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Drilling EngineeringWell ControlCalculation record

Additional Mud Returned by Slug Calculator

Vadd=(WsWm−1)VsV_{add}=\left(\frac{W_s}{W_m}-1\right)V_s

Enter the declared drilling engineering inputs below to solve V_add. Variable definitions, units, the default calculation, and the available source trail are included on this page.

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Inputs

Defaults provide a quick field-unit example for the equation.

3 variables

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Extended guidance in preparation

What is available in this record

This record provides the functioning calculator, formula, declared variables and units, a reproducible default result, and the available citation metadata. A separately written engineering interpretation has not yet been published for this calculation.

Formula reference

Formula, variables, and default calculation

Vadd=(WsWm−1)VsV_{add}=\left(\frac{W_s}{W_m}-1\right)V_s

Reproducible default result

With the default values shown below, the calculation returns V_add = 6.666667 bbl. Defaults demonstrate the implementation; they are not recommended field values.

W_sppg

16

W_mppg

12

V_sbbl

20

Input definitions

W_s

ppg

Slug Weight

W_m

ppg

Mud Weight

V_s

bbl

Slug Volume

Output definitions

V_add

bbl

Additional Mud Returned by Slug

W_s

ppg

Slug Weight

W_m

ppg

Mud Weight

V_s

bbl

Slug Volume

Source and record status

Source metadata identifies the relationship implemented by the calculator. Check the cited edition, unit basis, and scope against the engineering case before operational use.

reviewed

IADC WellSharp Formula Sheet, field units, formula 25.

Open source reference