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多数北海构造圈闭至少需要一条断层来充当封闭性断层。在北海进行区域研究时，从１０１个勘探目标和２５个油气田中选择了４００多个断层加以分析，这些断层切穿了来自多种沉积环境（海相、海陆过渡相、陆相）碎屑岩沉积层序。本次研究的重点是地质历史时期中可以起到压力或运移遮挡的断层封闭性。通过绘制多种参数，如断层走向、断距、储层厚度、深度、有效厚度与总厚度比值、孔隙度、砂岩有效连通性等与断层封闭性能的关系图，确定各种参数间的分布趋势和相关关系。以预测断层封闭特点、断层分布方向与封闭性之间存在着某种相关关系，断距经过校正到占储层厚度一定比例之后，与断层封闭性之间存在着比例关系，大多数断距大于储层厚度的断层都是封闭性断层。在断层封闭性预测中最有用的参数是断距，有效厚度与总厚度的比伍（净／总）和砂岩有效连通性。本次研究的结论对在北海盆地碎屑岩沉积层序中进行油气勘探和开发时的断层封闭性预测有广泛的适用性，或许也可以应用于其它地区。
Most North Sea structural traps require at least one fault to act as a closed fault. In a regional study of the North Sea, more than 400 faults were selected from 101 exploration targets and 25 oil and gas fields for analysis, which cut through clastics from a variety of sedimentary environments (marine, marine-continental transitional, continental) Sedimentary sequence. The focus of this study is the fault seal that can act as a pressure or migration shelter during geological history. Through drawing a variety of parameters, such as fault strike, fault distance, reservoir thickness, depth, ratio of effective thickness to total thickness, porosity, effective connectivity of sandstone and fault sealing performance, the distribution trend of various parameters And related. In order to predict the characteristics of fault sealing, there is a certain correlation between the fault distribution direction and sealing. After the fault has been corrected to account for a certain percentage of the thickness of the reservoir, there is a proportional relationship with the fault seal. Most of the fault offsets are larger than Faults of reservoir thickness are all closed faults. The most useful parameters in fault sealing prediction are breakage, ratio of effective thickness to total thickness (net / total), and effective sandstone connectivity. The conclusions of this study are broadly applicable to the prediction of fault sealing in the exploration and development of oil and gas in the sedimentary sequence of the clastic rocks in the North Sea basin and may also be applied to other areas.