| 基于伪多道匹配法的地震波形一致性校正方法 |
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| 引用本文： | 郭恺,仝兆岐,李振春,吕晓东.基于伪多道匹配法的地震波形一致性校正方法[J].物探与化探,2012(5):821-826. |
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| 作者姓名： | 郭恺 仝兆岐 李振春 吕晓东 |
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| 作者单位： | 中国石油大学地球资源与信息学院;河南油田测井公司 |
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| 摘 要： | 由于在激发、接收和传播过程中受到众多干扰因素的影响，地震反射波形发生畸变，严重影响到叠加剖面的质量，因此，在叠前需要进行波形一致性校正。笔者针对单道匹配法的不足，引入伪多道匹配法，对地震波形的振幅、相位和时间进行高精度一致性校正，并能保持波形保真，提高叠加效果。模型测试和实际数据处理结果证明了本方法的有效性和适应性，在低信噪比资料处理中也可以获得比较好的效果。
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| 关 键 词： | 波形一致性校正 叠加剖面 低信噪比 单道匹配 伪多道匹配 |
WAVEFORM CONSISTENT CORRECTION BASED ON PSEUDOMULTICHANNEL MATCHING METHOD |
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| GUO Kai,TONG Zhao-qi,LI Zhen-chun,LV Xiao-dong.WAVEFORM CONSISTENT CORRECTION BASED ON PSEUDOMULTICHANNEL MATCHING METHOD[J].Geophysical and Geochemical Exploration,2012(5):821-826. |
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| Authors: | GUO Kai TONG Zhao-qi LI Zhen-chun LV Xiao-dong |
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| Institution: | 1.College of Earth Resources and Information,China University of Petroleum,Qingdao 266555,China;2.Henan Well Logging,Nanyang 473132,China) |
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| Abstract: | Because of numerous interference factors in stimulating,receiving and propagating processes,the waveform of the reflected wave is distorted in the data,which will affect the quality of the stacking section.Therefore,waveform correction is the chief factor which should be considered before stacking.This paper brings forward the pseudomultichannel matching method aiming at remedying some defects in the single channel matching method.The proposed method has higher precision in amplitude,phase and travel time,and can acquire good effect in the low signal-to-noise data.In addition,it can gain waveform fidelity and improve the quality of the stacking section.Its validity and applicability have been proved by the processing of seismic data. |
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| Keywords: | waveform consistency correction stacking section low signal-to-noise single channel matching pseudomultichannel matching |
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