Volumetric flowrate of the of dry gas measured at separator
Produced or injected flowrate of natural gas across the well-reservoir contact with the volumes measured at the sandface temperature and pressure conditions.
SPE Standard Conditions (STP).
Usually produced from subsurface gas phase and oil phase.
It usually requires additional processing before taking commercial form of the Natural Gas.
For MBO fluid @model the gas surface For volatile oil fluid model the gas sandface is related to surface flowrates of crude oil flowrate g is related to gas sandface flowrate O and oil sandface flowrate and natural gas G as (see derivation) as:
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q_gG = \frac{q_g}{B_g \, ( q_G - } + R_s \, \frac{q_O) |
where
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where
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It simplifies for The gas reservoir with surface flow rate surface flowrate relates to Surface Liquid production rate
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q_G = Y_G \cdot (1-Y_w) \, q_L |
The gas surface flowrate relates to Total sandface flowrate and gas formation volume factor
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q_G = \frac{ Y_G \cdot (1-Y_W)}{B_w Y_W + \left[ (B_o - R_s B_g) + (B_g - R_v B_o) \, Y_G \right] \cdot (1-Y_W)} \cdot q_t |
It simplifies for the Black Oil model (
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q_G =\frac{q_g}{B_g} +\frac{R_s \, q_o}{B_o} = Y_G \cdot (1-Y_w) \, q_L = \frac{ Y_G \cdot (1-Y_W)}{B_w Y_W + \left[ (B_o - R_g
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See also
s B_g) + B_g \, Y_G \right] \cdot (1-Y_W)} \cdot q_t |
See Also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT) / Flowrate Testing / Flowrate
[ Well & Reservoir Surveillance ]
[ Sandface flowrates ] [ Oil sandface flowrate ] [ Gas sandface flowrate ] [ Water sandface flowrate ]
[ Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ]
[ Natural Gas ]Non-linear multi-phase diffusion derivation @model
