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Table 2 Component properties tuned for 150 °C, 76 MPa, and 105,000 ppm

From: Potential assessment of methane and heat production from geopressured–geothermal aquifers

Component name

CH4

H2O

Critical pressure, atm

45.4

217.6

Critical temperature, K

190.6

647.3

Critical volume, m3/k-mole

0.099

0.056

Molecular wt., g/g-mole

16.043

19.421

Acentric factor

0.008

0.344

Parachor

77

52

Omega A

0.4572

0.4572

Omega B

0.077,796

0.077,796

Volume shift (at reservoir conditions)

−0.15400

0.21591

Volume shift (at surface conditions)

0.0

0.15859

Critical volume (viscosity), m3/k-mole

0.092217

0.04941

Binary interaction coefficient corresponding to H2O

0.0565

0