Enhancing the Understanding of a Mature Giant Oil Field from the Wellbore to Reservoir Scale

The “Giant Oil Field” has been on production for 29 years and is currently developed using waterflood and more than 350 ERD horizontal wells, spread over 8 different reservoirs. Amongst the complexities of the drilling in a carbonate reservoir, the brown field nature of this mature field, adds a dimension to the difficulties associated with profitable oil extraction.

Developing optimally and understanding those reservoirs present multiple challenges, requiring a multidisciplinary approach to address them.

Therefore, a novel data acquisition plan based on Reservoir Mapping While Drilling Service (RMWD) allowed to bridge the gap and join the reservoir scale information (Surface Seismic, 4D Seismic and Production model) with near-by wellbore information (conventional LWD logs, core and cutting analysis for facies identification).