1889年4月17日在波茨坦对远震的成功记录标志着通过地震波方式研究地球结构的开始。
The first recording in Potsdam of such teleseisms on April 17, 1889 marks the birth of the study of the structure of the Earth by means of seismic waves ( see blog January 14, 2009).
近炮检距处地震波的衰减较之远炮检距的相应衰减量更能准确反映地层的岩性信息。
The attenuation of seismic wave in near offset can more correctly reflect the lithologic information of formation than that in far offset.
对于层状介质，油藏变化前后的地震波传播路经比较复杂，其激发点和接受点发生了变化，要想用叠前远偏移距数据直接计算垂直时差比较困难。
But to layered strata, the seismic wave path is complicated when reservoir changes, and it is difficult to directly define vertical time difference by pre stack far offset seismic data.
应用推荐