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根据地球化学资料并引用杨文宽法和洛帕京法对青东凹陷的生油条件进行了探讨,得出以下初步认识:生油层厚度较大,含有机质较丰富,具有一定的生油潜力,但演化程度各不相同。Ek_2演化程度最高,在盆地中心已进入演化的晚期阶段,或称“过成熟”阶段;Es_4次之,已接近生油期尾声,潜力已基本发挥出来;Es_3还未达生油高峰;Es_2至今未进入生油期,尚无液态烃生成。
Based on the geochemical data and Yang Wenkuan and 洛帕 京 法 references, the oil production conditions in the Qing dynasty depression are discussed, and the following preliminary findings are obtained: The crude oil reservoirs are thick with rich organic matter and have certain potential for oil generation. However, The degree of evolution varies. Ek_2 has the highest degree of evolution. In the center of the basin, it has entered the late stage of evolution, or “over maturity.” After Es_4, it has approached the end of the oil-producing period, and its potential has been basically brought into full play. Es_3 has not yet reached the peak of oil production. Not into the oil period, there is no liquid hydrocarbon generation.