用常规测井资料评价塔北低阻储层孔隙组分的方法

Low resistance reservoir porosity composition evaluation method in North Tarim basin with conventional well logging data

针对三孔隙水导电模型的应用和储层精细评价的需要,提出了三孔隙组分(自由流体孔隙、微孔隙、粘土水)的数值解法,并根据塔里木盆地北部地区部分低阻层的储层物性特征,利用岩心分析数据与测井数据建立了一组三孔隙组分的地区统计关系式,较好地满足了生产的需要。

Based on application of three pore water electric conduction models and the needs of reservoir fine evaluation, a numerical solution for the three pore components (free fluid pore, micro pore, and clay water) has been given in this paper. Based on reservoir's physical properties in some low resistance layers in North Tayim basin, the paper has established a set of regional statistical relation expressions for three pore components with core analysis data and well logging data to satisfy the production need. The method can be rolled out other regions with similar reservoir.