Hydrocarbon Generation Process Investigation of Permian and the Low Triassic source rocks on Lower Yangzte region

摘要

On Lower Yangtze region source rocks of Permian and the Lower Triassic activation energy distribution suggests that source rocks experienced some hydrocarbon generation reaction, generally high activation energy mainly because of high maturity, the weighted average activation energy has good positive correlation with maturity. The time of hydrocarbon generation in Huang Qiao area is short, and it's speed is fast; the time in Ju Rong area is longer, characteristics is prone to early and multi-period; source rocks in Chao Hu region been uplifted to surface, the thermal evolution is lowest of all, and the time is longest. Source rocks secondary hydrocarbon generation exists in many area in Lower Yangtze region, the degree of hydrocarbon generation is mainly depend on sedimentary burial history.