地震资料品质定量分析和采集参数优选
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摘要
地震资料品质定量分析和地震采集参数优选对于确保地震采集质量和提高施工效率极为重要。BGP在多年的勘探实践过程中,研究并开发了一系列原始地震资料品质定量分析和地震采集参数优选技术,本文对此作了简要介绍与总结,包括基于RMS振幅定量估算的环境噪声和资料品质监控,基于相关原理的原始记录信噪比估算方法,基于振幅指数衰减模型的地震记录质量监控技术,线性噪声分离与原始地震记录品质分析,基于频谱整形的地震记录品质分析和参数优选等。本文介绍的一些技术和方法在实际地震采集过程中为控制地震采集资料品质和参数的优选发挥了较好的作用。
Quantitative analysis of seismic data quality and optimization of acquisition parameters is very important for ensuring seismic acquisition quality and improving operational efficiency. During many years' practice of exploration, BGP has studied and developed a series of quantitative analysis of raw seismic data quality and optimization of seismic acquisition parameters, for which the paper made a brief introduction and summary, including RMS amplitude quantitative estimation-based environmental noise and data QC, correlation principle-based raw record S/N ratio estimation, amplitude exponential attenuation model-based seismic record QC, linear noise separation and raw seismic record QC, spectrum shaping-based seismic record QC and parameters optimization. The techniques and methods introduced in the paper play better role in seismic acquisition data QC and parameters optimization during the seismic data acquisition.
Quantitative analysis of seismic data quality and optimization of acquisition parameters is very important for ensuring seismic acquisition quality and improving operational efficiency. During many years' practice of exploration, BGP has studied and developed a series of quantitative analysis of raw seismic data quality and optimization of seismic acquisition parameters, for which the paper made a brief introduction and summary, including RMS amplitude quantitative estimation-based environmental noise and data QC, correlation principle-based raw record S/N ratio estimation, amplitude exponential attenuation model-based seismic record QC, linear noise separation and raw seismic record QC, spectrum shaping-based seismic record QC and parameters optimization. The techniques and methods introduced in the paper play better role in seismic acquisition data QC and parameters optimization during the seismic data acquisition.
引文
[1]程乾生.信号数字处理的数学原理.北京:石油工业出版社,1979
[2]Antonia P S.Applications in Ti me-Frequency SignalProcessing.CRC Press,2003
[3]SERCEL.408UL User manual V7.1.2003
[4]Bibhu P D et al.Determination of signal and noise sta-tistics using correlation theory.Geophysics,1990,55(1)
[2]Antonia P S.Applications in Ti me-Frequency SignalProcessing.CRC Press,2003
[3]SERCEL.408UL User manual V7.1.2003
[4]Bibhu P D et al.Determination of signal and noise sta-tistics using correlation theory.Geophysics,1990,55(1)
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