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The volumetric value of HCR in NTP conditions is given by STHCR.
The percentage which recoverable reserves STHCR constitute of the total Surface Tank Hydrocarbon Initial In Place (STHCIIP) is called Recovery Factor.
Unlike STHCIIP, which is purely geological concept, the STHCR and corresponding RF depend on the parameters of FDP based on reserves complexity, recovery method, recovery duration and economics.
There are different ways of classifying reserves based on their volume and structure.
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