摘要
通过对鄂尔多斯盆地长4＋5-长8储层主流喉道半径、有用孔隙度、可动流体孔隙度和流动层指数等特征参数的研究，建立一个综合反映4个参数特点的新参数——非均质系数。非均质系数可定量反映储层的非均质性．借此对盆地长4＋5-长8储层的微观非均质性进行判断、评价。
New parameters - non- homogeneous coefficients for comprehensively reflecting four parameter characteristics can be established through researching on feature parameters of Ordos Basin such as Chang 4 ＋ 5 Chang 8 reservoir mainstream throat radius, useful porosity, movable fluid porosity and flow layer index, and other characteristic parameters, non- homogeneous coefficients can quantitatively reflect non- homogeneous performance of reservoirs, thereby judging and evaluating micro-heterogeneity of basin Chang 4 ＋ 5- Chang 8 reservoirs.
