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Final Circulating Pressure Calculator

FCP=SCRPKWMOMWFCP=SCRP\frac{KWM}{OMW}

Enter slow circulating pressure, original mud weight, and kill mud weight. The calculator returns final circulating pressure.

Tabular solver

Inputs

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

3 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Final circulating pressure estimates circulating pressure after kill-weight mud reaches the bit at the planned kill rate.

View formula, units, and source

Assumptions

  • Slow circulating pressure is measured at the kill rate.
  • Mud weights are in the same unit system.
  • Pump speed and hydraulics remain comparable during the schedule.

Common mistakes

  • Using ICP where FCP should be used after kill mud reaches the bit.
  • Mixing mud weight units.
  • Ignoring planned kill-rate changes.