衡量生油岩在人工演化中有机质成熟度的参数

ON THE PARAMETER FOR ASSESSING MATURITIES OF ORGANIC MATTER IN SOURCE ROCKS DURING ARTIFICIAL MATURATION EXPERIMENTS

在人工演化实验中,用富含镜质体的褐煤样品,通过实验建立起均质镜质体反射率与加热温度间的对应关系(R^0-T_PY)。并用该对应关系去衡量各种类型生油母质在人工演化中达到的成熟度。实践表明,这样建立起的人工演化中生油母质的演化历程与地下油气生成与演化历程有较好的相似性。因此,可将人工实验结果不加修正而方便地应用于地下油气生成的定量估算。

Vitrinite-rich brown coal was sampled for our artificial maturation experiments to set up a corresponding relationship between telocolinite vitrinite reflectance and heating temperature (R°-TPY). By using such a relation, we can assess the maturities of all kinds of source rocks during the artificial maturation. It is also noted that by using telocolinite vitrinite reflectance as a maturitty parameter, the evolution and oil generation behaviors of source rock exhibited in artificial maturation are quite similar to those observed in geological condition. Thus , the experimental achievements of artificial maturation can be easily applied in the quantitative assessment of subsurface petroleum generation without any correction.