科研之友
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摘要
The petroleum migration times of Kuche Depression in Tarim Basin and Qianwei area of the southwest Sichuan Basin were determined using petrologic records of oil reservoir. The forming times of reservoir corrosion and diagenetic clay minerals, as well as the diagenetic evolution indicated that the Mesozoic reservoir in Kuche Depression received three charges in the Late Paleogene, Late Kangcun Age of Neogene, and Kuche Age of Neogene. The analysis of the diagenetic evolution of reservoir showed that the reservoir in Lower Triassic Jialingjiang Formation received charges in the Late Leikoupo Age of the Middle Triassic. These results are in good agreement with those solutions obtained by geochemical approaches (e.g. fluid inclusion analysis), which supports that the determination method for oil-gas migration times with reservoir petrology is eligible.
