摘要
根据层序地层理论,在四川盆地东缘晚三叠世中侏罗世陆相盆地充填系列中划分出3个构造层序和5个层序。3个构造层序代表3个充填演化阶段。早期稳定沉降补偿充填阶段,气候潮湿炎热,有利于储层及烃源岩发育;中期中等强烈沉降欠补偿补偿充填阶段,气候潮湿半潮湿,有利于烃源岩及盖层发育;晚期强烈沉降补偿充填阶段,气候半干旱,对储层及盖层发育有利。
Based on sequence stratigraphic theory, 3 structural sequences and 5 sequences are divided in the filling system of terrestrial basin of Late Triassic-middle Jurassic system in the eastern margin Sichuan Basin. Three structural sequences represent 3 basin filling and evolution stages. At the early stage of stable settlement compensation filling, because of humid and hot climate, it is beneficial for reservoir and source rock development. At the middle stage of mid-intensive settlement with less compensation-compensation, because of humid and semi-humid climate, it is beneficial for source rock and caprock development. At the late stage of intensive settlement with compensating fill, because of dry climate, it is beneficial for reservoir and caprock development.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2006年第3期9-12,共4页
Journal of Oil and Gas Technology
关键词
层序地层
上三叠统
中侏罗统
四川盆地
sequence stratigraphy
upper Triassic system
middle Jurassic
Sichuan Basin
