3D AVO is one of the emerging seismic technologies that is now being used more and more, as a tool for hydrocarbon<br>exploration and field development. A key component of this technology is the 3D pre-stack processing for AVO. The<br>improvements made in the past few years in preserving the seismic amplitudes in the 3D pre-stack processing sequence<br>give more confidence in the resultant AVO analysis. The purpose of this paper is to illustrate the effects of a carefully<br>executed 3D AVO processing on a data set acquired by Schlumberger Geco–Prakla over a High Island prospect in the<br>Gulf of Mexico. The results of this 3D AVO processing and analyses were confirmed by the drilling of a successful<br>discovery well.


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