大庆石油地质与开发2025，Vol.44Issue(4)：31-41,11.DOI:10.19597/J.ISSN.1000-3754.202403055
准噶尔盆地滴南凸起中段侏罗系头屯河组天然气成藏条件与勘探方向
Natural gas accumulation conditions and exploration direction of Jurassic Toutunhe Formation in middle zone of Dinan uplift in Junggar Basin
摘要
Abstract
In view of unclear understanding of natural gas exploration direction of Jurassic Toutunhe Formation,which is the main target strata series of middle zone in Dinan uplift of Junggar Basin,based on fine interpretation of seismic data and test data of reservoir samples,hydrocarbon accumulation conditions of Toutunhe Formation in studied area are analysed to discuss the controlling factors of natural gas accumulation,determining favorable explo-ration targets.The results show that Jurassic Toutunhe Formation in middle zone of Dinan uplift has superior gas ac-cumulation conditions.Dongdaohaizi Sag in the south and underlying Carboniferous source rocks in studied area pro-vide excellent material basis for gas accumulation,large delta sedimentary system developed in central part of stud-ied area provides good storage conditions for gas accumulation,and widely distributed lithologic-structural traps provide favorable places for gas accumulation.Faults connected to source rocks are the foundation for gas accumula-tion in Toutunhe Formation,and lithological-structural traps control gas distribution.The result of favorable targets selection suggests that,DX149 well block has superior natural gas accumulation conditions and can serve as favor-able target for increasing reserves and production,and traps in western DX121 well block are relatively well-de-fined as potential exploration targets.The research provides theoretical basis for further natural gas exploration of Ju-rassic Toutunhe Formation in middle zone of Dinan uplift.关键词
油气成藏条件/控藏因素/有利目标/侏罗系头屯河组/滴南凸起/准噶尔盆地Key words
hydrocarbon accumulation condition/reservoir-controlling factor/favorable target/Jurassic Toutunhe Formation/Dinan uplift/Junggar Basin分类
能源科技引用本文复制引用
石新朴,刘泽民,张长瑞,刘成,仇丽蓉..准噶尔盆地滴南凸起中段侏罗系头屯河组天然气成藏条件与勘探方向[J].大庆石油地质与开发,2025,44(4):31-41,11.基金项目
中国石油天然气股份有限公司重大科技专项"复杂气藏有效开发及稳产关键技术研究与应用"(2017E-0410). （2017E-0410）
