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The changes in volume and structure of HCIIP over time can be caused by production from a given petroleum reservoir or because of the hydrocarbons migration caused by production at offset hydrodynamically connected petroleum reservoirs.
For the current status of Petroleum Hydrocarbons after the anthropogenic invasion refer to HCIP.
See Also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petroleum Geology / Petroleum Reservoir
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[ Surface Tank Hydrocarbon Initial In Place (STHCIIP) ] [ Stock-Tank Oil Initial In-Place (STOIIP) ] [ Stock-Tank Gas Initial In-Place (STGIIP) ]
[ Hydrocarbon In Place (HCIP) ]