Abstract: Turpan-Hami basin is a coal-bearing and hydrocarbon-rich basin.A lot of oil-gas fields of Jurassic coal-formed hydrocarbon have been discovered in the basin.It is mainly dominated by complex shear structures with various structural styles because the basin was a compressed one with sinistral shear during the geological history.The basement is the Pre-permian strata,and the sedimentary cap-rocks are mainly Mesozoic and Cenozoic.Shuixigou group of Lower to Middle Jurassic is a coal-bearing sequence,and also an important hydrocarbongenerating interval.The Middle Jurassic is the main reservoir interval of coal-formed hydrocarbon,and the brown-red mudstone of the Upper Jurassic becomes the regional cap rocks.The generation and evolution of the coal-formed hydrocarbon are characterized by multiple compounds,early generation and early expulsion of the hydrocarbon,and rich in both oil and gas.The distribution of oil fields is controlled by combined effects of oil-generating depressions,palaeostructures and various deltaic sandbodies.

Key words: Turpan-Hami basin, tectonic evolution, structural characteristics, coal-formed hydrocarbon, oil-gas accumulation

摘要： 哈鲁番-哈密盆地是一个聚煤而又富含油气的盆地,已发现了一系列侏罗系煤成烃油气田.地质历史时期的吐哈盆地是一个压缩盆地,并带有左旋扭动性质,因而盆内以扭动构造居多,构造样式复杂多变.盆地基底为前二叠系,沉积盖层以中、新生界为主体.中下侏罗统是含煤层段,也是重要的生烃层系.中侏罗统是煤成烃的主要储油层段,上侏罗统棕红色泥岩是区域性盖层.煤成烃的形成演化具有多元复合、早生早排、富油富气的特点.生油凹陷、古构造、油源断裂及各种三角洲砂体联合控制了油气田的平面分布.

关键词: 吐鲁番-哈密盆地, 构造演化, 构造特征, 煤成烃, 油气聚集