A novel workflow was developed to select an optimal field development plan (FDP) which accounts for a number of associated uncertainties for an oil Greenfield concession that has a limited number of wells, production data and information. The FDP was revisited and updated to address the additional data acquired during the field delineation phase.

The study in Ref-1 demonstrates the comprehensive uncertainty analysis performed and the resulting optimized FDP. The FDP was developed to minimize the economic risk and uncertainty. Further field delineation activities have revealed a north and south extensions with an increase in hydrocarbon accumulation by 115%. A reservoir dynamic model was updated because of the increase in HC and input data from 17 wells.

A workflow has been created with a suitable development option to consider the recently appraised areas, which are:

  • Updated saturation height functions (SHFs) which improve the match between newly drilled wells and water saturations logs

  • Updated reservoir models which were based on well tests and new analytical interpretations

  • History matching well test data with new acquisition data

  • Optimized field development options, that cover additional areas

  • Inputs to reservoir surveillance plan

Be implementing following an extensive analysis the most robust development concept was selected and will now in the field.

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