Input Data
This chapter contains the scenario definitions and input data used for blowout and well kill simulations for hypothetical blowouts from one of the wells on the Alpha or Beta fields.
A Pressure Volume Temperature (PVT) characterisation was made using the PVTsim fluid characterisation software from CALSEP, based on the reservoir composition and fluid properties given in the following tables.
Table -3: Reservoir fluid compositions used in simulations
Fluid composition |
Alpha A |
Alpha 6u/m |
Beta A/B |
Beta H2 |
|
Component |
Mole % |
Mole % |
Mole % |
Mole % |
|
nitrogen |
N2 |
0.28 |
0.19 |
0.20 |
0.14 |
carbon dioxide |
CO2 |
1.45 |
1.75 |
1.52 |
3.00 |
methane |
CH4 |
82.22 |
86.78 |
85.27 |
88.47 |
ethane |
C2H6 |
7.06 |
6.43 |
6.87 |
5.59 |
propane |
C3H8 |
3.54 |
2.26 |
2.66 |
1.34 |
iso-butane |
iC4H10 |
0.55 |
0.38 |
0.41 |
0.29 |
n-butane |
nC4H10 |
1.18 |
0.54 |
0.67 |
0.29 |
iso-pentane |
iC5H12 |
0.40 |
0.21 |
0.23 |
0.14 |
n-pentane |
iC5H12 |
0.40 |
0.15 |
0.21 |
0.09 |
hexanes |
C6 |
0.80 |
0.45 |
0.54 |
0.15 |
heptanes plus |
C7+ |
2.11 |
0.86 |
1.42 |
0.50 |
molecular weight |
C7+ |
134.9 |
130.8 |
136.0 |
127.8 |