摘要
沙漠地区表层结构较为复杂,静校正问题是难点.利用炮点井深、替换速度、潜水面和地表高程等资料,给出了固定基准面位于地表以上的沙丘曲线静校正量和最小二乘法压实系数的具体计算公式,并与野外测量的静校正量进行对比,从实际资料的单炮和叠加结果可以看出,该方法能够有效解决沙漠地区的长波长静校正问题,且其应用效果要优于野外测量的静校正量,从而能够提高沙漠地区静校正量的计算效率和地震资料的处理精度.
The desert surface＇s structure is complex, and the difficulty is the static problem. With information of shot point well depth, replacement velocity, ground water plane and surface elevation, and so on, the paper proposes a sand dune curve static computational equation with fixed datum above the surface and compaction coefficient computational equation by the least square method, and carries out comparison with the field measuring statics, it sees from single shot and stack section that the proposed method can effectively solve the long wavelength statics in the desert area, and its application result is better than with the field measuring statics, thus it can improve the static＇ s computational efficiency and the seismic data processing accuracy in the desert area.
出处
《矿业工程研究》
2011年第4期53-57,共5页
Mineral Engineering Research
基金
国家重点基础研究发展计划(973)资助项目(2009CB219307)
