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Studying a Spatially Variant Deghost Technique for Conventional Streamer DataNormal access

Authors: J.H. Yu, M. Smith and N. Shah
Event name: 76th EAGE Conference and Exhibition 2014
Session: Broad Band Acquisition and Processing
Publication date: 16 June 2014
DOI: 10.3997/2214-4609.20141231
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.1Mb )
Price: € 20

Summary:
In this paper, we present a spatially variant deghost technique to eliminate the ghost effect and recover the lost high frequency data for marine deep-towed streamer data acquired at a constant depth. Besides appraising the deghost effectiveness, we validate this deghost technique by comparing the result of a broadband-processed deep-towed streamer 2D line with a nearby shallow-towed streamer 2D line acquired at a shallower constant depth as well as evaluating the similarity and difference of their subsurface image, seismic resolution and phase. Furthermore, the technique is tested with premigration, prestack, and poststack applications to judge its usefulness and robustness. The assessment of this study demonstrates its effectiveness and versatility for vintage and new marine streamer seismic data.


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