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Thermal simulation experiment on the hydrocarbon regeneration of marine carbonate source rock

机译：海相碳酸盐岩烃源岩生烃热模拟实验

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摘要

Hydrocarbon regeneration of marine carbonate source rock was simulated with thermal experiments in a laboratory. The results reveal that hydrocarbon regeneration does not simply continue the primary hydrocarbon generation process, and that, for marine carbonate source rock, discontinuous hydrocarbon generation differs greatly from the continuous generation. Several different features of hydrocarbon regeneration were observed in the experiments. First, the liquid hydrocarbon generation peak was always observed no matter what the initial maturity of the sample was. Moreover, the maturity and the liquid hydrocarbon yield corresponding to the peak varied with the sample's initial maturity. Second, the hydrocarbon regeneration started earlier than the continuous one. In the experiments, the hydrocarbon could be re-generated when the sample maturity did not rise to any great extent. Third, the accumulative hydrocarbon-generating quantity during discontinuous generation was always more than that during continuous generation. And the hydrocarbon-generating quantity varied with the discontinuous generation history. Chemical kinetic analysis suggests that discontinuous hydrocarbon generation should not only be explained by the parallel reaction mechanism but also by the consecutive reaction mechanism which has been ignored in the traditional chemical kinetic model for continuous hydrocarbon generation.
机译：在实验室中通过热实验模拟了海相碳酸盐岩的烃再生。结果表明，碳氢化合物的再生并不仅仅是简单地继续初级碳氢化合物的生成过程，而且对于海相碳酸盐岩烃源岩而言，不连续的碳氢化合物的产生与连续的碳氢化合物的产生有很大不同。在实验中观察到了几种不同的烃再生特征。首先，无论样品的初始成熟度如何，始终观察到液态烃生成峰。而且，对应于该峰的成熟度和液态烃产率随样品的初始成熟度而变化。第二，碳氢化合物的再生比连续的碳氢化合物的再生更早开始。在实验中，当样品的成熟度没有很大程度的提高时，碳氢化合物可以再生。第三，不连续发电期间的累计生烃量始终大于连续发电期间的累计生烃量。并且烃的产生量随不连续的生成历史而变化。化学动力学分析表明，不连续烃的产生不仅应由平行反应机理来解释，而且应由连续反应机理来解释，而在传统的连续烃生成的化学动力学模型中，连续反应机理已被忽略。

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