上元古界下马岭组页岩干酪根的油气生成模拟实验

A SIMULATION EXPERIMENT OF PETROLEUM ORIGIN ON KEROGEN FROM SHALES OF THE LOWER XIAMALIN FORMATION IN THE UPPER PROTEROZOIC

本模拟实验主要对华北上元古界下马岭组页岩干酪根的热演化特征和规律进行研究。实验研究表明,上元古界下马岭组有机质具有某些新的热演化特征;同时,作者根据实验结果,建立了中、上元古界油气生成演化模式,并确定了成熟度的指标界限,为中、上元古界有机质成熟度的划分和油气资源的评价提供了依据。

A simulation experiment was made on kerogen from shales in the lower Xiamalin Formation of the Proterozoic in North China.Certain characteristics and the law of the thermal evolution for the organics from the lower Xiamalin Formation have been revealed in the study.Furthermore, with the basis of experimental results, an evolution model of oil and gas generation for the middle and upper Proterozoic is developed , and the limit of maturity index is marked, which provide the evidences for the determination of organic maturity and the assessment of petroleum resources.