| 黄土塬地震勘探资料处理技术 |
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| 引用本文： | 柴铭涛.黄土塬地震勘探资料处理技术[J].物探化探计算技术,2007(Z1). |
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| 作者姓名： | 柴铭涛 |
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| 作者单位： | 中国地质大学 北京 中国地质科学院物化探研究所 河北廊坊 |
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| 摘 要： | 黄土塬地区浅层黄土结构疏松,波速低,对地震波的能量吸收严重,高频衰减强烈,导致野外采集的地震资料品质较差,折射波、面波等多种干扰严重。针对该区特点,在资料处理中采用浮动基准面解决静校正问题,运用叠前去噪技术消除折射波、面波等干扰,并通过叠后去噪技术进一步去噪;通过优化处理流程,精选处理参数,使得地震资料信噪比明显提高,获得了较好的成果。
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| 关 键 词： | 黄土塬 静校正 去噪 地震数据处理 |
A DATA PROCESSING TECHNNOQUE APPLIED TO SEISMIC SURVEYS ON LOESS PLATEAU |
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| CHAI Ming-tao.A DATA PROCESSING TECHNNOQUE APPLIED TO SEISMIC SURVEYS ON LOESS PLATEAU[J].Computing Techniques For Geophysical and Geochemical Exploration,2007(Z1). |
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| Authors: | CHAI Ming-tao |
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| Institution: | CHAI Ming-tao1,2 |
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| Abstract: | The loess plateau is characterized by loosened structures in surficial layers with lower velocity and high attenuation of seismic waves, resulting in poor quality of seismic data and strong interferences of refraction and ground roll. In view of the complicated surface conditions, some techniques, such as floating datum for moveout, noise elimination before stacking for removing interferences of refraction and ground roll and noise elimination after stacking for further removing of noises, have been adopted in data processing. Furthermore, the S/N ration has been remarkably improved through optimizing the flow chart and carefully selecting parameters of data processing, with rather good results obtained. |
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| Keywords: | loess plateau moveout noise elimination seismic data processing |
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