马家嘴油田马3断块戴南组储层非均质性研究

Research of reservoir heterogeneity of Dainan Formation in Ma3 fault block in Majiazui Oilfield

通过岩心、薄片、测井等资料,综合利用渗透率韵律性、渗透率变异系数、渗透率级差及渗透率突进系数,对马3断块的E2d2-5、E2d1-1和E2d1-2的层内及层间非均质性进行研究,发现各层在层内及层间非均质性较强,其中E2d1-2的层间非均质性最强。利用储层物性预测技术研究其平面非均质性特征,绘制了马3断块E2d2-5、E2d1-1和E2d1-2三层的孔隙度和渗透率平面预测图,发现三个小层的东北部储层物性较好。研究成果为油田后期注水开发提供指导。

The heterogeneity of E2d2-5、E2d1-1and E2d1-2 in Ma3 fault block was studied by permeability rhythm,permeability variation coefficient,permeability differential and the coefficient of permeability to penetrate,through the core analysis,rock slices and well logging data. The results showed that there were strong heterogeneity in the interlayer and layer,and the heterogeneity of E2d1-2 was the strongest. The reservoir property prediction technology was used to study the heterogeneity in plane. The forecast figures of porosity and permeability showed that the best physical properties were in the northeast. The results could help the later water injection development of oilfield.