Production EngineeringWell Performance
Adsorption Unit Mass Transfer Zone Length Formula
Adsorption Unit Mass Transfer Zone Length calculates mass transfer zone length for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (q_w, v_g, RS) are known and the assumptions behind the cited well performance relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, h_z equals 34.548649 ft.
q_wlb/(ft2*h)
2
v_gft/min
25
RS%
80
Inputs
q_w
lb/(ft2*h)Water Loading
v_g
ft/minGas Velocity
RS
%Relative Saturation of Inlet Gas
Outputs
h_z
ft
Mass Transfer Zone Length
q_w
lb/(ft2*h)
Water Loading
v_g
ft/min
Gas Velocity
RS
%
Relative Saturation of Inlet Gas
Source and review
reviewedGas Conditioning and Processing, Campbell, J.M. (1992)
Campbell, J.M. 1992. Gas Conditioning and Processing, Campbell Petroleum Series, Vol. 2, Page 390.
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