Research Article

Investigation of the Law of Natural Gas Phase Behavior during the Migration and Reservoir Formation

Table 1

Calculated CH4 solubility in H2O (mCH4, mol/kg).

P (MPa) (K)
313.15333.15353.15363.15373.15393.15413.15433.15453.15473.15

50.04360.03920.03850.03830.03830.03870.04160.04570.04950.0541
100.08920.07130.07020.07870.07910.07980.08540.09530.10780.1256
150.12060.10120.09790.10610.10690.11230.12390.13960.16120.1911
200.14450.12730.12160.12040.12160.13820.15710.17860.20960.2506
300.17720.15920.15330.15410.15630.17350.19860.23480.27560.3455
400.20830.18810.18210.18320.18740.20860.23740.28810.34050.4194
500.23060.21250.21080.21230.21850.24270.27620.34140.40580.4933
600.25630.23790.23630.23680.24610.26770.31240.39180.46920.5463
700.28060.26230.26040.26080.27440.30110.34740.42320.50490.6026
800.30240.28550.28320.28380.30270.33310.38220.45460.54060.6573
900.32280.30450.30480.31590.33110.36090.41680.48610.57630.7103
1000.34490.32220.32280.32470.34810.38070.43680.50710.61230.7479
1100.36470.33980.34080.34250.36520.40050.45680.52810.64830.7855
1200.38240.35640.35880.36530.38190.42030.47690.54890.68430.8231
1300.39660.37750.38070.38660.40620.44810.50180.58870.70880.8543
1400.40880.39560.39840.40490.42640.47190.53070.62180.73330.8845
1500.42130.41170.41710.42320.44560.49570.55940.65490.75780.9146
1600.43120.42880.43360.44260.46680.51960.59680.68530.78230.9437
1700.44020.43990.44480.45430.48290.53680.6140.70760.81030.9747
1800.44860.4470.4520.4620.4950.55010.62720.72590.83421.0012
1900.45650.45520.45920.46970.50640.56230.64050.74420.85821.0277
2000.46240.46130.46640.47740.51920.57640.65360.76230.88211.0535