critical oil flow calculator

enter the value and click "calculate", the calculation result will be displayed.

`Q_[o c]=0.246×10^-4([p_o-p_g]/[I n(r_e/r_w)])(K_o/[U_o×B_o])(h^2-h_p^2) `
Q_oc = critical oil flow
p_o = oil density
p_g = gas density
r_e = drainage radius of well
r_w = wellbore radius
K_o = effective oil permeability< br> u_o = oil viscosity
B_o = oil layer volume coefficient
h_p = puncture interval
h = oil column thickness

enter a value:

oil density:

Lb / ft³

gas density:

Lb / ft³

well drainage radius:

Ft

wellbore radius:

Ft

effective oil penetration:

mD

oil viscosity:

cp

oil layer volume coefficient:

oil column thickness:

Ft

puncture interval:

Ft

calculation result:

critical oil flow:

STB / day

critical oil flow calculator in recent decades, different types of so-called precision two-phase flow meters have been introduced into the oil and gas industry through the use of advanced technologies. by using these two-phase flow meters at the wellhead or manifold, the exact amount of oil, gas, and water produced by each well can be calculated; however, in addition to the errors inherent in such meters, due to economic issues (capital expenditure (capex) and operating expenses (opex)), they are not yet widely used. on the other hand, for dynamic reservoir management it is very important to have production data from each well to a certain degree of reliability. therefore, it is still common to use empirical choke formulas to estimate well rates.

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