岩性圈闭型压缩气体地质储能场地适宜性评价方法及应用研究

Site suitability evaluation method and application of compressed gas geological energy storage in lithologic trap

针对目前岩性圈闭型压缩气体地质储能场地适宜性评价多基于静态因素,缺乏动态多因素的耦合分析,导致评估结果与实际工程应用存在较大差异这一问题,开展细化储能场地适宜性评价方法研究。通过考虑储气层储集性、储能安全性、实际操作性等方面,提出场地静态可行性分析与动态性能评估相结合的方法,并以胜利油田孤东辖区A2砂体为例开展应用研究。通过场地地质特征静态分析、GPSFLOW数值模拟软件定量评价以及现场先导性注气试验评估,结果显示A2砂体井口压力在注入标况空气9.4×10^(4)m^(3)结束后下降8.16%,显示密封性良好,符合储能空间要求。表明考虑储能系统动态性能的场地适宜性评价方法可为项目的选址和建设、储能效率的评价及优化提供更准确的数据支撑,有利于促进清洁能源利用与能源转型的可持续发展。

The current evaluation of the suitability of lithological trap-type compressed gas geological storage sites is mostly based on static factors.It lacks a coupled analysis of dynamic multiple factors,leading to a significant gap between the assessment results and actual engineering applications.To develop a refined method for evaluating the suitability of energy storage sites,an integrated approach that combines static feasibility analysis with dynamic performance assessment,considering key aspects such as reservoir properties,energy storage safety,and practical operability was proposed.The method was applied in the A2 geological formation of the Gudong Oilfield.Through the static analysis of site geological features,quantitative evaluation using GPSFLOW numerical simulation software,and on-site pilot gas injection tests,the results show that after injecting 9.4×10^(4) m^(3) of air,the pressure in the A2 geological formation decreases by 8.16%within 6 days.It indicates the good sealing performance meeting the requirements of energy storage space.Considering the dynamic performance of energy storage systems,the suitability evaluation method can provide more accurate data support for the site selection,construction,evaluation,and optimization of energy storage efficiency,further promoting sustainable development of clean energy utilization and energy transition.