Abstract：Taking2.D seismic data from deep-sea streamer in Qiongdongnan basin as an example and according to existed problems of data from deep-sea streamer, we partition bin according to the method the geometry defined and use 3D seismic data processing flow to successfully solve the following issues: stack without in-phase and migrated image smearing resulted from streamer feathering;2.first shaping airgun wavelet to minimum phase then deconvolution improving the effects of deconvolution; ③applying noise attenuation technique of maximum entropy stack in prestack gathers to eliminate low-frequency interference by rising waves; ④using water bottom library to carry out predictive deconvolution, which effectively suppresses sea-bottom multiple at near-offsets traces; ⑤finding out effective imaging approach,Using above mentioned methods for processing of real seismic data in Qiongdongna basin showed that in comparison with former ordinary processed data, the quality of seismic data have been greatly improved.
