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位于班—怒大断裂中的赞—兹断层右行走滑拉分,是伦坡拉盆地形成的动力学机制。盆地的石油地质特征表现为:①现今构造格局具南北分带、东西分块的特点;②牛堡组不仅厚度大,而且分布广,自下而上三段的粒度和颜色还具粗—细—粗和红—黑—红的特点,而丁青湖组不仅粒度细,而且颜色深,厚度小,分布局限;③源岩颜色深、粒度细、厚度大、分布广、有机质类型好、成熟度中等、转化率高;④储集砂体厚度大、分布广,且孔、渗条件好;⑤油气显示类型多、分布广,原油密度较大,粘度较低,高蜡低硫,后生变化强烈
The Zanziz fault right-lateral strike-slip subdivision located in the Ban-Ang large fault is a dynamic mechanism formed in the Lunpola Basin. The petroleum geological features of the basin are as follows: (1) The current tectonic setting has the characteristics of north-south zoning and east-west division; (2) Niubebao Formation is not only thick and widely distributed, but also has coarse and thin grain and color in the bottom three sections - coarse and red - black - red, and the Dingqinghu Formation is not only fine in grain size, but also has deep color, small thickness and limited distribution. ③ The source rock is deep in color and fine in grain size, Medium and high conversion rate; ④The reservoir sand body has a large thickness, wide distribution and good pore and seepage conditions; ⑤The oil and gas show many types and widely distributed, the density of crude oil is high, the viscosity is low, the wax is low, strong