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以鄂尔多斯盆地苏里格气田二叠系砂岩储层为例，从常规物性分析数据与探井试气产能的关系入手，在该区气藏地质特征及储层研究的基础上，探索性地建立了适用于该区气藏地质特征的储层工业性分类方法和评价标准，将该区储层按关键物性分析参数分为4类，每一类都对应于不同的工业价值。实践表明，这种储层分类可较好地概括该区砂岩储层的物性分布及级差特征，并能与气井的试气产能建立较好的对应关系，在该区的天然气勘探生产中，对正确评价储层工业价值、试气选层及气层改造方案的制定中都有较好的参考价值。

INDUSTRIAL CLASSIFICATION AND EVALUATION OF THE PERMIAN SANDSTONE RESERVOIR IN SULIGE GAS FIELD IN E’ERDUOSI BASIN

In order to raise the actual significance of reservoir classification and evaluation, a reservoir classification and evaluation system being able to be applied to the practical production in a region was set up in consideration of the gas reservoir features and reservoir characteristics of various regions in the process of gas exploration and development, so as to realize its industrial application. By taking the Permian sandstone reservoir in Sulige gas field in E’erduosi Basin as an example, in light of the relation between conventional petrophysical analysis data and exploration well testing productivity, the reservoir industrial classification method and evaluation index which are suitable for the gas reservoir geological features of the field were trially established on the basis of investigating the gas reservoir features and reservoir characteristics of the field. According to the key petrophysical parameters, the reservoirs in the field were divided into four types, each being corresponding to different industrial values. The exploration practice indicated that such a reservoir classification might well summarize the petrophysical distribution and grade difference characteristics of the sandstone reservoirs in the field, and could set up a good correspondent relation with gas well testing productivity, Therefore it may be used for a reference to evaluating correctly the industrial value of the reservoir and the layer selection of gas well test, and to drawing up the program for gas reservoir stimulation.