惠民凹陷临13断块沙二下储层结构模型

惠民凹陷临１３断块沙二下沉积期主要发育了滨浅湖滩坝和风暴沉积，共划分出６种岩石相类型。储层的储集空间以原生孔隙为主，物性较好，主要受沉积微相或岩相控制，其中滨浅湖滩坝沉积的主体微相或颗粒支撑砂岩相为高孔高渗带。沙二下沉积期的滨浅湖滩坝和风暴沉积相对稳定，非均质性程度低。但是，由于沉积物的粒度偏细，泥质含量高，渗透率的非均质性程度高于孔隙度

STRUCTURAL MODEL OF RESERVOIR AT THE LOWER SHA-2 IN LIN-13 BLOCK OF HUIMIN DEPRESSION

The shore to shallow lake shoal and storm deposits are mainly developed during the sedimentary period of the lower Sha 2 in Lin 13 block of Huimin Depression. These deposits can be divide into six lithofacies. The reservoir space is mainly primary pore, and the reservoir quality is better. The characteristics of the reservoir quality is controlled by the sedimentary microface or lithoface of the reservoir, and the shoal core is the best reservoir zone. The sedimentology of the shore to shallow lake shoal and storm deposits are relatively stable, and the homogeneous degree is better druing the sedimentary period of the lower Sha 2. The homogeneous degree of the porosity is better than that of the permeability because the sedimental size is fine and the content of mud is high.