无组合检波采集方法的三维地震波数值模拟研究

采用传统的检波器组合地震采集技术在中国西部一些复杂山地地区的效果不理想。能否仍采用无组合检波地震采集方法呢?本文采用非均匀介质三维一阶压力一速度标量波动方程交错网格高阶有限差分法进行了三维正弦形山地模型声波模拟，并通过对模拟记录进行室内不同组合和叠加处理，结果表明该法不但可以灵活、方便地实现检波道组合，有效地压制干扰波，而且可以得到最佳的叠加剖面。无组合检波地震采集技术有可能是解决复杂山地地震采集难题的一条有效途径。

Study on acquisition methods without geophone array by numeric modeling of 3D seismic wavefield

Using traditional geophone array technique for seismic acquisition leads to unsuccessful results in some complicated mountain areas of west China.Is it possible yet to use non geophone array for seismic acquisition? The paper uses staggering grid high order limit difference method of 3D first order scalar press-velocity wave equation in non homogeneous medium for 3D acoustic simulation of sin mountainous model,and different array in door and stack processing is carried out for the modeling records,the results show that the method not only can flexibly and conveniently finish geophone array aimed at effectively suppressing interference,but also can obtain optimum stack sections.It is possible that the seismic acquisition technique without geophone array can be an effective way to solve the problem of seismic acquisition in complicated mountain areas.