A full wave form acoustics tool is a very high frequency geophysical tool, for imaging near borehole structure with an investigation of several meters. We have built a 3-dimensional real scale model, with a substratum made of concrete (the model is composed of 3 zones, figure 1). The borehole profile can be modified. For an horizontal borehole profile, the substratum'is parallel to the borehole in zone 1. It has a 1 .2° dip in zone 2, and a 4 .9° dip at the beginring of zone 3. At the end of this zone, it is parallel to the borehole. The reservoir layer is made of concrete in zone 1. Zones 2 and 3 can be filled with different types of material (i .e . sand) to simulate different types of reservoir layers .


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