地震处理新方法——共聚焦点技术
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摘要
共聚集点 (CFP)叠加成像方法以算子驱动代替模型驱动 ,以算子修正代替速度修正 ,可以避免叠前深度偏移对速度模型的要求太高 ,速度模型修正比较困难的问题 ,适用于复杂地表地质条件下的构造成像处理。论述了两次聚焦成像的原理 ,讨论了聚焦算子的修改方法 ,并给出了一个理论模型试算结果及CFP的其他应用。
With operator-driven replacing model-driven,operator-update replacing velocity-update,the common focusing point(CFP)imaging method could avoid problems of strict requirements for velocity model and difficulties in velocity model updating in prestack depth migration process.CFP approach is suitable for imaging in complex near surface geology.In this article,the author made a description of the double focusing imaging method,discussed the updating method of focusing operator,the results of theoretical model test and listed the other applications of the CFP technology.
With operator-driven replacing model-driven,operator-update replacing velocity-update,the common focusing point(CFP)imaging method could avoid problems of strict requirements for velocity model and difficulties in velocity model updating in prestack depth migration process.CFP approach is suitable for imaging in complex near surface geology.In this article,the author made a description of the double focusing imaging method,discussed the updating method of focusing operator,the results of theoretical model test and listed the other applications of the CFP technology.
引文
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