三维起伏地形下回折波快速走时层析及其静校正应用

杨华臣, 葛大明, 王忠成, 王磊, 袁永祺

Fast first-arrival traveltime tomography of diving waves under rugged surface and its application to static correction

YANG Hua-Chen, GE Da-Ming, WANG Zhong-Cheng, WANG Lei, YUAN Yong-Qi

图7 第1 200炮地震记录 a—原始地震记录;b—高程校正后的地震记录;c—基于水平地表假设的初至走时层析速度模型进行长波长静校正后的地震记录;d—菲涅尔体初至走时层析速度模型进行长波长静校正后的地震记录;e—本文方法建立的速度模型进行长波长静校正后的地震记录

Fig.7 The 1 200th common shot gather a—the original seismic gather;b—the gather with elevation correction;c—the gather with long-wavelength static correction using the model inverted by the first-arrival traveltime inversion based on horizontal observation surface;d—the gather with long-wavelength static correction using the model inverted by the Fresnel first-arrival traveltime tomography;e—the gather with long-wavelength static correction using the model inverted by the proposed method