Table 6
Summary of live crude oil properties. For each case study, the predicted EACNdo using equation (5), reservoir temperature and pressure, the gas to oil ratio, the solution gas composition, and experimental and predicted EACNlo values are indicated [14].
| Crude oil | #04 | #08 | #10 | #11 | #12 | #13 | #14 | #15 | #20 | #23 | #24 | #25 | #26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EACNdo pred. | 7.9 | 13.9 | 11.4 | 13.4 | 13.4 | 12.3 | 12.8 | 16.7 | 15.8 | 14.1 | 15.8 | 16.9 | 14.3 |
| T (°C) | 120 | 95 | 82 | 110 | 110 | 100 | 102 | 95 | 65 | 108 | 75 | 85 | 40 |
| P (bar) | 180 | 143 | 190 | 215 | 155 | 186 | 90 | 125 | 83 | 82 | 140 | 108 | 125 |
| R si (Sm3/m3) | 214 | 137 | 84 | 52 | 40 | 48 | 53 | 69 | 54 | 35 | 75 | 77 | 51 |
| x methane | 0.339 | 0.418 | 0.446 | 0.348 | 0.291 | 0.345 | 0.216 | 0.294 | 0.400 | 0.261 | 0.290 | 0.289 | 0.359 |
| x ethane | 0.256 | 0.099 | – | – | – | – | 0.067 | 0.082 | – | – | 0.107 | 0.092 | – |
| x propane | – | 0.097 | – | – | – | – | 0.054 | 0.069 | – | – | 0.069 | 0.106 | – |
| x n-pentane | 0.022 | – | – | – | – | – | – | – | – | 0.016 | – | – | – |
| EACNlo exp. | 6.5 | 9.0 | 12.0 | 13.0 | 13.0 | 14.0 | 10.0 | 11.5 | 13.5 | 13.0 | 11.0 | 11.5 | 12.0 |
| EACNlo pred. | 5.1 | 10.0 | 9.5 | 11.8 | 12.1 | 11.0 | 11.1 | 13.9 | 13.8 | 12.7 | 13.1 | 13.8 | 12.8 |