济阳坳陷页岩油勘探实践与认识

发布时间：2018-12-31 19:54

【摘要】：北美在海相页岩油的勘探开发中已获得巨大成功,显示页岩油工业化勘探开发的价值。在中国东部陆相断陷盆地典型代表济阳坳陷页岩油勘探实践中,利用烃源岩综合评价技术揭示了咸化湖泊泥页岩具有生烃早、生烃转化率高的成烃机制,利用泥页岩微观孔隙结构表征技术明确了纹层状岩相具有孔隙度高、孔径大和连通性好的储集性能,利用游离油定量评价技术建立了济阳坳陷不同沉积环境泥页岩有利岩相中游离油差异富集模式。与北美页岩油对比研究认为,济阳坳陷有利岩相发育是页岩油富集的基础,适宜演化程度是页岩油富集的条件,充足游离组分是页岩油富集的关键,良好可压性能是实现有效开发的保证。在此基础上,建立了适合于中国东部陆相断陷盆地咸化湖泊沉积页岩油选区评价标准。
[Abstract]:North America has achieved great success in the exploration and development of marine shale oil, indicating the value of industrial exploration and development of shale oil. In the exploration practice of shale oil in Jiyang Depression, a typical continental faulted basin in eastern China, the hydrocarbon generation mechanism of brackish lake shale is revealed by using the comprehensive evaluation technique of source rock, which is characterized by early hydrocarbon generation and high hydrocarbon generation conversion. The micropore structure characterization of shale shows that the laminated facies have high porosity, large pore size and good connectivity. A model of differential enrichment of free oil in the favorable lithofacies of shale in different sedimentary environments in Jiyang depression was established by using free oil quantitative evaluation technique. In contrast with North American shale oil, the favorable lithofacies development in Jiyang depression is the basis of shale oil enrichment, the suitable evolution degree is the condition of shale oil enrichment, and the sufficient free component is the key to shale oil enrichment. Good compressibility is the guarantee of effective development. On this basis, the evaluation criteria suitable for the selection of saline lake sedimentary shale oil in continental faulted basins in eastern China are established.
【作者单位】：中国石化油田勘探开发事业部;
【基金】：国家重点基础研究发展计划(973)项目“中国东部古近系陆相页岩油富集机理与分布规律”(2014CB239105) 山东省地质勘查项目“山东省页岩气成矿条件研究和资源潜力预测”[鲁勘字(2013)1号] 中国石化科技攻关课题“东营凹陷不同类型泥页岩烃类特征研究”(P15117)
【分类号】：P618.13

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