Water coning in oil reservoirs is a complex phenomenon which poses a problem in the petroleum industry today.The upward movement of water into the production interval has an adverse effect on the production facilities and the total oil recovery of a particular field.In this paper,different strategies for analyzing and developing reservoirs with coning problems were developed and different implementation steps were suggested to properly optimize the recovery of these reservoirs.Our case study is an oil reservoir in the Niger delta region with strong aquifer drive.A numerical reservoir simulation study was carried out based on the structural top and base maps generated using 3-D seismic estimated reservoir rock and fluid properties,using actual reservoir/well data.Also,production performance analysis were carried out to ascertain the causes of non-conformance issues like high BSW,decline in production and reservoir pressure.Perforation panel plots were constructed for the Levels with respect to the initial fluid contacts to diagnose for high water cut,to investigate their impact on future performance scenarios and productivity of the currently producing wells.The recommended development scenarios were also compared with the nature and structure of the reservoirs(high dip and low dip)to show the best well patterns/placements that will improve recovery.
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