安全与环境工程2025，Vol.32Issue(4)：43-56,14.DOI:10.13578/j.cnki.issn.1671-1556.20241056
基于响应面分析的热流固耦合盐穴储气库泄漏率影响因素
Key factors of leakage rate in THM coupled salt cavern gas storage based on response surface analysis
摘要
Abstract
Salt cavern gas storage is an energy storage facility that uses salt rock formations as storage media to store gases such as air and natural gas.The creep deformation of the surrounding rock during the use of salt caverns can cause changes in permeability coefficient,affecting the safety and sealing of gas storage facilities,increasing the risk of gas leakage,and seriously threatening public safety.In consideration of the interaction of temperature field,seepage field and stress field,based on Darcy's law,combined with the pore permeability variation equation and the creep constitutive model,the thermo-hydraulic-mechanical(THM)three field coupling equation for the seepage of salt cavern surrounding rock seepage was derived.On this basis,a numerical model of salt cavern gas storage was established,and the effects of single factor changes and multi factor interactions on the leakage rate of salt cavern gas storage were quantified through data simulation and response surface analysis.The results are as follows:①Increase in minimum working pressure and lower temperature have a suppressing effect on the deformation of the salt chamber,while increase in maximum working pressure and reduction in chamber burial depth increase the risk of gas leakage;② The interaction between minimum working pressure,maximum working pressure,and chamber burial depth has the most significant impact on leakage rate,and shows strong synergistic effect.关键词
盐穴储气库/气体泄漏/围岩渗透率/热流固耦合模型/响应面分析/数值模拟Key words
salt cavern gas storage/gas leakage/surrounding rock permeability/thermo-hydraulic-mechanical(THM)coupling model/response surface analysis/numerical simulation分类
资源环境引用本文复制引用
史永飞,文沛然,张俊飞,杨帆,范金洋,姜德义..基于响应面分析的热流固耦合盐穴储气库泄漏率影响因素[J].安全与环境工程,2025,32(4):43-56,14.基金项目
国家自然科学基金项目(52274073) （52274073）
