Resumen de Modelización 3D combinando los "software" gOcad y gOsed en dos sistemas turbidíticos del Grupo de Hecho: sistemas Banastón y Morillo (cuenca eocena surpirenaica central)
Eduard Remacha Grau, Richard Labourdette, Ferran Climent i Costa, F. Bolaño, Philippe Crumeyrolle, Oriol Oms Llobet, Gemma Gual Durán
Classical facies models derived from outcrop studies are generally focused on depositional processes and generally don't link precisely the lateral variability of facies with the internal 3D architecture of sandy reservoirs. Facies are still commonly described independently from 3D seismic architecture in a stamp like collection approach. As a consequence the reserarch program sponsored by Total aimed to the study of the Ainsa basin outcrops to represent and understand the 3D geometrical architecture of the infill of several channelised turbidite reservoirs in relation with lateral facies variability. The work is particularly focused on the Banastón, Ainsa and Morillo turbidite systems, with the examples here repported taking the Banastón and the Morillo System. The architectural model was built using the gOsed software within the gOcad software modelling environment.
The final product is a field scale continuous gridded model with various size cells, which can be compared with the real small-scale geological observations made on the field. Outcrop geology can be compared with the coarse grid numerical model using 3D numerical orthophotos. The sedimentary modelling of the Ainsa basin provides a unique 3D model allowing interactive field trips for sedimentologist, reservoir engineers and geophysicists.
