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Guidelines for MMPs with different solvents

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Rough guidelines for estimating minimum miscibility pressure (MMP) using different solvents.

Process

Enriched gas

Injection gas
Natural gas enriched with C2, C3, C4
Miscibility Pressure (psi)
1,500—3,000; >26° API
Typical Depth (ft)
>2,000

Vaporizing gas

Injection gas
Natural gas; nitrogen; flue gas CO2
Miscibility Pressure (psi)
>3,500; >40° API
Typical Depth (ft)
>5,000

Carbon dioxide

Injection gas
CO2
Miscibility Pressure (psi)
1,200; 26° API
Typical Depth (ft)
>2,000

Table references

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