Wax Appearance Temperature Deposition Calculator
Crude Oil Flow Assurance: Calculate Wax Appearance Temperature ($WAT$), inner wall thermal gradient, daily wax buildup rate, and pipeline pigging frequency.
Fluid & Thermal Environment
Pipeline Geometry & Timeline
Deposition Rate & Pigging Schedule
Inner Wall Temp ($T_{wall}$)
-- °F
WAT - Twall: -- °F
Wax Cake Thickness ($\delta$)
-- mm
In inches: -- in
Flow Area Restriction
-- %
Rate: -- mm/day
Recommended Pigging Cycle
-- days
Limit: max 3.0 mm cake
Molecular Diffusion Mechanism:
• Wax deposits ONLY when inner pipe wall temperature is below the cloud point: $T_{wall} < WAT$.
• Deposition rate is driven by radial temperature gradient: $\frac{dm}{dt} \propto D_m \left(\frac{dC}{dT}\right) \left(\frac{dT}{dr}\right)_{wall}$.
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