交互闭合差校正方法
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摘要
在二维地震测网中的每条测线，可能是在不同条件下进行资料采集和处理的，从而在相交测线的地震剖面交点上，导致同一反射层的同相轴间存在着时间和波形的差别，给资料解释和进一步处理带来困难（如二维资料内插成三维资料）。本文根据不同测线的特点，提出了交互闭合差校正方法。该法同时求取不同测线的校正算子，对交点闭合差作时变和空变时间差校正及波形校正。显示功能可随时为用户提供闭合差分布情况，整个交互过程简单、灵活，最后提供的交点闭合差精度可以满足地震资料解释成图的要求。
Different sections in a 2-D seismic grid may be obtained under different conditions of data acquisition and data processing,so that time and waveform differences often occur between the same seismic horizons in two intersecting sections. Consequently,troubles arise in data interpretation and further data processing,such as 2D seismic data being interpolated into 3-D seismic data.A method for interactive mis-tie correction is put forward to cope with different properties of different seismic lines. In the method,correction operators of different lines are simultaneously computed to make time-depedent and space-depedent corrections of mis-ties and waveforms at intersecting points of corresponding seismic horizons. The mis-tie distributions can be displayed at any time you want. The interactive process is easy and nimble. The final mis-tie accuracy satisfies the requirement of seismic interpretation mapping.
Different sections in a 2-D seismic grid may be obtained under different conditions of data acquisition and data processing,so that time and waveform differences often occur between the same seismic horizons in two intersecting sections. Consequently,troubles arise in data interpretation and further data processing,such as 2D seismic data being interpolated into 3-D seismic data.A method for interactive mis-tie correction is put forward to cope with different properties of different seismic lines. In the method,correction operators of different lines are simultaneously computed to make time-depedent and space-depedent corrections of mis-ties and waveforms at intersecting points of corresponding seismic horizons. The mis-tie distributions can be displayed at any time you want. The interactive process is easy and nimble. The final mis-tie accuracy satisfies the requirement of seismic interpretation mapping.
引文
1Harper M D.Seismic mis-tie resolution technique.Geophysics,1991,56(11):1825～1830
2 Henry等.震源子波均衡和闭合差调整的线性化联合反演,SEG北京国际会议论文摘要,1989
2 Henry等.震源子波均衡和闭合差调整的线性化联合反演,SEG北京国际会议论文摘要,1989
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