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在分析研究了准噶尔盆地腹部主要烃源岩特征、分布及其油气运移规律的基础上,指出了不同类型烃源岩生烃凹陷控制着其所生成油气的分布范围:中央隆起以南为侏罗系油气主要分布区;以北为二叠系油气主要分布区;中央隆起则为二者共存区。准噶尔盆地腹部油气藏的形成具有“双源多期”的成藏特点,决定了本区具有深、浅两套主要含油气系统;浅部含油气系统可形成侏罗系自生自储的煤成油气藏和古生新储的以二叠系油气为主的次生油气藏;深部含油气系统主要聚集二叠系烃源岩所生成的油气。
Based on the analysis of the characteristics, distribution and hydrocarbon migration of major source rocks in the abdomen of Junggar Basin, it is pointed out that the hydrocarbon generation depression of different types of source rocks controls the distribution of hydrocarbon generated by them: south of central uplift is Jurassic Department of oil and gas distribution area; to the north Permian oil and gas distribution area; the central uplift is the coexistence of the two areas. The formation of the belly reservoirs in the Junggar Basin has the characteristics of “double source and multi-period” and determines that there are two major oil and gas systems in the area, the shallow petroleum system can form Jurassic coal-derived coal The reservoirs and Paleozoic reservoirs are mainly Permian oil and gas reservoirs. The deep petroleum systems mainly accumulate hydrocarbons generated from Permian hydrocarbon source rocks.