CMP参考面的高程含义分析

Elevation Signification of CMP Reference Surface

从静校正量的计算过程和地震资料处理中的静校正过程推导出了由共中心点(CMP)参考面反算其对应高程的计算公式,认为CMP参考面对应用于计算RG时的静校正量的起算点高程的一个平滑面,即CMP参考面有确定的高程含义。在利用地震资料进行构造成图时,应利用叠加速度,找准高程平滑面以进行深度校正。

CMP reference sur face,i.e.a R G line of two dimensional seismic profile,is a time domain reference surfac e induced by two-step correction of seismic data processing.This paper present ed theoretically the formulae for calculating corresponding elevation to common mid-point (CMP)reference surface from the procedure of static correction comp utation of seismic data processing.It is concluded that CMP refer-ence surfac e corresponds to a flattened plane of static correction starting-point elevati on in RG calculation,that is,CMP surface is of a cer-tain elevation signific ation.