大庆石油地质与开发2026，Vol.45Issue(3)：10-19,10.DOI:10.19597/J.ISSN.1000-3754.202410038
古龙页岩亚微米级孔隙中原油密度与分布的原位定量观测方法
In-situ quantitative observation method for oil density and distribution in submicron-scale pores of Gulong shale
摘要
Abstract
In order to identify the distribution of light oil in Gulong shale,laser scanning confocal freezing observa-tion technology is used to systematically analyze oil samples from Songliao Basin.The relationship between R/G in-tensity ratio of reflection light-long/shortwave fluorescence multiple scanning images and oil density is established,as well as an in-situ observation method for light oil,medium oil and heavy oil components(including heavy oil,resin asphaltene and hydrocarbon-generating parent material)in Gulong shale.The results show that shale oil in Qingshankou Formation of Well S18 in Gulong Sag of Songliao Basin mostly presents to be irregular,patchy and sporadic.The content of light oil is significantly higher than that of medium oil and heavy components,with an aver-age area ratio light/(medium+heavy)oil up to 8.6.In observed well intervals,light oil is mainly enriched in lami-nated-layered shale.Based on the area ratio distribution of light oil and the light/(medium+heavy),reservoir mem-bers are evaluated.In general,Q9 reservoir member in this well is superior to Q6-Q7 reservoir members,and Q6-Q7 reservoir members are superior to Q1-Q2 reservoir members.Systematic observation and study of the distribution of light oil in the shale provide new important basis for optimizing exploration and development targets and selecting fracturing horizontal well intervals.关键词
页岩油/轻质油/激光扫描共聚焦显微镜/冷台/含油性/岩性/松辽盆地Key words
shale oil/light oil/laser scanning confocal microscope/cold stage/oil-bearing properties/lithology/Songliao Basin分类
能源科技引用本文复制引用
高波,张刘平,冯子辉,陈凤祥,李照阳,邵红梅,黄晓天..古龙页岩亚微米级孔隙中原油密度与分布的原位定量观测方法[J].大庆石油地质与开发,2026,45(3):10-19,10.基金项目
黑龙江省重点研发计划"多资源协同陆相页岩油绿色开采全国重点实验室"(JD2023GJ02) （JD2023GJ02）
黑龙江省揭榜挂帅科技项目"古龙页岩油碳同位素分馏效应研究"(DQYT-2022-JS-753) （DQYT-2022-JS-753）
中国石油-北京大学基础研究项目"中低成熟度页岩油超临界水改质研究"(22-2-1). （22-2-1）
