Seepage Model

Dynamic response of underground gas storage salt cavern under seismic loads

2014 ◽  
Vol 43 ◽  
pp. 241-252 ◽  
Author(s):  
Tongtao Wang ◽  
Chunhe Yang ◽  
Xiangzhen Yan ◽  
Yinping Li ◽  
Wei Liu ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Gas Storage ◽  
Seismic Loads ◽  
Underground Gas Storage ◽  
Salt Cavern

Research on Tubing and Casing Anti-Bending Technology for Salt Cavern Gas Storage Cavity Construction

2020 ◽  
Author(s):  
Xueqi Cen ◽  
Hao Zeng ◽  
Haibo Wang ◽  
Xiao Huang ◽  
Rusheng Zhang ◽  
...  
Keyword(s):  
Gas Storage ◽  
Salt Cavern ◽  
Salt Cavern Gas Storage
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