塔里木盆地孔雀河地区复式油气系统

Complex Petroleum System in Kongquehe Area of Tarim Basin

塔里木盆地孔雀河地区主要发育了寒武系—下奥陶统盆地相烃源岩及侏罗系湖沼相烃源岩,并形成多套成油气组合,且局部构造成排成带展布,油气具有多期成藏、破坏的过程。现今的油气藏定型于燕山运动晚期至喜马拉雅运动期,该地区为一逐渐被油气勘探所证实的复式油气系统,位于侏罗系生烃中心和寒武系—下奥陶统二次生烃叠合区的北西向构造带具有较大的勘探潜力。

The basinal source rocks of Cambro-Lower Ordovician and Jurassic limnetic source rocks occurred in Kongquehe area of Tarim basin appear in form of multiple oil-gas assemblages and zonal distribution of local structures,with process of multi-stage hydrocarbon accumulations and deconstructions.The existing reservoirs were shaped in period of Late Yanshanian and Himalayan movements.The complex petroleum system is proved by continuously exploratory results.The study shows that the structural belts in N-W trend situated in hydrocarbon-generated center of Jurassic and secondary hydrocarbon-generated superimposed area of Campro-Lower Ordovician possess greater potentials for petroleum exploration.