摘要
目前国内外较为成熟的数值模拟软件的内核计算模型都是基于达西定律进行研制开发的。而众多实验室研究和现场实例表明低渗透储层的渗流状况已经不遵循达西定律,因而鉴于此类大型商业软件无法表征低渗透储层存在启动压力的情况,研究了进行等效模拟启动压力梯度的新方法。该方法运用数值模拟软件中"门限压力"关键字,通过设置平衡分区进行等效模拟油层存在启动压力的状况。油田实例证明此方法较好地模拟了低渗透储层的启动状况,对于矿场应用数值模拟进行方案分析具有重要的现实意义。
Currently,the inner cores of most commercial numerical simulation softwares are all based on Darcy＇s law.However,it had been revealed by many experimental researches and pilot tests that flow in the low permeability reservoir didn＇t obey Darcy＇s law,thus,most commercial numerical simulation softwares couldn＇t describe the start-up pressure in low permeability reservoir.A novel method to equivalent simulates start-up pressure gradient was put forward.Keyword threshold pressure in numerical simulation software was applied,start-up pressure in low permeability reservoir was realized through setting equilibrium partition.Pilot test had proved the effectiveness of this novel method in simulating start-up pressure in low permeability reservoir,which was of great practical significance to numerical simulation application in pilot test.
出处
《科学技术与工程》
北大核心
2012年第1期165-167,179,共4页
Science Technology and Engineering
关键词
低渗透
等效模拟
启动压力梯度
平衡分区
low permeability equivalent simulate start-up pressure gradient equilibrium partition
