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Wave equation migration imaging gives clearer sub-salt definition01 Feb 2010 | Source: http://www.engineerlive.com/
A novel seismic imaging technique which can penetrate difficult geologies such as salt formations could raise the Gulf of Mexico to a whole new level of exploration importance. Sean Ottewell reports. Wave equation migration (WEM) is a technique that takes into account the multiple arrivals of seismic waves in the sub-surface. As such, it overcomes the limitations of standard Kirchhoff pre-stack depth migration (PSDM) which only takes into account the first arrival of seismic waves.
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