关键词: 准噶尔盆地南缘, 褶皱冲断带, 断裂, 输导系数, 输导效率, 评价, 原油

Abstract: To evaluate crude oil transporting efficiency through fault at the fold-thrust belt in southern margin of Junggar Basin, an evaluating method on crude oil transporting efficiency through fault is established by defining fault transporting coefficient and analyzing effectiveness of crude oil accumulating process. Evaluating consequence indicates that fault transporting coefficient are banding distribution along the fold-thrust belt, and fault transporting districts with high efficiency are major Tuositai anticline, Dushanzi anticline, Anjihai anticline, Huoerguosi anticline and it’s southern areas, Tugulu anticline, Qingshuihe fault nose and Qigu anticline. In the fault transporting districts with high efficiency, the fault transporting efficiency is greatest at the first structural belt, and is secondary at the second structural belt, and is least at the third structural belt.The Dushanzi oilfield, Huoerguosi oilfield, Tugulu oilfield, Qigu oilfield and so on, are all located in the fault transporting districts with high efficiency, which indicates fault transporting with high efficiency is one of the significant condition of crude oil accumulation at the fold-thrust belt in southern margin of Junggar Basin.

Key words: the southern margin of Junggar Basin, the fold-thrust belt, fault, transporting coefficient, transporting efficiency, evaluate, crude oil