折射静校正在松辽盆地地震处理中的应用及效果

随着油气勘探的深入和技术的发展,针对松辽盆地存在的地质问题,要求地震数据处理达到高信噪比、高分辨率、高保真度和准确成像,折射静校正是解决这三高一准目标的关键环节,直接影响到成像效果和解释精度。而松辽盆地地表复杂多变,选择合适的折射静校正处理方法和参数,可以取得较好的应用效果。本文从理论入手,介绍了三维折射静校正的实现步骤,并通过在松辽盆地三维地震资料处理中的应用,表明该方法计算速度快、实用性强,较好的解决了松辽盆地复杂地表条件下野外近地表风化层引起的静校正问题,对改善地震剖面质量和提高信噪比是有效的。

Application and Effect of Refraction Static Correction in Seismic Processing in Songliao Basin

With advancement of petroleum exploration in Songliao Basin,the high signal to noise ratio,high resolution,high fidelity and accurate imaging are required in seismic processing,and the refraction static correction is an important part for realizing these requirements,with directly influences the stack effect and interpretation accuracy.The surface of Songliao Basin is complicated and variable,so the better effect can be obtained by using the suitable refraction static correction method.This paper introduced the realizing steps 3-D refraction static correction.After field application,it showed that this method was characterized by fast calculation speed and high practicability,which can improve the seismic profile quality and the single to noise ratio.