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在海上多分量地震勘探中 ,会不可避免地涉及到水平分量检波器的方位确定及其旋转校正问题。特别是当多分量数据采集采用绕圈悬挂式海底电缆系统进行作业时 ,水平分量检波器的方位校正就显得非常关键和重要。针对最复杂的海上多分量地震勘探情况 ,探讨了水平分量检波器随机任意取向情况下的方位校正问题 ,并用三维理论模型记录和实际的海上三维多分量地震数据进行了试算 ,获得了很好的校正结果。
In the marine multi-component seismic exploration, it will inevitably involve the azimuth determination of the horizontal component detector and its rotation correction. Especially when multi-component data acquisition is carried out by the winding suspended submarine cable system, the azimuth correction of the horizontal component detector becomes very critical and important. In view of the most complicated situation of marine multi-component seismic exploration, the azimuth correction problem of horizontal component detector under random and arbitrary orientation is discussed, and the three-dimensional theoretical model record and the actual three-dimensional multi-component seismic data at sea are used for trial calculation. Correction results.