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在进行三维地震勘探的地区已采用了一般地震资料以及地质学的某些知识。这些资料和知识用于设计最佳二维震源接收器排列或观测系统,它们适用于当地的地质条件,记录条件,并且在勘探过程中随着这些条件而变化。设计这种观测系统的工具就是所谓“野外记录特性曲线”,观测系统的参数作为旅行时和反射面倾角的函数,用迭代方式修改观测系统参数和特性曲线,直至获得良好的结果为止,即,可期待来自有意义的反射层面的波成为可解释的同相轴而只化费最少野外工作量。
General seismic data and some knowledge of geology have been used in the area where 3D seismic exploration is conducted. These materials and knowledge are used to design the best two-dimensional source receiver alignment or observation system that is applicable to local geological conditions, recording conditions, and varies with these conditions during exploration. The tool for designing such an observing system is the so-called “field record characteristic curve”. The parameters of the observing system are used as a function of the travel time and the reflection angle of the reflecting surface to modify the observing system parameters and the characteristic curve iteratively until good results are obtained, Waves from a meaningful reflective layer can be expected to become interpretable events and cost a minimum of field work.