Table 1
The pseudo-composition of crude oil and associated sour gas and the critical parameters of EOS.
| Components | Oil composition (mol%) | Solution gas composition (mol%) | Molecular weight (g/mol) | P c (MPa) | T c (K) | Omega A | Omega B | Acentic factor |
|---|---|---|---|---|---|---|---|---|
| H2S | 14.69 | 17.42 | 34.08 | 8.94 | 373.6 | 0.5 | 0.1 | 0.1 |
| CO2 | 4.12 | 4.92 | 44.01 | 7.39 | 304.7 | 0.49 | 0.07 | 0.23 |
| C1 | 49.36 | 59.03 | 16.04 | 4.6 | 190.6 | 0.43 | 0.07 | 0.01 |
| C2 | 7.32 | 8.7 | 30.07 | 4.88 | 305.4 | 0.49 | 0.07 | 0.1 |
| C3–4 | 7.22 | 8.05 | 49.81 | 4.08 | 411.1 | 0.48 | 0.11 | 0.17 |
| C5–6 | 3.04 | 1.72 | 77.11 | 3.26 | 498.9 | 0.45 | 0.11 | 0.26 |
| C7–10 | 6.5 | 0.16 | 113.34 | 2.7 | 743.9 | 0.51 | 0.09 | 0.34 |
| C11–20 | 5.34 | 0 | 190.08 | 1.93 | 754.4 | 0.43 | 0.09 | 0.51 |
| C20+ | 2.41 | 0 | 437.91 | 1.22 | 909.4 | 0.46 | 0.08 | 0.8 |