大庆石油地质与开发2026，Vol.45Issue(2)：1-10,10.DOI:10.19597/J.ISSN.1000-3754.202408041
四川盆地仪陇-平昌地区凉高山组页岩生烃特征及页岩油资源潜力
Hydrocarbon generation characteristics and shale oil resource potential of Lianggaoshan Formation shale in Yilong-Pingchang area of Sichuan Basin
摘要
Abstract
In order to clarify hydrocarbon generation characteristics and shale oil resource potential of Lianggaoshan Formation shale in Yilong-Pingchang area of Sichuan Basin,material balance method,thermal simulation experi-ment and basin simulation method are used to conduct the research on the original hydrocarbon generation poten-tial,hydrocarbon generation and expulsion efficiency and hydrocarbon generation,as well as shale oil resource esti-mation based on the principles of genesis and volume,and the division of shale oil resource potential zones is com-pleted.The results show that Lianggaoshan Formation in Yilong-Pingchang area shale has large net pay thickness(40～80 m),favorable organic matter type(Type Ⅱ),moderate abundance(w(TOC)of 0.50%～3.39%)and high maturity(Ro 1.0%to 1.9%).The average original hydrogen index of shale is 522 mg/g.Conditions for oil generation are abundant when the hydrocarbon generation conversion rate is 70%～95%,and the vitrinite reflectance is 1.04%～1.72%.Hydrocarbon generation of Lianggaoshan Formation shale in studied area estimated by the organic carbon-hydrogen index formula method and basin simulation method are 92.26×108 and 94.02×108 t,respectively.Shale oil resources estimated by the genetic method and volume method are 25.60×108 and 27.35×108 t,respectively.The studied area is located in Class I favorable areas for shale oil and shale gas resource potential.Central Longgang-Pingchang area is Class IA favorable area for shale oil resource potential,while northern Pingchang and areas north of Pingchang are Class IA favorable areas for shale gas resource potential.The overlapping area of the two is favor-able area for shale oil and gas resource potential.The research provides new ideas for the study of hydrocarbon gen-eration characteristics of similar types of shale and shale oil resource potential.关键词
页岩油/页岩气/生烃特征/资源潜力/凉高山组/仪陇-平昌地区/四川盆地Key words
shale oil/shale gas/hydrocarbon generation characteristics/resource potential/Lianggaoshan Forma-tion/Yilong-Pingchang area/Sichuan Basin分类
能源科技引用本文复制引用
董景海,张继伟,王显东,董忠良,王志国,王涛,汪立东,赵林海..四川盆地仪陇-平昌地区凉高山组页岩生烃特征及页岩油资源潜力[J].大庆石油地质与开发,2026,45(2):1-10,10.基金项目
中国石油天然气股份有限公司科技重大专项"陆相页岩油规模增储上产与勘探开发技术研究"(2023ZZ15). （2023ZZ15）
