This paper reports on the use of a number of novel 3-D seismic interpretation techniques being<br>applied to identify and develop stranded reserves in the Upper Carbonera (C5) fluvio-deltaic channel<br>sands in the Cravo Norte Field complex. Occidental de Colombia, as field operator,<br>acquired a high-fold 3-D in 2005 in part to image these channels. This new data, enhanced by<br>seismic coherency and spectral decomposition processing, allow us to image the spatial<br>distribution and temporal evolution of the channel system and associated facies. The seismic<br>interpretation has been tied to core, wireline and (partially) production data. Qualitative and<br>quantitative seismic geomorphologic techniques are being used to identify the geometries of the<br>channels.


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