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本文分析了有机质在粘土矿物中的赋存状态，测定了粘土矿物的表面酸、实验模拟了低演化程度的烃源岩及其抽提物干酪根＋不同粘土矿物的催化机制、并通过粘土催化醇脱水反应对粘土过渡带有机质成气机理进行了探讨。研究结果表明，过渡带气的形成主要是受蒙脱石粘土矿物的催化所致，其原因是成岩过程中蒙脱石向混层矿物转化在蒙脱石晶间发生大量的铝代硅，因此在粘土表面产生电荷不平衡而形成酸性，井以路易斯酸和布郎酸作用于有机质，使碳－碳键发生断裂以形成气态烃。
In this paper, we analyze the occurrence of organic matter in clay minerals, determine the surface acid of clay minerals, experimentally simulate the mechanism of catalytic activity of low evolution degree source rocks and their kerogen + different clay minerals, Alcohol dehydration reaction on the clay transitional zone organic matter into gas mechanism were discussed. The results show that the formation of transitional gas is mainly caused by the catalysis of montmorillonite clay minerals. The reason for this is that the conversion of montmorillonite to mixed minerals into the mixed minerals occurs a large amount of aluminum-substituted silicon between the smectite grains during diagenesis Charges on the clay surface create an imbalance of charges and form wells. Lewis and Brønsted acids act on the organic matter and break the carbon-carbon bonds to form gaseous hydrocarbons.