P234 VIRTUAL SOURCES A NEW WAY TO REMOVE OVERBURDEN PROBLEMS. Summary By shooting on the surface with geophones placed in the subsurface under troublesome overburden we can simulate a survey that has very advantageous “Virtual Sources” at the buried geophone locations and is easy to image. This is a way to achieve reproducible data over targets spoiled by heterogeneous scattering and possibly changing overburden. The method allows us to use the full spatial bandwidth of the overburden scattered source energy and achieve near perfect deconvolution for overburden transmission effects. 1 The method has applications for enhanced reservoir characterization and production


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