FOCUS折射静校正技术在准噶尔盆地腹部沙漠地区中的应用

THE APPLICATION OF FOCUS REFLECTION STATIC CORRECTION METHOD IN DESERT AREA OF MIDDLE OF JUNGGAR BASIN

准噶尔盆地腹部沙漠地区低降速带厚度和地表沙丘起伏较大,静校正问题突出.FOCUS折射静校正技术结合微测井解释成果能较好地解决陆西高分辨率攻关二维LH200602的静校正问题,相比准噶尔盆地地震勘探中通常使用的绿山折射静校正软件,FOCUS折射静校正技术无需进行数据格式转换和重新定义观测系统,工作效率高,为该区解决静校正问题提供了另一种可行方法.

In desert area of middle of Junggar basin, low velocity layer thickness and surface dune elevation vary largely, which causes static correction problems very prominent. In this paper, FOCUS reflection static correction method combined with micro-well logging results is applied to 2D high resolution seismic line LH200602 and achieves good results. Compared with commonly used reflection static correction software （Green Mountain） in Junggar basin seismic exploration, FOCUS reflection static correction method does not need data format transformation and geometry redefinition, so its working efficiency is higher and it also can provide an optional method to resolve static correction problems in this area.