金庆花, 魏仙样, 魏建设, 宋博. 内蒙古额济纳旗西部ZK0-1井二叠系烃源岩特征及其意义[J]. 地质通报, 2015, 34(5): 953-960.
    引用本文: 金庆花, 魏仙样, 魏建设, 宋博. 内蒙古额济纳旗西部ZK0-1井二叠系烃源岩特征及其意义[J]. 地质通报, 2015, 34(5): 953-960.
    JIN Qinghua, WEI Xianyang, WEI Jianshe, SONG Bo. Characteristics of Permian hydrocarbon source rocks from Well ZK0-1, western Ejin Banner, Inner Mongolia and their significance[J]. Geological Bulletin of China, 2015, 34(5): 953-960.
    Citation: JIN Qinghua, WEI Xianyang, WEI Jianshe, SONG Bo. Characteristics of Permian hydrocarbon source rocks from Well ZK0-1, western Ejin Banner, Inner Mongolia and their significance[J]. Geological Bulletin of China, 2015, 34(5): 953-960.

    内蒙古额济纳旗西部ZK0-1井二叠系烃源岩特征及其意义

    Characteristics of Permian hydrocarbon source rocks from Well ZK0-1, western Ejin Banner, Inner Mongolia and their significance

    • 摘要: 银额盆地以古生界为目的层的钻井极少,获得的钻井岩心更是十分有限。对银额盆地西部路北凸起带ZK0-1井揭示的地层岩性组合特征进行分析,在此基础上对下二叠统暗色泥岩层段岩心系统地采集烃源岩样品,并进行有机质丰度、干酪根类型、有机质成熟度等地球化学特征分析。结果表明,银额盆地路北凸起带二叠系烃源岩厚度大(单层厚度大于43m),有机质丰度高(平均有机碳含量为3.1%),为以Ⅱ型干酪根为主、低成熟—成熟演化阶段的良好烃源岩。通过与二叠系地表剖面烃源岩地球化学特征对比,探讨了风化作用对烃源岩评价指标的影响。

       

      Abstract: As drill holes are rare in the Paleozoic target strata, cores of drill holes are very limited. In this paper, the authors analyzed the stratigraphic lithologic association characteristics revealed by Well ZK0-1 of the Lubeiup lifted zone in western Yingen-Ejin Banner basin. Based on an analysis of previous achievements, the authors systematically collected hydrocarbon source rocks from the Lower Permian dark-colored mudstone sections. The orogenic geochemical characteristics including organic abundance, kerogen types and organic matter maturity were analyzed, and the results indicate that high quality hydrocarbon source rocks are characterized by the Permian thick hydrocarbon source rocks (>43m thick per bed), high organic abundance (average TOC 3.1%), kerogen type Ⅱ and low maturity maturity stage. In addition, the weathering effects on hydrocarbon source evaluation factors were discussed on the basis of a comparative study of the geochemical characteristics of the Permian cores and outcrop samples.

       

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