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运用差热—色谱联机分析仪对不同煤阶的标准煤样及泥岩和碳酸盐岩烃源岩的热模拟研究表明，低成熟的煤具有更强的放热反应和较大的失重量，其放热反应第一峰温度和失重温度相对较低。低煤阶煤在热模拟过程中比高煤阶煤具有更强的生烃能力。烃源岩气态烃的生成量和特征不仅受控于烃源岩中有机质的丰度而且与其岩石类型、干酪根类型、成熟度等存在着密切关系。成熟度较高的烃源岩属耗尽了的烃源岩，其生烃能力相对较弱。含Ⅰ、Ⅱ型干酪根烃源岩生成的气态烃中重组分含量普遍较高，含Ⅲ型干酪根烃源岩生成的气态烃中甲、乙烷等轻组分含量普遍较高。碳酸盐岩烃源岩在热模拟的高温阶段往往能生成比较大量的气态烃。
The thermal simulations of standard coal samples with different coal rank and source rocks of mudstone and carbonate source rock by differential thermal analysis-on-line analytical instrument show that low-mature coal has stronger exothermic reaction and larger weight loss, Its exothermic first peak temperature and weight loss temperature is relatively low. Low-rank coal has a higher hydrocarbon generation capacity than thermal coal in thermal simulation. The formation and characteristics of gaseous hydrocarbons in source rocks are not only controlled by the abundance of organic matter in source rocks, but also closely related to their rock types, kerogen types and maturity. Source rocks with high maturity are depleted source rocks and their hydrocarbon generation ability is relatively weak. The content of heavy components in gaseous hydrocarbons generated from source rocks containing type I and type II kerogen is generally high, and the content of light components such as methane and ethane in gaseous hydrocarbons produced from type III kerogen source rocks is generally high. Carbonate source rocks tend to generate relatively large quantities of gaseous hydrocarbons during the high temperature stages of thermal simulation.