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对于砂体的构型解剖,实际上就是对砂体划分各级自然存在的沉积界面及界面限定的构型要素。基于研究区的岩心和测井资料,本文在宏观上划分了粗粒三角洲前缘各级沉积界面及限定的构型要素。理论上将粗粒三角洲前缘划分到四级界面,构型要素包括前积体和湖相披覆细粒沉积体两个部分。最后探讨了构型要素对砂体连通性的影响。
The structural anatomy of the sand body is actually the sedimentary interface and the boundary-defined configuration elements that naturally exist at all levels of the sand body. Based on the core and logging data of the study area, this paper macroscopically divides the sedimentary interfaces and the defined structural elements at various levels of the front of the coarse-grained delta. In theory, the front of the coarse-grained delta is divided into four-level interfaces. The structural elements include the two parts of pre-sediment and lake-covered fine-grained sediments. Finally, the influence of configuration elements on the connectivity of sand body is discussed.