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桩５２断块沙Ｉ油藏位于沾化凹陷五号桩近岸浊积扇中扇—外扇的沉积相带中。依据对油藏单井基准面旋回划分及在三维地震连井剖面上对标志层的对比标定结果发现，不同井中油层组顶、底界面由南向北依此被标定在时代较新的同相轴上，系统规则的跳穿相位现象预示油层组处于由南向北的前积反射体中。应用反射同相等时原理，确定出相邻井中油层组顶界等时关系，从而也就可划分对比出各井沉积旋回间小层的序列关系。经对各井间小层穿层数目在纵横连井剖面上的对比标定，将研究区近岸浊积体划分出由南向北、由老到新呈叠瓦状排列的２０个前积小层，同一小层在空间上的展布为东西方向延伸较远且连通较好，南北方向延伸相对较短。由于穿时作用，垂向上一口井一般多可钻遇４个小层。各小层南缘位于浊积体上超面附近，储层粒序多呈正韵律特点，小层北缘位于下超面附近，具反韵律特点，小层中部一般为块状均质沉积。在研究区由南向北各小层的储集物性及含油性有逐渐变好的趋势，储集体中的高孔、高渗、高含油饱和度带多集中在研究区的中部和北部。
Shahe reservoir of Block 52 fault block is located in the sedimentary facies of fans-exoplanets in the nearshore turbidite fan of No.5 pile in Zhanhua sag. Based on the single-well reference cycle partitioning and the comparative calibration of the marker layer on the 3D seismic well section, it is found that the top and bottom interfaces of the oil reservoirs in different wells are calibrated from south to north in the younger phase of the epoch On the other hand, the skip-phase phenomenon of the system rules indicates that the formation is in the pre-product reflector from south to north. The principle of reflection equivalence is used to determine the isochronism of the top boundary of the reservoir group in the adjacent wells. Thus, the sequence relationships between the layers of sedimentary cycles in each well can also be divided and contrasted. By comparing and calibrating the numbers of small strata in each well on the profile of Zonghenglian well, the turbidity of the nearshore in the study area is divided into 20 foregone small anaglyphs Layer, the same small layer in the spatial distribution of the east-west direction extends far and better connectivity, north-south extension is relatively short. Due to the role of wear, a vertical well generally can drill more than 4 small layers. The southern margin of each small layer is located near the superlattice of turbidimetric body. Most of the reservoirs have positive rhythmic features. The northern margin of the small layer is located near the lower superficial surface with anti-rhythm characteristics. The central part of the small layer is generally massive and homogeneous deposition. In the study area, the reservoir properties and oil-bearing properties gradually changed from south to north. The high porosity, high permeability and high oil saturation in the reservoir concentrated in the central and northern parts of the study area.