Mud volume calculations

Mud volume calculations: Either Hole Washout factor to be multiplied by hole size or the volume.

Whenever engineer design mud volumes, for open hole volume, hole washout factor must be considered. Now I observed some companies applying factor to hole size, while some simply multiplies the open hole volume. What is the correct approach.

Option A: (((Hole size^2)*(washout percentage/100)/1029.4)*depth

Or

Option B: (((Hole size^2)/1029.4)*(washout percentage/100)*depth

2 Answer(s)

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