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覆盖区碳酸盐岩地层层序界面的识别很困难,可以综合应用地震、测井、岩心和野外露头等多方面的资料识别层序界面。界面识别时,应从识别野外露头的界面出发,综合应用地震资料,在沉积相研究的基础上,应用岩心、录井和测井等资料综合分析,划分层序界面,并用相邻井互相约束、彼此修正。层序界面的划分对油气勘探有重大意义,可预测川北地区下三叠统飞仙关组台缘鲕滩储集层的分布。图7参7
It is very difficult to identify sequence stratigraphy of carbonate stratum in the coverage area, and the sequence interface can be identified by comprehensively applying various data such as seismic, well logging, core and field outcrop. Based on the study of sedimentary facies, a comprehensive analysis of core, well logging and well logging data should be used to identify the sequence boundaries and be constrained by the adjacent wells. Correct each other. The division of sequence boundaries is of great significance for oil and gas exploration, and can predict the distribution of oolitic beach reservoirs in the Lower Triassic Feixianguan Formation in northern Sichuan. Figure 7 reference 7