Broadband marine data require new processing techniques

摘要

Variable-depth streamer data require algorithmic modifications to improve demultiple effectiveness. Processing variable-depth streamer acquisition has recently become possible with a new joint deconvolution algorithm. In this particular acquisition, using variable-depth broadband streamers, the receiver depth regularly increases with offset, which allows a wide diversity of receiver ghosts and dramatically increases the possible frequency bandwidth in both low and high frequencies from 2.5 Hz to source notch. Compared to conventional flat streamer data, processing broadband data requires a major change since the receiver ghosts are rigorously taken into account.