确定溶解气驱油藏压力与饱和度关系的新方法  

Novel Method to Estimate Relationship of Pressure and Saturation in Solution-gas Drive Reservoirs

作　　者：吴明涛 王晓冬[1] 董文秀[1,2] WU Ming-tao;WANG Xiao-dong;DONG Wen-xiu(School of Energy and Resources,China University of Geosciences（Beijing）,Beijing 100083,China;Beijing Key Laboratory of Unconventional Natural Gas Geology Evaluation and Development Engineering,Beijing 100083,China)

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]非常规天然气地质评价与开发工程北京市重点实验室,北京100083

出　　处：《煤炭技术》2018年第9期55-56,共2页Coal Technology

基　　金：国家自然科学基金项目(51674227)

摘　　要：针对溶解气驱油藏渗流方程的强非线性,在前人定义两相拟压力函数基础上,采用Boltzmann变换对方程进行求解,得到一种形式简单而精度较高的压力与饱和度的近似关系式。此方法虽然是从一维线性渗流模型导出的,它同样适用于一维径向渗流、应力敏感储层及其他渗流情形。该模型为油气两相渗流方程的解析或半解析求解提供了计算基础。The equations of oil-gas two phases flow in solution-gas drive reservoirs are strong non-linear. Based on the two-phase pseudopressure function, an approximate relation formula with simple form and high accuracy was obtained by the utility of Boltzmann transformation. Although the method was derived from one dimension linear flow, it can also be used in one dimension radial flow, pressuresensitivity formation and others. The model provides a basis for analytical or semi-analytical solution for equations of oil-gas two phases flow.

关 键 词：溶解气驱油藏 压力与饱和度关系 应力敏感 

分 类 号：TE312[石油与天然气工程—油气田开发工程]