Abstract:Hydrophones move with the streamers in marine seismic data acquisition.Such movement causes travel time error,which has a negative impact on subsequent data processing and data matching for time-lapse seismic survey.To correct the moveout caused by hydrophone moving,we use offset,vessel speed,and stacking velocity to calculate time-varying travel time error,which is proportional to offset and vessel speed and inverse to the square of stacking velocity.Field data processing shows that after hydrophone moving-related moveout correction,residual moveout in CMP gathers after NMO correction is further reduced,and velocity spectra become more focused.This lays the data foundation for subsequent processing.
Zhou Z Z and Ma G K.Phase-driven deghosting of slanted and horizontal streamer data[C].SEG Technical Program Expanded Abstracts,2016,35:4756-4759.
[3]
Gary H and Helmut J.Effects of source and receiver motion on seismic data[C].SEG Technical Program Expanded Abstracts,1990,9:859-862.
[4]
Eiken O,Haugen G U,Schonewille M,et al.A proven method for acquiring highly repeatable towed streamer seismic data[J].Geophysics,2003,68(4):1303-1309.
[5]
William H D.Marine vibrators and the Doppler effect[J].Geophysics,1988,53(11):1388-1398.
[6]
Schultz P S,Pieprzak A W,Johnson G R,et al.Simple theory for correction of marine vibroseis phase dispersion[C].SEG Technical Program Expanded Abstracts,1989,8:660-662.
[7]
Gary H and Helmut J.The effects of source and receiver motion on seismic data[J].Geophysical Prospecting,1995,43(2):221-244.
[8]
Jan D.The effects of receiver motion on seismic data and velocity analysis[C].SEG Technical Program Expanded Abstracts,2001,20:1890-1893.