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本文主要应用岩石学理论 ,对雪 1井三叠系雷口坡组、嘉陵江组储集层段的沉积、成岩作用进行综合研究。探讨了雪 1井三叠系雷口坡组、嘉陵江组储集层段的沉积模式 ,划出了有利的沉积相带 (滩亚相 )。认为三叠系雷口坡组、嘉陵江组储层气藏的形成主要受控于沉积和成岩作用 ,储层主要发育于滩亚相发育部位 ,滩亚相沉积物必须配之与有利的成岩作用及成岩演化序列 ,才有可能发育成有利储层。
In this paper, the petrology theory is used to study the sedimentation and diagenesis of the Triassic Leikoupo Formation and the Jialingjiang Formation in Xue 1 well. The depositional models of the Triassic Leikoupo Formation and the Jialingjiang Formation reservoir in Xue 1 well were discussed, and favorable sedimentary facies belt (beach subfacies) was delineated. It is considered that the formation of the reservoir gas reservoirs in the Triassic Leikoupo and Jialingjiang formations is mainly controlled by sedimentation and diagenesis. The reservoirs are mainly developed in the beach-subfacies, and the sediments of the mudflats must be matched with favorable diagenesis And diagenetic evolution sequence, it is possible to develop into a favorable reservoir.