Research Article
Investigation of the Law of Natural Gas Phase Behavior during the Migration and Reservoir Formation
Table 2
The polynomial models of CH
4 solubility in H
2O (
, mol/kg).
| Region | Boundary condition | Fitting model | Coefficient (with 95% confidence bounds) | Goodness of fit () | (K) | (MPa) |
| A | 313.15~473.15 | | |
| 0.9461 | B | 313.15~473.15 | | |
| 0.9992 | C | 313.15~473.15 | | |
| 0.9997 |
|
|