Abstract:Based on a simple two-layered marine model,the paper seeks a solution of marine seismic wavefield formed by the source in water when frictional drag of sea-bottom can be neglected,gives a receiving character on sea-bottom mufti-component receiver and obtains the- oretic sea-bottom mufti-component records from source in water by Fourier method. The test example shows that there is sonic interference such as direct arrival,ghost wave and respective water column reverberation in sea-bottom pressure component and vertical component and the sonic interference has opposite phase in these two components so that can be easily compressed.There is not above-mentioned sonic interference in radial horizontal sea-bottom component if frictional drag of sea-bottom is feeble or tends to zero,otherwise (strang frictional drag of sea-bottom),these interference may exist.
王维佳. 海底多分量中的直达波、鬼波及水柱混响[J]. 石油地球物理勘探, 2001, 36(1): 72-77.
Wang Weijia. Direct arrival,ghost wave and water column reverberation on sea-bottom mufti-component data. OGP, 2001, 36(1): 72-77.