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断层两侧地层的配置关系，直接影响断层面的封堵性质及油气的聚集。利用三维地震资料可以研究断层面封堵性质。本文的做法是，先用三维地震垂直剖面和水平切片对断层进行闭合，然后将断层面作垂直和水平方向的投影，获得断层上、下盘的振幅剖面及振幅切片；再根据钻井资料及合成记录，对振幅剖面及振幅切片进行岩性解释，获得相应的岩性剖面和岩性切片。最后，将断层上、下盘的岩性剖面相叠合，即可得到断层面的封堵性质剖面。在南阳凹陷张店油田断裂构造中，用上述方法研究断层面封堵取得了很好的地质效果。
The disposition of strata on both sides of the fault has a direct impact on the plugging properties of the fault plane and the accumulation of oil and gas. The use of 3D seismic data can study fault sealing properties. In this paper, the vertical and horizontal projection of the fault plane is used to close the fault with the vertical section and the horizontal slice of 3D seismic, then the amplitude section and the amplitude section of the upper and lower fault are obtained. According to the drilling data and the synthetic Record, interpret the lithology profile of the amplitude profile and the amplitude slice, and obtain the corresponding lithology profile and lithology slice. Finally, the fault sections of the fault planes can be obtained by superimposing the lithologic sections of the upper and lower faults. In the fault structure of Zhangdian Oilfield in Nanyang Depression, the above method has been applied to study fault sealing and achieved good geological results.