摘要
页岩油赋存状态表征是众多学者和勘探家关注的热点问题,也是页岩油勘探开发评价中面临的难点问题。在系统梳理总结当前页岩油赋存空间可视化与定量化表征、不同赋存状态油/烃定量表征实验技术系列以及分子动力学模拟法表征技术研究进展的基础上,阐述了主要表征技术的优势与不足,提出了应用过程中需要注意的事项,探讨了页岩油赋存状态表征技术重点攻关方向。在获取密闭保压取心岩心且采用液氮冷冻保存样品基础上,未来页岩油赋存状态表征技术攻关应聚焦于以下4个方面:(1)超低温荧光光谱、激光扫描共聚焦显微镜和环境扫描电镜页岩油赋存特征可视化表征技术及其联用技术;(2)页岩纹层原位微区滞留油赋存状态与组分在线分析技术;(3)超低温与地质条件下二维核磁共振流体赋存空间与赋存状态定量表征技术;(4)近地质条件下多尺度孔缝系统内页岩油赋存状态分子动力学模拟技术。通过多技术联用与技术创新来推进页岩油赋存状态表征技术的完善与发展,以实现页岩油赋存空间、赋存形态、赋存状态与组分近原位、可视化与定量化表征,为高效支撑我国陆相富有机质泥页岩层系含油性、赋存状态与可动性评价以及页岩油甜点层段的优选、资源量的合理评估与分级评价提供可靠的科学依据。
The characterization of shale oil occurrence state is a hot topic of concern for many scholars and explorers,and it is also a challenging problem in the exploration and development evaluation of shale oil.This study systematically summarizes the current research progress on the visual and quantitative characterization of shale oil occurrence space,experimental techniques for the quantitative characterization of oil/hydrocarbon in different occurrence states,and characterization technology of molecular dynamics simulation.The advantages and limitations of the main characterization techniques are discussed,issues needing attention in the application process are highlighted,and the key research directions of shale oil occurrence characterization technology are explored.Based on the acquisition of sealed,pressure-preserved core samples and the use of liquid nitrogen freezing for sample preserva-tion,future research on shale oil occurrence state characterization technology should focus on the following four aspects:(1)visualization characterization technologies for shale oil occurrence characteristics using ultra-low-temperature fluorescence spectroscopy,laser scanning confocal microscopy,and environmental scanning electron microscopy,as well as their combination technologies;(2)in-situ micro-zone online analysis technology for the occurrence state and components of retained oil in shale laminae;(3)quantitative characterization technology for fluid occurrence space and occurrence state under ultra-low-temperature and geological conditions using two-dimensional nuclear magnetic resonance;(4)molecular dynamics simulation technology for shale oil occurrence state within multi-scale pore-fracture systems under near-geological conditions.The improvement and development of shale oil occurrence state characterization technology should be advanced through multi-technology combination and technological innovation,so as to achieve near-in-situ,visual,and quantitative characterization of shale oil occurrence space,occurrence forms,occurrence states,and components.This will provide a reliable scientific basis for efficiently supporting the evaluation of oil content,occurrence state,and mobility,as well as the selec-tion of shale oil sweet spot intervals,and the reasonable assessment and graded evaluation of resources in China’s continental organic-rich shale series.
作者
李志明
孙中良
梁涛
常佳琦
申宝剑
冷筠滢
曹婷婷
李政
包友书
李楚雄
钱门辉
黎茂稳
贾梦瑶
杜心宇
LI Zhiming;SUN Zhongliang;LIANG Tao;CHANG Jiaqi;SHEN Baojian;LENG Junying;CAO Tingting;LI Zheng;BAO Youshu;LI Chuxiong;QIAN Menhui;LI Maowen;JIA Mengyao;DU Xinyu(State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development,Wuxi,Jiangsu 214126,China;Wuxi Research Institute of Petroleum Geology,SINOPEC,Wuxi,Jiangsu 214126,China;Key Laboratory of Petroleum Accumulation Mechanisms,SINOPEC,Wuxi,Jiangsu 214126,China;Petroleum Exploration and Production Research Institute,SINOPEC,Beijing 102206,China;Exploration and Development Research Institute,Shengli Oilfield Branch Company,SINOPEC,Dongying,Shangdong 257015,China)
出处
《石油实验地质》
北大核心
2026年第1期61-73,共13页
Petroleum Geology & Experiment
基金
国家自然科学基金企业创新发展联合基金(U24B6002)
中国石化科技部项目(P23229,P25195)联合资助。
关键词
页岩油
赋存状态
表征技术
可视化
定量表征
shale oil
occurrence state
characterization technology
visualization
quantitative characterization
