Mud Weight-Up & Dilution Calculator
Weighting up for a kill or cutting back after a section — the mud weight tools give barite sacks, new volume and dilution volume at a glance.
Formulas
Barite (sx/bbl)
Sx/bbl = 14.7 × (W₂ − W₁) / (35 − W₂)Dilution
V_add = V₁ × (W₁ − W₂) / (W₂ − W_d)Worked example
GIVEN
- 500 bbl at 10.0 ppg
- Target 11.5 ppg
- 100 lb barite sacks
WORKING
- Sx/bbl = 14.7 × 1.5 / 23.5 = 0.938
- Total = 0.938 × 500
≈ 469 sacks of barite
FAQ
Does this include volume increase?
Yes — the calculator also reports the new system volume after adding barite.
Run it with your well data
Field & Metric units, works offline, save and share results with your crew.
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Reference only. Always verify against your company procedures and well-control certification.