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→Material balance estimation for oil
One general equation is
One general equation is
:<math>\text{Change in pore volume} = \text{ Change in oil volume} + \text{ change in free gas volume} + \text{ change in water volume}</math>
:<math>\text{Change in pore volume} = \text{ Change in oil volume } + \text{ change in free gas volume } + \text{ change in water volume}</math>
where
where