The Middle Magdalena Basin is an actively producing region in Colombia, which in recent years has been chosen for development by means of water and steam flooding. However, complex stratigraphy has challenged the development of a detailed reservoir static model. The Tenerife 3C-3D experimental survey was conducted in 2009 as an integrated application (from acquisition design to interpretation) of multicomponent technology to differentiate lithology (sand and clay) in a Colombian field. The Tenerife 3C-3D survey was twice as expensive as conventional surveys in the same region, so a requirement was to evaluate its added value. The acquisition design resulted in a 22.3 km2 survey with a trace density of 480,000 traces/km2. After careful processing, the PP and PS data were jointly inverted for elastic properties. Even though density is the best discriminator for clay volume in this area, it was not possible to obtain a reliable estimate. Density log data were unavailable for all Tenerife wells, and shear sonic was available for only one well. However, it was possible to derive sand and shale probability volumes using the output elastic attributes from PP and PS joint inversion.

Geoscientists commonly focus on Tertiary units to understand the Andean uplift and deformation of the eastern Cordillera of Colombia, whereas the Cretaceous evolution remains poorly known. Cretaceous units are exposed in western Eastern Cordillera, but outcrops are scarce in the Middle Magdalena Valley. Recent seismic acquisition programs and new wells drilled through the Cretaceous succession led to a better understanding of unconformities and sequences in both the Middle Magdalena Valley and the western flank of the Eastern Cordillera.This paper identifies unconformities bounding seismic sequences and deciphers Cretaceous structural deformation in the Middle Magdalena Valley and western Eastern Cordillera based on the interpretation of sizable seismic reflection sections and well information. The analysis of sedimentary sequences and unconformity surfaces allowed identification of stages of pre-Eocene deformation. Regional correlations of sequences and unconformities recognized here with those identified by other authors support the occurrence of Cretaceous regional tectonic events.

Middle Magdalena Basin is an active producing region in Colombia, that in last years has been chosen to be developed by water and steam flooding. However complex stratigraphy has prevented to have detailed reservoir static models. Tenerife 3D3C experiment was conducted in 2009 as a first integral (from acquisition design to interpretation) application of multicomponent technology to discriminate lithology (sand and clays) in a Colombian field. Acquisition design resulted in a 480.000 traces/Km 2 density, 22.3 Km 2 survey. Petrophysics showed that density is the best V clay discriminant so the main objective was to obtain a good density estimation from surface seismic. Density from PP+PS joint inversion was more detailed and stable than density derived from PP simultaneous inversion and is currently guiding the location of new wells in the oilfield.