The correlation of oil-oil indicated that the oil can be devided into three species at least; The correlation of oil-source rock indicated that there are three sets of source rock, namely Cambrian-Ordovician, Carboniferous-Permian and Jurassic system.

• 油－油对比表明原油至少可分为三类；油－源对比表明有三套烃源岩，即寒武－奥陶系、石炭－二叠系和侏罗系生油岩。