Abstract: This paper analyzes the formation of sealing of a fault and the geology appearance it reflects, by means of a statistical technique. By summarizing the parameters or criteria for an estimation of the degree of fault sealing, a statical predicting model for the estimation of the sealing of a fault in an early stage exploratory region has been established by information lojic technique. By an analysis and examination of this model, it is proved that estimation of fault sealing using the object weight technique is simple and practical. It is applied to the study of the evaluation of sealing of the main fault in Tang Yuan fault depression, and predicts sealing of the fault in thisarea.

摘要： 本文分析了断层封闭性的形成条件及其所反映的地质现象,从统计角度总结了评价断层封闭性的参数或标志,应用逻辑信息法建立了早期勘探区断层封闭程度的统计预测模型。在对模型进行检验和分析后,证明用对象权值的大小可以评价断层的封闭性。应用此模型研究了汤原断陷主要断层封闭性演化史预测了该区断层对油气的遮挡作用.

关键词: 初探, 勘探区, 断层, 构造特征, 参数, 统计分析