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Monday, November 17, 2014

Reservoir Drive Mechanisms

Production of oil and gas from a hydrocarbon reservoir is simply a matter of supply of the energy that would allow the reservoir fluids to come up to the surface. Depending on some properties of reservoir viz. pressure , geology , PVT properties of the crude , each reservoir would have a different mechanism for energy supply.

The mechanisms for energy supply for production of oil and gas from the reservoir is what we commonly know as the Reservoir Drive Mechanism.

The most commonly observed Drive Mechanisms include :

  • Solution Gas Drive
  • Gas Cap Drive 
  • Water Drive 
  • Compaction Drive
  • Gravity Drainage
More than one drive mechanism can exist in a reservoir. However , one  is usually the dominant mechanism in the reservoir .

If we have an idea about the dominant drive mechanism in a reservoir , we can generate the expected recovery , production and pressure profiles of the reservoir.




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