Herschel-Bulkley Yield Power Law Mud Calculator

Compute 3-parameter Yield Power Law (YPL) rheology (yield stress τ₀, flow index n, and consistency index K) across low and high shear rate regimes.

600 RPM (θ₆₀₀, 1022 s⁻¹):

300 RPM (θ₃₀₀, 511 s⁻¹):

6 RPM (θ₆, 10.2 s⁻¹):

3 RPM (θ₃, 5.1 s⁻¹):

Annular Shear Rate γ (s⁻¹):

Yield Stress Estimation Method:

Yield Stress (τ₀):

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Flow Behavior Index (n):

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Consistency Index (K, oilfield):

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Consistency Index (K, Pa·sⁿ):

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Annular Shear Stress τ:

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Annular Apparent Viscosity:

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Fluid Rheology Interpretation:

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