【摘要】 沉积相在空间、平面的展布特征对储层的宏观非均质性起着决定性的作用,进而对随机建模生成的储层地质模型影响强烈。白于山区目前已进入中高含水期,后期注水效果变差,产量递减快。为精细描述储集层的非均质性,对目的层长4+52进行了相控建模,依次建立了构造模型、沉积微相模型以及沉积微相约束条件下的属性模型。通过测试和储量拟合发现与实际储量的相对误差小,反映了模型的可靠性较高,为后期调整开发部署提供了地质依据。图4表1参9更多还原

【Abstract】 For sedimentary facies,its spatial and planar distribution characteristics play a definitive role in reservoir’s macroscopic heterogeneity.Therefore,it strongly influences the reservoir’s geological model created by stochastic modeling.Presently,mountains of Baiyu are at a mid-high water-cut stage,the post-stage injection effect is getting worse and production declines fast.To finely describe reservoir heterogeneity,facies-control modeling has been carried on for target layer-Chang 4+52.Then,structural and sedimentary microfacies models,and attribute model under constraints of sedimentary microfacies are established in sequence.Testing and reserve matching results show that there are very small relative errors existing in these models.Therefore,they are reliable enough to provide geological evidences for development adjustment.更多还原