余家坪中区长2储层非均质特征

Heterogeneous Characteristics of Chang 2 Reservoir in Central Area of Yujiaping

本区属典型的低渗储层,构造平缓。从层内、层间、平面等方面研究表明,本区储层具有较强非均质性,其成因为河道快速变迁,多期叠加。总体来说纵向变化速度要小于平面变化。

The area belongs to the typical low permeability reservoir with gentle structure.From the aspects of inner layer,interlayer,plane and so on,the reservoir was studied.The results show that the reservoir has strong heterogeneity because of rapid change of river channel and multimode superposition.Overall,the rate of longitudinal change is less than that of the plane change.