成都理工大学学报（自然科学版）2017，Vol.44Issue(6)：697-707,11.DOI:10.3969/j.issn.1671-9727.2017.06.07
四川盆地雷口坡组膏盐岩成因及其油气地质意义
Genesis of gypsum-salt in the Leikoupo Formation and its hydrocarbon significance in the Sichuan Basin, China
摘要
Abstract
The formation and distribution of gypsum-salt in Upper Triassic Leikoupo Formation possess an important influence on hydrocarbon generation and reservoir development in the west Sichuan Basin.The gypsum-salt in Upper Triassic Leikoupo Formation has 4 types of lithological assemblages,the dolomite + gypsum-salt,the gypsum-salt + dolomite,the limestone + gypsumsalt and the gypsum-salt + limestone,which correspond to 4 types of genetic models of sabkha,salt lake in the supratidal environment,lagoon and evaporate basin.Gypsum-salt deposited in sabkha environment distributes widely during the Member 1 and Member 2 of Leikoupo Formation in most part of Sichuan Basin,except the Longgang area which developed in salt lake of supratidal environment.Gypsum-salt in the Member 3 of Leikoupo Formation deposited in lagoon environment in central Sichuan Basin.The gypsum-salt of Member 4 of Leikoupo Formation deposited in evaporate basin environment and it is the favorable reservoir with well developed gypsum dissolution pores,and therefore,is the favorable target for the future exploration of gas and oil in west Sichuan Basin.关键词
四川盆地/雷口坡组/膏盐岩/成因模式/油气地质意义Key words
Sichuan Basin/Leikoupo Formation/gypsum-salt/genesis/hydrocarbon significance分类
天文与地球科学引用本文复制引用
王文楷,许国明,宋晓波,隆轲,陈颖..四川盆地雷口坡组膏盐岩成因及其油气地质意义[J].成都理工大学学报（自然科学版）,2017,44(6):697-707,11.基金项目
中国石化重大科技攻关项目(P16092). （P16092）
