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姬塬地区位于鄂尔多斯盆地中南部黄土塬区,地形起伏较大,低降速带厚度速度变化大,因此剩余静校正的好坏直接决定着剖面的成像精度。而非纵资料又因其缺少近偏移距信息,常规的剩余静校正方法有时会出现错位问题,本文利用CGG处理系统下新研发的基于反射波的剩余静校正模块,从原理出发,通过对实际资料的处理,分析成像效果,总结出适合于该工区的技术方法,提高成像精度。
The Jiyuan area is located in the loess plateau in south-central Erdos Basin, with a large topography fluctuation and a large velocity variation in the low-down-velocity zone. Therefore, the accuracy of the residual static correction directly determines the imaging accuracy of the section. Because of the lack of near-offset information, the conventional residual statics method sometimes has the problem of misalignment. In this paper, a new static refraction-based residual statics module developed under the CGG processing system is used. Based on the principle, The actual data processing, analysis of imaging results, summed up the technical methods suitable for the work area to improve imaging accuracy.