Depending on context may mean:
The major difference between cumulative offtakes and cumulative production is that cumulative offtakes recalculates produced surface volumes to sandface conditions and accounts for the shrinkage factors and cross-phase exchange coefficients dependence on formation pressure
and
formation temperature which may vary over time:
Cumulative offtakes (no reference to the fluid) | Cumulative production (no reference to the fluid) |
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| LaTeX Math Inline |
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| body | Q^{\uparrow}_{\rm off} = \int_0^t B(p(\tau), T(\tau)) q^{\uparrow}(\tau) d\tau |
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| | LaTeX Math Inline |
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| body | Q^{\uparrow}_p = \int_0^t q^{\uparrow}(\tau) d\tau |
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See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis
Cumulative Offtakes, Cumulative Intakes, Cumulative VRR
