Global Parameters

A number of calculations embedded within the CO2 Stored system use default values or constants which may require future revision. For convenience, the 'global constants' used by the calculations may be viewed here.

Constants

Description Value Units
Max Allowable Storage Pressure as a Fraction of Fracture Pressure 0.9
Saline Water Pressure Gradient 10.0659 MPa/km
Surface Temperature 8 deg C
Gravity 9.8067 m/s 2
Brine Density 1.026 g/cc
Representative Lithostatic Pressure Gradient 20 MPa/km
Representative Fracture Pressure Gradient 19 MPa/km

Multipliers used to generate uncertainty ranges for hydrocarbon fields

Description Min ML Max
Cumulative Oil Production 0.95 1 1.05
Cumulative Water Production 0.85 1 1.15
Cumulative Gas Injection 0.9 1 1.1
Cumulative water Injection 0.9 1 1.1
Virgin Reservoir Pressure @ Reference Depth 0.9 1 1.1
Virgin Reservoir Temperature @ Reference Depth 0.9 1 1.1
Gas Compressibility (Z) Factor @ P, T 0.85 1 1.15
Oil Formation Volume Factor 0.85 1 1.15
Water Formation Volume Factor 0.85 1 1.15
Solution Gas Oil Ratio at Virgin Reservoir Conditions 0.85 1 1.15
Condensate Gas Ratio at Virgin Reservoir Conditions 0.85 1 1.15
API of Gas Condensate at Virgin Reservoir Conditions 0.85 1 1.15
Cumulative Sales Gas 0.9 1 1.1
Cumulative Fuel+Flare Gas 0.8 1 1.2
Cumulative Condensate Production 0.95 1 1.05
Condensate Formation Volume Factor 0.85 1 1.15

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