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从储层宏观与微观非均质性入手,对子长油田中庄区长6储层的砂体、孔隙度和渗透率的空间分布,以及孔隙结构和孔隙类型的进行研究,并建立了储层的三维地质模型。层内非均质性主要受沉积、渗透率以及夹层分布等的影响;平面非均质性特征受砂体及沉积微相展布影响较大,沿河道延伸方向非均质性较好。研究区内主要发育残余粒间孔和溶蚀孔。研究认为主力油层长61在层内、层间、平面上和微观孔隙上,都存在较强的非均质性。
Beginning with the macroscopic and microscopic heterogeneity of reservoir, the paper studies the sand body, the spatial distribution of porosity and permeability, the pore structure and pore type of Chang 6 reservoir in Zhongzhuang Oilfield, Zizhang Oilfield, and establishes the reservoir 3D geological model. The intra-layer heterogeneity is mainly affected by sedimentation, permeability and interlayer distribution. The planar heterogeneity is greatly affected by the distribution of sand bodies and sedimentary microfacies, and the heterogeneity along the river channel is better. The main development in the study area residual intergranular pores and dissolved pores. The study shows that there is a strong heterogeneity in the length of the main oil layer in the layer, interlayer, plane and microscopic pores.