贵州赤水气田三叠系储层物性及孔隙结构特征

Physical Property of Reservoir in Triassic System and Pore Structural Characteristic of Natural Gas Field in Chishui Region, Guizhou

贵州赤水天然气藏的储层物性及孔隙结构参数是储层评价的重要条件 ,它决定了油气储量及产能的大小。储层物性又受岩性及成岩作用的影响 ,单从常规岩芯分析数据统计其平均值 ,不足以代表储层物性特征 ,文中着重探讨三叠系雷口坡组、嘉陵江组的物性特征及与岩性的关系 ,分析储层横向变化和影响储层物性变化的因素。

The physical property of reservoir and pore structure parameter is of important condition for evaluating the reservoir because of the determination on gas-oil reservoir and the ability of output. Besides, the physical property of reservoir is influenced by lithologic characteristic and lithogenesis. If only analyze the data in the universal drill core and make statistic average, the method is definitely insufficient to represent the reservoir physical property, thus, particularly in this paper introduces the reservoir physical property and the relation with lithologic character in Leikoupo group and Jialingjiang group of Triassic system is studied and the lateral variation of fault and the factor determining the variation of the reservoir physical property is analyzed.