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吐哈盆地可划分为煤系与非煤系共存类和非煤系类两大类型及托克逊、台北、哈密,南湖4个油气系统。在煤系与非煤系共存类中,托克逊含油气系统含油圈闭主要形成于白垩纪末期,正与二叠、三叠系烃源岩的生烃高峰中侏罗世~白垩纪相匹配,在断裂伴随垂向短距离运移的条件下聚集成藏;台北油气系统的储油圈闭形成于侏罗纪中后期,中下侏罗统煤系烃源岩早白垩世生烃高峰期和二叠、三叠系烃源岩进入生气期相衔接,构成油气聚集系统;哈密油气圈闭形成于侏罗纪末,与三叠系湖相泥岩烃源岩、中晚侏罗世生烃高峰期相一致,亦可富集成藏。非煤类油气系统虽于中侏罗世及侏罗纪末有二叠、三叠系油气形成,但区域性盖层于白垩纪形成时,已错过二叠系的生烃高峰,且又经历了3次较大的破坏,故不利于油气大量聚集。
Turpan-Hami basin can be divided into coal and non-coal coexistence and non-coal type two types and the Tuokun, Taipei, Hami, Nanhu four oil and gas systems. In coal-bearing and non-coal-bearing coexistence classes, oil-bearing traps in the Tokexian hydrocarbon-bearing system were mainly formed at the end of the Cretaceous and coincided with the mid-Jurassic to Cretaceous phase of the Permo-Triassic hydrocarbon source rock And they accumulate into reservoirs under the condition of vertical and long distance fault migration. The oil trap of the Taipei oil and gas system was formed in the middle and late Jurassic. The Lower Cretaceous coal-bearing source rocks of the Lower Jurassic during the Cretaceous peak generation and Permian and Triassic source rocks join in the gas phase and form a hydrocarbon accumulation system. The Hami hydrocarbon trap was formed at the end of the Jurassic, which is related to the source rocks of Triassic lacustrine mudstone, the mid-late Jurassic hydrocarbon generation peak phase Consistent, can also enrich the accumulation. Although the non-coal-bearing petroleum systems were formed in Permian and Triassic at the end of Middle Jurassic and Late Jurassic, the regional cap rocks have missed the peak of Permian hydrocarbon generation during Cretaceous formation and experienced 3 times greater damage, it is not conducive to a large number of oil and gas gathering.