有多重意思,主要指激发点到最近的检波器组中心的距离,常常分解为两个分量:垂直偏移距,即以直角到排列线的距离;纵偏移距,从激发点在排列线的投影到第一个检波器组中心的距离。
低频的地震道和长偏移距道都是切除的目标。
Low-frequency traces and long-offset traces are typical targets for muting.
结合共偏移距道集地震方法可以给出异常体埋深信息。
Combined with common offset gather method, the depths of abnormality were obtained.
利用分偏移距成像,修正速度场,以达到提高成像精度的目的。
We update the velocity field by separated offset imaging to raise imaging precision.
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