高蜡油成因及其形成聚集的地球化学效应

Geological Science and Technology Information(2007)

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Abstract
全球湖相原油的含蜡量普遍较高,在辽河断陷大民屯凹陷、南阳凹陷原油的含蜡量高达59%.关于高蜡油的成因,最初有陆相高等植物成因说,近年来认识到低等水生生物也可生成高蜡油,但对部分高蜡油的成因机制依然不清楚.除了母质因素外,着重论述了微生物改造作用、催化合成反应、温度场效应、压力场效应、运移分馏效应等动力学作用和地球化学效应对高蜡油形成聚集与次生变化的控制作用.讨论了大民屯凹陷高蜡油的成因及其形成聚集的地质-地球化学作用.
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Key words
catalytic synthesis,geneses of high-wax oil,temperature field effect,geochemistry effect,migration fractionation effect,dynamics process
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