P油田长4+5_2小层孔隙度三维模型的建立

Porosity 3D model for Chang 4 + 5_2 subzone in P oilfield

为了更准确的评价P油田主要产层长4+5_2小层的储集能力,以随机模拟建模方法对该层的孔隙度进行研究,建立孔隙度分布三维模型。研究表明,长4+5_2小层属于低孔储层,平均孔隙度为11.85％。根据P油田储层物性分类原则,该储层在本区分布较为广泛,是今后挖潜的重点。

In order to accurately evaluate reservoir capacity of Chang 4 + 52 subzone, which is the major pay zone of P oilfield. its porosity has been studied through probabilistic modeling, and a 3D model of porosity distribution has been established. The study shows that this subzone has low porosity, averaging 11.85% . According to petrophysical property classification principle of this oilfield, such reservoir occurs extensively in this area, and is the focal target of future potential tapping.