FOCUS折射静校正技术在准噶尔盆地腹部沙漠地区中的应用
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摘要
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.
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.
引文
[1]陆基孟.地震勘探原理[M].北京:石油大学出版社,1993.
[2]熊翥.地震数据处理方法系统思维[M].北京:石油工业出版社,1995.
[3]陈广思.相对折射静校正方法[J].石油地球物理勘探,1990,25(4):407-428.
[4]许亚军,徐子伯.塔里木复杂地表区静校正问题的处理方法及效果[J].石油地球物理勘探,1996,31(4):483-494.
[5]刘治凡.基于浮动基准面的两步法静校正[J].石油物探,1998,37(1):136-142.
[2]熊翥.地震数据处理方法系统思维[M].北京:石油工业出版社,1995.
[3]陈广思.相对折射静校正方法[J].石油地球物理勘探,1990,25(4):407-428.
[4]许亚军,徐子伯.塔里木复杂地表区静校正问题的处理方法及效果[J].石油地球物理勘探,1996,31(4):483-494.
[5]刘治凡.基于浮动基准面的两步法静校正[J].石油物探,1998,37(1):136-142.
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