In this paper we present the results obtained from a cross-well seismic tomography experiment carried out in an oil producing field of the West Permian Basin, Texas, U.S.A.

Three fundamental stages can be identified from the tomographic method: Field data acquisition, data conditioning, and the actual tomographic process including forward modeling and inversion. For our case, we present a synopsis of each.

The resulting Vp and Vs tomograms show a clear separation of high and low velocity zones that are in agreement with sonic logs. From the final tomograms, we computed images of Vp/Vs ratio, Poisson ratio, porosity and density using well known empirical formulas.

The results attained from the experiment provide an idea of the potential usefulness of the tomographic method as an alternative for in-field exploration and detailed characterization of hydrocarbon producing reservoirs.

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