基于储层分类的风化壳储层测井评价方法

Weathering Crust Logging Evaluation Method Based on the Reservoir Classification

利用压汞及微观孔隙结构分析资料，将鄂尔多斯盆地中部下古生界碳酸盐岩有效储层划分为3类，不同类型的产层表现出的产量差异较大，常规测井系列下，各类储层均有一定的电性差异。在对测井数据归一化处理的基础上．利用贝叶斯准则下的多元判别分析方法，对3类储层进行测井评价分类，收到较好的效果。判识符合率达80％以上。

Effective reservoirs of Lower Paleozoic carbonate rocks in central Ordos basin can be divided into three groups, by use of mercury intrusion and microscopic pore structure analysis data. There are large differences in production rates from various producing reservoirs. Under conventional logging series, there are certain electric differences in various reservoirs. Based on the unitary processing of logging data and by use of a multiple differentiation analysis method under the Bayesian criteria, the three types of reservoirs are evaluated on well-logging and classified, with good results. The accordance rate of identification was over 80%.