CalcSpec

Oilfield & Mining Calculators

Free calculators and field references for oilfield, drilling, and mining engineers. Casing burst pressure, drill string weight, blast-hole pattern, pit slope, weir flow — imperial or metric, no signup.

Calculators
5
References
1
Casing grades
12
Yield range
40–125ksi

Calculators

References

Tip Every calculator supports imperial and metric, shows a worked example, and ties to the API / NACE reference tables. Burst pressure uses the API 5CT / 5C3 internal-yield factor (0.875) — not raw Barlow. Always cross-check against mill-certified MTRs.
Weak or no signal on every land rig pad

Sign the kill sheet before it goes on the DDR

Oil & Gas Toolkit runs kill-mud, ECD and pump output from SIDPP and TVD, shows the math, and prints a kill sheet. No signal, no login. Pay once.

CalcSpec tools are estimators for qualified drilling engineers, mining engineers, and geotechs. Results do not replace API / NACE standards, mill-certified MTRs, a licensed professional engineer's stamp, or site-specific geotechnical investigation.