摘要
通过建立江汉盆地新沟油田新沟嘴组储盖层的二维模型,对新沟油田进行了CO2地质封存数值模拟,研究了盖层厚度减薄、盖层不均一、盖层不连续等盖层不确定性对注入的CO2在储盖层中运移分布和溶解扩散的影响,并计算了不同情况下CO2的逃逸率。结果表明:盖层厚度减薄和盖层不连续对CO2地质封存的安全性影响较大,而盖层不均一对其影响相对较小。
This paper researches the numerical simulation of CO2 geological storage in Xingou Oil Field through establishing the 2D model of its reservoirs and caprocks in Xingouzui Group, analyzes the impact of the uncertainties （decrease of thickness, heterogeneity and discontinuity） of caprocks on the migration, dis solution and diffusion of injected CO2, and calculates the escape ratio of CO2 in different conditions. The simulation results show that the decrease of caprock thickness and the discontinuity of caprock exert a great influence on the security of CO2 geological storage and the heterogeneity of caprock exerts a relatively small influence on the security of CO2 geological storage.
出处
《安全与环境工程》
CAS
北大核心
2013年第4期45-50,共6页
Safety and Environmental Engineering
基金
国家自然科学基金项目(41072180)
