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对不成熟泥炭样品进行了高压（０．１～２ＧＰａ）、高温（２００℃～４００℃）模拟实验，并对实验后样品的成熟度指标——镜质体反射率（Ｒｏ）进行了测定。结果显示，同一压力条件下，温度与镜质体反射率呈正相关；相同温度条件下，样品Ｒｏ值与压力呈负相关，说明压力同温度一样，是影响有机质成熟作用的一个重要因素，其存在会抑制有机质向高成熟演化。压力的这种作用有其内在的化学动力学机理。实验结果及实际地质现象都说明，压力作用在有机质演化过程中不可忽视。用模拟实验手段探讨压力的作用和影响，具有重要的理论及实际意义。
The immature peat samples were simulated by high pressure (0.1 ~ 2GPa) and high temperature (200 ℃ ~ 400 ℃), and the maturity index - vitrinite reflectance (Ro) of the samples was measured. The results show that under the same pressure, the temperature is positively correlated with the vitrinite reflectance. Under the same temperature, the Ro value is negatively correlated with the pressure, indicating that the same pressure as temperature is an important factor affecting the maturation of organic matter. Will inhibit the evolution of organic matter to high maturity. This effect of stress has its inherent chemical kinetic mechanism. The experimental results and the actual geological phenomena all indicate that the pressure effect can not be neglected in the evolution of organic matter. It is of great theoretical and practical significance to study the effect and influence of pressure by means of simulation experiment.