大庆石油地质与开发2026，Vol.45Issue(1)：27-36,10.DOI:10.19597/J.ISSN.1000-3754.202404042
鄂尔多斯盆地西部青石峁地区断裂体系特征及油气地质意义
Fault system characteristics and geological significance of oil and gas in Qingshimao area of western Ordos Basin
摘要
Abstract
In recent years,Changqing Oilfield discovered a 100 billion cubic meters gas field in Qingshimao area of western Ordos Basin,which has strong structural activities with multi-stages developed faults.Research on charac-teristics of fault system is important for clarifying enrichment law of gas reservoirs.Based on 3D seismic interpreta-tion results,geometric and kinematic characteristics of faults are analyzed to study fault system types and active stages of Qingshimao area in western Ordos Basin,and then to discuss geological significance of petroleum in differ-ent types of fault systems during gas reservoir accumulation period.The results show that,taking angular unconfor-mity of upper Paleozoic bottom as the boundary,Qingshimao area is divided into upper set and lower set of structur-al strata.5 sets of fault systems are identified and 3 structural activity periods are divided.Among them,SN-strike tensile fault system was mainly active in Caledonian-Hercynian,NWW-strike en echelon fault system and NW-strike brush fault system were mainly active in Indosinian,and SN-strike compressive fault system and NEE-strike tensile fault system were mainly active in Yanshan-Himalayan.Based on matching relationship between fault activi-ty period and gas reservoir accumulation period,it is clarified that Caledon-Hercynian faults are trap-controlling faults,Indosinian faults are transport faults,and Himalayan faults are adjustment faults.The research provides the-oretical basis for exploration and development of deep gas reservoirs in Ordos Basin.关键词
断裂特征/断裂体系/构造层/构造活动时期/油气地质意义/青石峁地区/鄂尔多斯盆地Key words
fault characteristics/fault system/structural strata/structural activity period/petroleum geological significance/Qingshimao area/Ordos Basin分类
能源科技引用本文复制引用
韩兴刚,张园园,王龙,冯敏,褚景文,王艳,刘晓文,刘宗堡..鄂尔多斯盆地西部青石峁地区断裂体系特征及油气地质意义[J].大庆石油地质与开发,2026,45(1):27-36,10.基金项目
国家自然科学基金青年科学基金项目"伸展条件下不同走向断层生长连接模式及伴生圈闭形成机制研究"(42102173) （42102173）
中国石油天然气股份有限公司科技重大专项"致密砂岩气藏提高采收率关键技术研究"(2023ZZ25) （2023ZZ25）
中国石油天然气股份有限公司长庆油田公司"揭榜挂帅"科技项目"青石峁气田成藏特征、主控因素及开发技术对策研究"(2022D-JB04). （2022D-JB04）
