PRO

Gas Hydrate Formation Prediction

Estimate hydrate formation temperature, subcooling margin, and inhibitor dosing.

Operating Conditions

Operating Pressure (psia)

Operating Temperature (F)

Gas Specific Gravity

Water Production (BPD)

Inhibitor

Hydrate Temp

Subcooling

F (margin)

Inhibitor Conc.

wt%

Inhibitor Rate

gal/day

Risk Level

Engineering formulas

Hydrate temperature (Katz correlation): Th = 8.9 * P^0.285 * SG^0.5 (simplified for 0.55-0.8 SG natural gas)

Hammerschmidt equation: dT = K * W / (M * (100 - W)), where K = 2335, M = 32 (MeOH) or 62 (MEG), W = wt% inhibitor in aqueous phase

Subcooling: dT_sub = Th - Top. Positive = in hydrate zone (risk). Need inhibitor to shift Th below Top.

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