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在煤田地震勘探中,地形的起伏以及低速带厚度和速度的变化造成反射波旅行时的畸变,严重影响了地震资料的处理结果质量。因此,开展煤田地震资料静校正方法的研究,对于提高地震勘探成功率、降低勘探风险和节约勘探成本有着重要的意义。本文利用石油地震资料处理中的层析静校正技术,有效的解决了复杂地区煤田三维地震勘探静校正难的问题,提高了分辨率和信噪比。实例证明,该技术在煤田地质领域中的利用是有效的、也是可行的。
In coalfield seismic exploration, the fluctuation of terrain and the change of velocity and velocity in low speed zone caused the distortion of reflected wave travel, which seriously affected the quality of seismic data processing results. Therefore, carrying out research on static correction of coalfield seismic data is of great significance for improving the success rate of seismic exploration, reducing exploration risk and saving exploration cost. In this paper, the technique of chromatography static correction in petroleum seismic data processing is used to effectively solve the problem of static correction of 3D seismic exploration in coalfields in complicated areas and improve the resolution and signal-to-noise ratio. The example shows that the technology is effective and feasible in the field of coalfield geology.