摘要
基于前期基础研究,剖析松辽盆地古龙页岩油生产实践难题,提出古龙页岩油在储集空间、相态分布、流动规律和矿物演化等方面的特殊性,解析目前面临的基础科学问题。梳理出以下6个方面的关键科学问题:①古龙页岩有机质来源、生排烃机理和影响页岩油丰度的关键因素;②古龙页岩有效储集空间类型和结构特征及其对孔隙度和渗透率的贡献;③古龙页岩矿物成因和演化规律及其对储集层有效性、敏感性与可压性的控制作用;④古龙页岩岩石力学特征与裂缝扩展规律;⑤古龙页岩油油品、相态变化规律与吸附-解吸转化主控因素;⑥古龙页岩油液固-液气作用机理与提高采收率机制。提出了实现古龙页岩油规模化经济动用的重点攻关建议:①深化油气生成与排驱、储集与运聚等机理研究,指导页岩油地质甜点优选;②深化可压性与造缝机制研究,支撑工程甜点选择及工程设计优化;③深化地层条件下流体作用机理研究,指导开发方案优选及提高采收率技术选择。古龙页岩油的成功开发需要全球专家学者贡献多学科创新想法和技术思路,解决生产难题。
Through analysis of the problems in the production of Gulong shale oil in the Songliao Basin and the scientific exploration of the preliminary basic research,the special characteristics of Gulong shale oil in terms of reservoir space,phase distribution,flow pattern and mineral evolution are proposed,and six basic scientific problems currently faced are concluded,including:(1)The source of organic matter,mechanism of hydrocarbon generation and expulsion,and key factors affecting shale oil abundance;(2)The types and structural characteristics of effective reservoir space and their contribution to porosity and permeability;(3)The genesis and evolution of minerals and their control on reservoir availability,sensitivity and compressibility;(4)The rock mechanical characteristics and fracture propagation law;(5)The shale oil products,phase change law and main control factors of adsorption and desorption conversion;(6)The shale oil-liquid solid-liquid gas interaction mechanism and enhanced oil recovery mechanism.Three key research suggestions are proposed for realizing the large-scale economic utilization of the Gulong shale oil:(1)Deepen research on the mechanism of oil and gas generation and discharge,storage and transportation,to guide the selection of geological sweet spots of shale oil;(2)Deepen research on the compressibility and fracture initiation mechanism to support the selection of engineering sweet spots and optimization of engineering design;(3)Deepen research on the fluid action mechanism under formation conditions,to guide the optimization of development schemes and the selection of technologies for enhancing oil recovery.
作者
孙龙德
刘合
何文渊
李国欣
张水昌
朱如凯
金旭
孟思炜
江航
SUN Longde;LIU He;HE Wenyuan;LI Guoxin;ZHANG Shuichang;ZHU Rukai;JIN Xu;MENG Siwei;JIANG Hang(PetroChina Daqing Oilfield Co.Ltd.,Daqing 163002,China;PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China;PetroChina Exploration&Production Company,Beijing 100724,China)
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2021年第3期453-463,共11页
Petroleum Exploration and Development
基金
国家自然科学基金科学中心项目/基础科学中心项目“数字经济时代的资源环境管理理论与应用”(72088101)
国家重点研发计划“岩石微纳孔隙剩余油分布定量评价与微观界面力学作用机理”(2019YFA0708701)
中国工程院2020年重点咨询研究项目“支撑中国陆相页岩油革命的科技创新治理体系发展策略研究”(2019-XZ-61)。
关键词
松辽盆地
古龙凹陷
陆相页岩油
资源禀赋条件
储集层特征
科学问题
攻关方向
Songliao Basin
Gulong Sag
continental shale oil
resource endowment
reservoir characteristics
scientific problem
research direction
