摘要
在OBC地震数据采集过程中,潮汐变化会引起激发点和接收点的高程变化,进而带来复杂的潮汐校正问题。对于常规OBC地震勘探,目前一般采用潮汐表信息或验潮仪数据进行潮汐静校正。但随着海上油气勘探对精度要求的不断提高,采用潮汐表信息或验潮仪数据进行潮汐校正已不能满足需要。为此,本文提出了利用星站差分系统实测高程进行高精度潮汐校正的方法,并在实际勘探中取得明显效果。
During seismic OBC prospecting,tide correction is always a complex problem since tide differences cause elevation changes of receiver &source points.For the conventional OBC,tide corrections are based on tide table data or tide gauge data.However,this approach cannot meet fidelity requirements of high precision seismic prospecting.We present in this paper a method for tide correction based on real time elevations recorded by DGPS system.Pilot applications have proved that the proposed approach is effective and reliable.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2014年第A01期1-4,共4页
Oil Geophysical Prospecting
