中南段侏罗系和白垩系的油属于偏腐殖型成熟原油，来自乌尔禾组烃源岩。
Oil of Jurassic and Cretaceous stratum in South central section comes from Wuerhe hydrocarbon source rock, and belongs to the mature crude oil.
说明南段深层是乌尔禾组和风城组成熟油气以及风城组高熟油气的有利勘探区。
That in deep south is favorable exploration areas in Urho group and Fengchen group mature hydrocarbon and Fengchen group high mature hydrocarbon.
准噶尔盆地西北缘二叠系乌尔禾组地层是既有烃源岩又有储集岩的复合含油气系统。
The Permian Wuerhe Formation in the northwest margin of Junggar Basin is a complex petroleum system with both source rocks and reservoir rocks.
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