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 Envelope, see 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 % )
CO2 | 1.41 |
N2 | 0.25 |
C1 | 92.46 |
C2 | 3.18 |
C3 | 1.01 |
i C4 | 0.28 |
n C4 | 0.24 |
i C5 | 0.13 |
n C5 | 0.08 |
C6s | 0.14 |
C7+ | 0.82 |
Rs (SCF/STB) | 69,000 |
Rv (STB/MMSCF) | 15 |
API gravity | 65.0 |
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 ]