利用灰色关联分析法综合评价油气储层产能

油气储层的产能影响因素可分为人为因素和储层因素两类，一个油区，在各种作业方式等人为因素大致相同的前提条件下，储层产能主要取决于储层自身的性质。本文从达西二维产量公式出发，研究储层产能的理论方程，以相对渗透率与含水饱和度的函数关系为纽带，导出油气储层产能与储层有效孔隙度、渗透率以及电阻车之间的多元关系式。在此基础上，结合测井学的基本理论，将其作为储层产能综合评价的参数，采用灰色关联分析法建立了储层产能预测系统。该方法不仅可以综合定量地评价储层产能的分类，还可以通过关联度给出评价结果的可靠程度．运用此方法于新疆克拉玛依油田八区克上组储层的油气产能预测，效果良好，从而证实了方法的有效性．

Comprehensive Evaluation of Reservoir Production Capacity Through Grey Association Analysis

The influential factors on reservoir production capacity can be divided into artificial factors and reservoir factors. The reservoir production capacity depends mainly on reservoir itself on condition that the: artificial factors are basically the same. Beginning with the Darcy's two -dimensional production equation, a theoretical equation of reservoir production capacity is derived and the multivariate function between reservoir production capacity and reservoir effective porosity, permeability and resistivity is established through tile use of the functional relation between relative permeability and water saturation. On base of the above studies, a reservoir production capacity predicting system is established with grey association analytical method. This method not only can comprehensively and quantitatively evaluate the categorization of reservoir production capacity but also can give out the reliability of evaluation results through relation degree. Its effectiveness has been verified by the predicted production capacity of the Keshang Formation in the District 8, Kelamayi oilfiled.