• Cutting Slip Velocity
       
Input Field(s)    
Plastic Velocity (PV) cps
Mud Weight (Mw) ppg
Particle diameter (Dp) in
Particle Density (Denp) ppg
Flow Rate (Q) gpm
Hole Diameter (Dh) in
Drill Pipe OD (Dpipe) in
       
Output Field(s)      
Annular Velocity (Va) ft/min
Cutting Slip Velocity (Vs) ft/min
Cuttings Net Rise Velocity (Vr) ft/min

  • Calculation Guide
  • Overview
    • Estimate the cuttings slip velocity of a specific size and weight in a given fluid
  • Equations
    • Vs = 0.45 (PV/(Mw Dp)) [((36800/(PV/(Mw Dp) 2) Dp (DenP/MW - 1) + 1)0.5 - 1]
    • --------------------------------------------------
    • Vs - Slip Velocity (ft/min)
    • PV - Plastic Velocity, cps
    • Mw - Mud Weight (ppg)
    • Dp - Particle Diameter (in)
    • DenP - Particle Density (ppg)
  • Assumptions
    • Calculated for a specific size and weight in a given fluid
  • Reference
    • Formulas and Calculations for Drilling, Production and Workover; Lapeyrouse, N
  • Unit Conversion Tool