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本文试图利用沉积岩中干酪根的镜质体反射率和运用干酪根热解模拟实验取得的活化能两者之间的相关关系。建立地区性温度一时间关系式。从而,定出生油岩生油门限温度值。实例样品主要来自松辽南部乾安地区青山口组生油岩。通过热解实验及其模拟求得的活化能、镜质体反射率(经与实测反射率的对照其最大偏差为8.06%)建立logt-1/T关系并求得该地区青山口组生油门限温度为69℃。该地区石油地质工作者的生油门限温度估算值为65℃。
This paper attempts to make use of the relationship between the vitrinite reflectance of kerogen in sedimentary rocks and the activation energy obtained by the kerogen pyrolysis simulation experiment. Establish a regional temperature-time relationship. Thus, set the source rock oil production threshold temperature. The samples are mainly from the Qingshankou Formation source rocks in Qian’an, southern Songliao. Through the pyrolysis experiment and the simulated activation energy, the vitrinite reflectance (maximum deviation from the measured reflectance is 8.06%) establishes the logt-1 / T relationship, The temperature limit is 69 ℃. The estimated geothermal threshold for petroleum geologists in the area is 65 ° C.