Liquid Loading Calculator
Calculate critical gas velocity for liquid lifting in gas wells using Turner and Li-Mao-Sarica correlations. Diagnose liquid loading from current wellhead conditions.
Well Conditions
Water ≈ 62.4, condensate ≈ 45-55
Water ≈ 60, condensate ≈ 20
2⅞" = 2.441", 2⅜" = 1.995"
Results
Turner vcrit
--
ft/s
Li vcrit
--
ft/s
Current Velocity
--
ft/s
Qcrit (Turner)
--
Mscf/d
Equations
Gas Density: ρg = 2.7 × γg × P / (z × T) [lb/ft³, T in Rankine]
Turner Critical Velocity: vT = 5.62 × [σ(ρL-ρg)]^0.25 / ρg^0.5 [ft/s]
Li-Mao-Sarica Critical Velocity: vLi = 2.5 × [σ(ρL-ρg)]^0.25 / ρg^0.5 [ft/s]
Critical Rate: qcrit = 3.06 × P × vcrit × A / (z × T) [Mscf/d]
References: Turner et al. (1969) SPE 2198; Li et al. (2001) SPE 72092.
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