【摘 要】
：
鄂尔多斯盆地南部上三叠统延长组张家滩油页岩不仅是重要的固体矿产资源,也是该盆地三叠系油气的主力烃源岩.对张家滩油页岩典型露头剖面、钻井岩心进行有机碳含量(TOC)、氯仿沥青“A”及族组分、含油率等相关测试分析表明,张家滩油页岩有机质丰度高,TOC介于5.11％～36.47％,平均16.15％,生烃潜量(S0+S1+S2)介于16.58～230.98 mg/g,平均94.20 mg/g,氯仿沥青“A”介于0.42％～2.22％之间,平均1.25％,属于生烃条件极好的优质烃源岩;含油率高,介于3.52％～14
【机 构】
：
页岩油气富集机理与有效开发国家重点实验室,北京 100083;中国石化 页岩油气勘探开发重点实验室,北京 100083;中国石化 石油勘探开发研究院,北京 100083;中国石化 石油勘探开发研究院,
论文部分内容阅读
鄂尔多斯盆地南部上三叠统延长组张家滩油页岩不仅是重要的固体矿产资源,也是该盆地三叠系油气的主力烃源岩.对张家滩油页岩典型露头剖面、钻井岩心进行有机碳含量(TOC)、氯仿沥青“A”及族组分、含油率等相关测试分析表明,张家滩油页岩有机质丰度高,TOC介于5.11％～36.47％,平均16.15％,生烃潜量(S0+S1+S2)介于16.58～230.98 mg/g,平均94.20 mg/g,氯仿沥青“A”介于0.42％～2.22％之间,平均1.25％,属于生烃条件极好的优质烃源岩;含油率高,介于3.52％～14.6％之间,平均8.16％,属于中高品质的油页岩;干酪根类型以Ⅰ—Ⅱ1型为主,Ro介于0.43％～1.09％.综合利用野外露头剖面和钻井岩心样品,建立了盆地南部张家滩油页岩的热演化剖面,分析了氯仿抽提前、后油页岩的含油率变化及油页岩热演化过程中含油率、热解烃产物的变化特征,揭示鄂尔多斯盆地南部张家滩油页岩具有聚集油页岩、页岩油两类资源的潜力,提出了相应的勘探开发对策.
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