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辽河西部凹陷曙１０３块潜山由中元古界长城系高于庄组组成，其沉积环境属碳酸盐岩台地潮缘，测井资料和地震剖面均显示出潜山内幕具两个明显的旋回层序。根据钻井岩心资料推断，这些旋回的岩性组合是：泥晶白云岩、层状叠层石白云岩、锥状叠层石白云岩或凝块石白云岩，它们分别形成于不同的水动力条件，因此其岩石结构、构造及孔隙发育程度都不尽相同。锥状、凝块石白云岩等属于中高能带的产物，结构粗，原生孔隙发育，后期多充填，在此基础上经溶蚀形成较发育的溶蚀孔洞；而其余岩类均为低能带产物，孔隙、裂缝不甚发育。这种岩性的旋回性变化与潜山各部位风化溶蚀程度的差异，直接影响各油井的产能
The Shushan 103 buried hills in the western depression of Liaohe consist of the Upper Yuzhuang Formation of the Paleoproterozoic Great Wall System. The sedimentary environment belongs to the tidal edge of carbonate platform. Both logging data and seismic sections show that there are two obvious Cyclical sequence. According to the drilling core data, it is inferred that the lithology combinations of these cycles are: dolomitic dolomite, stratiform superimposed dolomite, pyramidal laminated dolomite or clod dolomite, which are formed under different hydrodynamic conditions , So its rock structure, structure and porosity are not the same level of development. Conical, clinker dolomite and other belonged to the product of medium and high energy band, the structure is coarse, the primary pore is developed, and the later is multi-filled. On the basis of this, the more developed dissolution holes are formed through dissolution; while the remaining rocks are the products with low energy band, Pores, cracks are not very developed. The difference between the cyclic variation of this lithology and the weathered erosion of various parts of the buried hill directly affects the productivity of each well