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Paleo-residual oil

In certain geologic and hydrodynamic settings, an additional residual oil zone exists below the traditionally defined base (oil-water contact) of an oil reservoir. These residual oil zones exist where nature has already water-flooded the lower portion of an oil reservoir. To distinguish these naturally flooded zones from anthropogenic flooded zones, the term Paleo Residual Oil Zones is used. SINTEF Petroleum Research is currently involved in a study to:

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  • Quantify the potential for CO2 storage and oil recovery from paleo residual oil zones
  • Identify paleo residual oil zones and the associated oil resources on the Norwegian Continental Shelf
  • Develop paleo residual oil zone production concepts

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