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陆上噪声检测或三维VSP数据处理常常需要用到震源静校正。由于静校正对最终成像的影响,精确的近地表速度模型和静校正的确定是非常关键的,特别在沙特这样的沙漠地区。对于变井源距VSP处理中的静校正,一个常见的方法是应用来自于地表地震测量的基准面静校正和来自于VSP初至时间的剩余静校正。剩余静校正法是基于在共接收点道集中(假设地下是零倾角)用对称多项式来拟合初至时间并将这种平滑的曲面看作静校正量来计算。
Onshore noise detection or 3D VSP data processing often requires source static correction. Due to the influence of statics on the final imaging, accurate near-surface velocity modeling and the determination of statics are crucial, especially in deserts like Saudi Arabia. A common method for static correction in variable-distance VSP processing is to apply the datum static correction from surface seismic measurements and the residual static correction from the first arrival of the VSP. The residual statics method is based on fitting the first arrival time with a symmetric polynomial in a total received point gather (assuming a zero dip angle underground) and treating this smoothed surface as a static correction.