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辽河油田茨 4 1断块储层砂体类型有冲积扇砂体、浊积岩砂体、分流河道砂体和河口坝砂体 ,它们经历了压实、石英和长石次生加大、碳酸盐胶结、溶蚀等成岩作用。物性分析表明 ,冲积扇砂体、浊积岩砂体储集性能较差 ,分流河道砂体和河口坝砂体的储集性能较好。渗透率、孔隙度在单个砂体内的变化规律复杂。但总的来看 ,河口坝砂体物性非均质性要比分流河道砂体小。
There are alluvial fan sand bodies, turbidite sand bodies, distributary channel sand bodies and estuarine bar bodies in the Z441 fault block of Liaohe Oilfield. They experienced compaction, with the secondary growth of quartz and feldspar, carbonate Cementation, dissolution and other diagenesis. Physical property analysis shows that the reservoir performance of alluvial fan sand bodies and turbidite sand bodies is poor, and the reservoir performance of distributary channel sand bodies and estuary bar sand bodies is better. Permeability and porosity vary in a single sand body. However, in general, the physical heterogeneity of estuary bar sand bodies is smaller than that of distributary channel sand bodies.