大庆石油地质与开发2025，Vol.44Issue(2)：11-18,8.DOI:10.19597/J.ISSN.1000-3754.202310026
四川盆地大庆探区震旦系—寒武系深层天然气勘探潜力分析与实践
Analysis and practice of exploration potential of Sinian-Cambrian deep gas in Daqing exploration area of Sichuan Basin
摘要
Abstract
Several sets of gas-bearing strata develop in Sinian-Cambrian Daqing exploration area of Sichuan Basin,but the distributions of exploration potential and favorable plays are unclear.By analyzing main controlling factors of generation,accumulation and seal of each strata series,exploration potential of key strata series and favorable plays are studied via comprehensive evaluation technique of integrated geological and geophysical analysis.The re-sults show 2 long-term inherited local structural high belts developed in 4th Member of Sinian Dengying Formation.Superposition of source-connecting faults with effective reservoirs controls oil and gas enrichment.Deployed Well HS5 obtains more than 1 million of cubic meters of gas production.Secondary platform margin belt develops in 2nd Member of Sinian Dengying Formation.High-energy mound-shoal complex is reformed by karstification in Tongwan period,forming high-quality gas-rich reservoirs.Sedimentation of Canglangpu Formation,Longwangmiao Forma-tion and Xixiangchi Formation in Cambrian was at paleogeomorphologic high,and developed dissolved vuggy high-energy grain-shoal bodies with good gas-bearing properties.Well GT1 is deployed for 3D revelation.The research confirms gas resources in place of Sinian-Cambrian in Daqing exploration area exceeding 1 trillion cubic meters,and provides guidance for further submission of scale-beneficial proved reserves.关键词
四川盆地/大庆探区/震旦系—寒武系/深层天然气/探明储量Key words
Sichuan Basin/Daqing exploration area/Sinian-Cambrian/deep gas/proved reserves分类
石油、天然气工程引用本文复制引用
宫宝,陈欣,张迪,马威奇,马新海,隋立伟,杨春宇..四川盆地大庆探区震旦系—寒武系深层天然气勘探潜力分析与实践[J].大庆石油地质与开发,2025,44(2):11-18,8.基金项目
中国石油天然气股份有限公司科学研究与技术开发项目"中石油'十四五'油气资源评价"子项目"大庆油田探区'十四五'油气资源评价"(2023YQX20102). （2023YQX20102）
