二连盆地吉尔嘎朗图凹陷宝饶构造带构造特征及其控藏作用

二连盆地吉尔嘎郎图凹陷宝饶构造带构造复杂，油气富集。宝西、宝中和宝东3个局部构造特征各异，其内发育的滑脱、调节和反转等构造与油气关系极为密切。综合研究结果表明，断层与不整合控制了宝饶构造带的油气运秽与聚集。北西向断层是沟通生烃中心与聚集区的油源断层，为油气运秽提供通道；北东向断层垂直于油气运秽的方向，封闭性强，为油气聚集提供圈闭。不整合面不仅是油气运秽通道，并且为油气聚集提供良好的空间。宝饶构造带的油气横向上主要分布于断层交汇处，纵向上集中分布于腾格尔组。

Structure characteristics and control function of reservoir forming of Baorao structural belt in Jiergalangtu Depression of Erlian Basin

Baorao structural belt lies in Jiergalangtu Depression of Erlian Basin with complex structures and abundant oil and gas. There are different structures in Baoxi, Baozhong and Baodong. Slippage, adjustment and reversed structures developed in Baorao structure belt are closely related to oil and gas. Comprehensive research results show that faults and unconformity control the oil - gas migration and accumulation in Baorao structure belt. The faults whose strike are in northwest direction is the oil -resource ones connecting hydrocarbon generation center and accumulation area, which provides the pathway for the oil -gas migration; the faults whose strike are in northwest direction perpendicular to the oil - gas migration direction have quite good sealing effect to provide traps for the oil - gas accumulation. The unconformity surfaces not only are the pathway of the oil - gas migration,but also provide the good spaces for the oil- gas accumulation. The oil and gas of Baorao structural belt in the lateral mainly distributes in the place where faults intersected , and mainly distributes in Tengge er formation in longitudinal strike.