Revealing pre-carbonate reservoirs using advanced modelling and imaging methods

Reprocessing of available seismic dataset using high-end processing technology was seen to be the most economical solution for search of deeper, pre-carbonate targets in a marginal field. The vintage data suffered from amplitude loss due to absorption by gas bodies and carbonate layers causing poor reflector continuity especially at target zone. Removal of noise and multiples beneath the carbonate layer was also essential to image the deeper fault systems properly. Even with narrow azimuth and limited offset data, which has illumination issues, current advanced imaging technologies were able to unmask the reservoir.