SC DrillTechKnowledge base · Free
The method, in the open
The formulas, target bands and definitions behind every SC DrillTech recommendation — open for any engineer to use. No sign-up required.
Core solids-control formulas
The same relationships built into our tool kits and reports, per API RP 13C.
| Quantity | Formula | Target / band |
|---|---|---|
| Shaker / centrifuge G-force | G = N² · s ÷ 70,414 | Shaker 4–8 g |
| Agitator turnover (TOR) | TOR = (V ÷ Q) · 60 | 40–85 s |
| Hydrocyclone feed head | h = 19.2 · p ÷ ρ | ≥ 75 ft |
| Line velocity | v = 0.4085 · Q ÷ d² | 4–8 ft/s |
| Removal efficiency | η = 100 (1 − k), k = Vc/Ve | > 70% good |
| Equipment capture | wₐ = 100·w₃(w₁−w₂)/[w₁(w₃−w₂)] | ≥ 50% good |
More to explore
Glossary & nomenclature
Every symbol and unit used across solids control, mud and DWM — defined in plain language.
API RP 13C notes
Field-friendly notes on the screen-labelling and test standard that underpins our work.
Calculator cheat-sheets
One-page references for the most-used calculations — the lite version of the tool kits.
Field FAQ
Common solids-control and waste questions, answered from rig experience.
Environmental & compliance
EPA, OSPAR & ROPME discharge limits and zero-discharge — explained for the field.