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通过对我国古生界及三叠系颗粒滩相碳酸盐岩储层的综合分析,以储层动态发育演化为主线,研究其主控因素,认为滩相碳酸盐岩储层的发育演化主要受沉积、成岩和构造三大地质因素的联合控制。探讨了沉积古地理、海平面相对升降变化、白云岩化作用、溶蚀作用等因素对滩相储层发育与演化的影响,指出发育于海底古地貌高地上的浅水高能台缘滩和台内滩决定了滩相储层的原始空间分布,而海平面下降半旋回则有利于滩相储层的发育与演化,滩相沉积物的早期白云岩化有利于形成孔渗性较好的残余颗粒白云岩和晶粒白云岩,早期大气淡水溶蚀作用以及与油气运移同步的埋藏溶蚀作用是滩相储层优化改造的关键因素。这可以为滩相颗粒碳酸盐岩储层形成机理和预测模型的深入研究提供基本的地质框架。
Based on the comprehensive analysis of the Paleozoic and Triassic granulite facies carbonate reservoirs in China, taking the dynamic development and evolution of the reservoir as the main line and studying the main controlling factors, it is considered that the development and evolution of the facies carbonate reservoirs Mainly by the sedimentary, diagenetic and tectonic joint control of the three major geological factors. The effects of sedimentary palaeogeography, relative sea-level change, dolomitization, dissolution and other factors on the development and evolution of beach facies reservoirs are discussed. It is pointed out that shallow-water high-energy stage margin beach and platform beach Determine the original spatial distribution of the beach facies reservoirs, and the sea-level decline of the semi-cycle is conducive to the development and evolution of the beach facies reservoirs, early dolomitization of beach facies sediments is conducive to the formation of porous particles better residual particle white clouds Rock and grain dolomite, the early atmospheric freshwater erosion and the synchronic burial dissolution are the key factors for the optimization and reformation of the beach facies reservoir. This can provide a basic geological framework for the further study of the formation mechanism and prediction model of the carbonate facies in the beach facies.