Mud pump output
Output per stroke and flow rate of a single-acting triplex or quintuplex pump from the liner size, stroke length, pump speed and volumetric efficiency.
q = z · π/4 · D² · S · ηQ = q · NIn one stroke (one crank revolution) each cylinder of a single-acting pump delivers one liner volume. Double-acting duplex pumps differ: q = π/2 · (2D² − d²) · S · η, with d the rod diameter.
Source: Lapeyrouse N. J., Formulas and Calculations for Drilling, Production and Workover (Gulf Professional Publishing): triplex output 0.000243 · D² · S bbl/stk (D and S in inches)
Inputs
You can change a field's unit: the value is converted to the formula's units automatically.
Usually 90–97 %; measure it against a calibrated tank for accuracy.
Unit converter for this formulaLength · Liquid volume · Liquid rate · Fraction and percent
- m1
- cm100
- mm1,000
- km0.001
- ft3.28084
- in39.3701
- 1/32 in1,259.84
- 1/64 in2,519.69
- mile0.000621371
- Q — Flow rate–
More in Hydraulics
Total flow area (TFA), jet velocity, bit pressure drop, hydraulic power at the bit and per unit of hole area (HSI), jet impact force.
Average mud velocity in the annulus between the hole (or casing) and the pipe at a given pump rate.
Pump strokes and time to pump the string and annulus volumes: when the mud reaches the bit, when the bottoms-up (cuttings, gas) reaches surface, and how long a full circulation takes.
Results are engineering estimates from standard formulas; for design decisions check them against the codes, project documents and specialists' calculations. The formulas carried over from the original set are unchanged, and their errors are described in the notes.