A Novel Workflow for 3D Integration of Geological and Geophysical Heterogeneity Signatures at Reservoir Scale

The main focus of the workflow is to exploit a methodology that can be used to enhance the importance of geology in constructing realistic reservoir models and validate industry-standard geomodels both for hydrocarbon exploration and production. Reservoir characterization is enhanced by means of a geology-driven tool, allowing us to model the high frequency information content of the seismic signal. Composite mosaics of geological analogues are used to derive realistic acoustic impedances from plausible geological scenarios. Synthetic seismic generated from hypothetical wellbores can be used to calibrate the spatial variations of subsurface properties. The method is tested on a North Sea turbidite field. Integrating geological and geophysical information from wells and composite analogues, in order to portray the heterogeneity of reservoirs, both at seismic and sub-seismic scales, is of fundamental importance for the forecasting of future hydrocarbon production.