Wellbore Annular Velocity & Cuttings Transport Calculator

Compute annular fluid velocity ($v_a$), particle slip velocity ($v_{slip}$), cuttings transport ratio ($F_t$), and cuttings bed accumulation risk.

Wellbore / Casing ID D_h (in):

Drill Pipe OD D_p (in):

Circulation Rate Q (gpm):

Rate of Penetration ROP (ft/hr):

Mud Density ρ_m (ppg):

Plastic Viscosity PV (cP):

Yield Point YP (lb/100 ft²):

Cutting Diameter d_c (inches):

Annular Velocity (v_a)

Transport Ratio (F_t)

Slip Velocity (v_s)

Net Cutting Speed

Annular Vol Cuttings

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