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Natural Gas Reservoir with initial formation temperature  T_i > T_{c, \rm max} above Cricondentherm  T_{c, \rm max} and producing condensate at separator (i.e. the separator conditions staying inside Vapour Liquid Envelopesee Fig. 1).


Fig. 1. Production path of the Wet Gas Reservoir on the Phase Equilibrium Diagram.

The downward solid black arrow shows a reservoir pressure depletion path. 

The downward grey dash arrow shows a wellbore lift pressure drop path.


Table 1 – Example of Wet Gas  composition (in mol % )

Substance

Wet Gas 

CO21.41
N20.25
C192.46
C23.18
C31.01
i C40.28
n C40.24
i C50.13
n C50.08
C6s0.14
C7+0.82
Rs  (SCF/STB)69,000
Rv  (STB/MMSCF)15
API gravity65.0
M7+132
γ7+0.750

See Also


Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petroleum Geology / Petroleum Reservoir / Hydrocarbon reservoir / Natural Gas Reservoir

Hydrocarbon Reserves ][ Depletion ]

References





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