低渗透率地层渗透率的确定方法

Determining Permeability in Low Permeable Strata

结合大庆油田外围低渗透率地层的地质特点,根椐渗流理论和岩心分析资料,分析了地层渗透率与孔隙度、组成地层的各种矿物含量以及泥质含量之间的关系,建立了不同矿物组合地层的渗透率计算方程。用本方法计算的和岩心分析的渗透率进行了对比,二者之间具有较好的一致性。

Based on fluid Permeability theory and core analysis result and taken into consideration of the geologic feature of Daqing Oil Field,the relationship between formation permeability and porosity, various mineral and shale contents is analysed,and the computational equations for various formations are formed as well. Compared the computed permeability with the permeability obtained from core analysis, it can be seen clearly that they agree quite well.