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基于对差异演化导致显微组分“分期生油”和“早生早排”是煤成油得以有效聚集的先决条件之一的认识 ,在对成烃演化过程中三塘湖盆地侏罗纪煤系有机岩物理性质变化的研究基础上 ,探讨了其煤成油的初次运移机理 .有机岩的脱水作用与煤成油的排驱不存在较佳的时间耦合 ,依靠内在水分排出携带的水溶形式运移是不现实的 .而在过压作用下有机岩中连续的“沥青网络”形成机制和较早的初次运移历史可能是产生三塘湖盆地侏罗系煤成油的必要条件
Based on the differential evolution led to the microscopic composition of “staged oil” and “early” as early as the pre-oil formation of coal is one of the prerequisites for effective accumulation of hydrocarbon generation evolution in the Santanghu Basin, Jurassic coal measures organic On the basis of the study on the change of physical properties of rocks, the primary migration mechanism of oil-forming into coal is discussed.The dehydration of organic rocks does not have a good time coupling with the formation of coal-formed oil and depends on the water-soluble transport It is unrealistic to move it.The continuous formation of “bitumen network” and the earlier initial migration history of organic rocks under the overpressure may be the necessary conditions for generating Jurassic coal into the Santanghu Basin