摘要
储气库库容量与工作气量是储气库建设的核心问题,工作气量与储气库运行压力、垫底气量及注采井数等相互制约。对于榆林气田低渗岩性气藏储气库建设,储气库库容量评价与工作气量设计是研究重点和难点。分述了采用压降法、流动物质平衡法与产量不稳定分析法等计算动态储量的方法,评价了榆林气田南区储气库库容量,利用气藏工程方法确定储气库工作气量与库容量的比例为27.5%,利用气藏工程多参数优化与岩心注采仿真模拟实验相结合的方法确定储气库工作气量比例为25%～30%,综合以上结果,确定储气库工作气量为库容量的25%～30%。
Gas storage capacity and working gas volume are key issues in the construction of gas storage,the working gas volumes are in mutual limitation with operating pressure of gas storage,cushion gas volume and injection and production wells.Pressure drop method,flowing medium balance method and yield instability analysis method of calculating dynamic reserves are discussed.Evaluation on the storage capacity in southern district of Yulin Gasfield is made.The results show that the ratio of working gas volume to storage capacity gas is 27.5% with gas reservoir engineering method,and 25%～30% with the combination of multi-parameter optimization of the gas reservoir engineering and core injection and production simulation experiments,and integrated together with the evaluation results,the optimal working gas volume of the gas storage capacity is at 25% to 30%.
出处
《油气储运》
CAS
2012年第12期891-894,968,共4页
Oil & Gas Storage and Transportation
关键词
低渗岩性气藏
储气库
库容量
工作气量
仿真模拟实验
low permeability lithologic gas reservoirs,gas storage,storage capacity,working gas volume,simulation Experiment
