本文在松辽盆地滨北地区黑鱼泡凹陷内的断裂特征认识的基础上,选择了8条有代表性的断裂,应用逻辑信息法对其封闭性进行了分析。其结果是:凹陷内断层的封闭性程度多属中等和差级;对于T_(2-2)和T_(06)层,凹陷内断层封闭性北部比中部和南部要好;T_(2-2)层北部和南部比中部好;T2层北部相对好些。总体上看,北部断层的封闭性比南部的稍好,中部比较差。 Based on the understanding of the fracture characteristics in the blackfish depression in the Binbei area, Songliao Basin, eight representative fractures were selected and their closure was analyzed by logical information method. As a result, the faults in the depression are mostly of medium and poor sealing degree. For the faults T_ (2-2) and T_ (06), the faults in the north of the depression are better than those in the middle and the south. T_ (2-2) The north and south of the layer are better than the middle; the north of T2 is relatively better. In general, the faults in the northern part of the fault have a slightly better closure than the south and the middle part is relatively poor.