Rod Pump LAMBDAs
30 lambdas
PO.RP.Load.FluidLoad.SI(Ap, H, G)
Calculates fluid load on plunger, [N] (SI units).
PO.RP.Load.MPRL.SI(Wrf, F2, Skr)
Calculates Minimum Polished Rod Load using API 11L method, [N] (SI units).
PO.RP.Load.MPRL.Simple.SI(Wrf)
Calculates simplified MPRL (static, no dynamic effects), [N] (SI units).
PO.RP.Load.PPRL.SI(Wrf, Fo, F1, Skr)
Calculates Peak Polished Rod Load using API 11L method, [N] (SI units).
PO.RP.Load.PPRL.Simple.SI(Wrf, Fo)
Calculates simplified PPRL (static, no dynamic effects), [N] (SI units).
PO.RP.Load.Range.SI(PPRL, MPRL)
Calculates polished rod load range (PPRL - MPRL), [N] (SI units).
PO.RP.Pump.Disp.Eff.SI(PD, F)
Calculates effective pump displacement accounting for fillage, [m3/d] (SI units).
PO.RP.Pump.Displacement.SI(Ap, Sp, N)
Calculates theoretical pump displacement, [m3/d] (SI units).
PO.RP.Pump.Displacement.FromDiameter.SI(d, Sp, N)
Calculates theoretical pump displacement from plunger diameter, [m3/d] (SI units).
PO.RP.Pump.Fillage.SI(Qa, PD)
Calculates pump fillage from actual and theoretical production, [fraction] (SI units).
PO.RP.Pump.PIP.SI(Pwf, Psub)
Calculates pump intake pressure (PIP), [kPa] (SI units).
PO.RP.Pump.Psub.SI(h, G)
Calculates submergence pressure from fluid column height, [kPa] (SI units).
PO.RP.Pump.Stroke.Eff.SI(S, dLr, dLt)
Calculates effective plunger stroke from surface stroke and stretch, [cm] (SI units).
PO.RP.Pump.VolEff.SI(Qa, PD)
Calculates volumetric efficiency of the pump system, [fraction] (SI units).
PO.RP.Rod.Area.SI(d)
Calculates rod cross-sectional area from diameter, [cm2] (SI units).
PO.RP.Rod.MaxStress.SI(PPRL, Ar)
Calculates maximum rod stress from peak load, [kPa] (SI units).
PO.RP.Rod.MinStress.SI(MPRL, Ar)
Calculates minimum rod stress from minimum load, [kPa] (SI units).
PO.RP.Rod.StressRange.SI(smax, smin)
Calculates rod stress range (fatigue indicator), [kPa] (SI units).
PO.RP.Rod.Stretch.FluidLoad.SI(Fo, L, Ar)
Calculates rod stretch due to fluid load, [cm] (SI units).
PO.RP.Rod.Stretch.RodWeight.SI(Wair, L, Ar)
Calculates rod stretch due to rod weight (self-weight stretch), [cm] (SI units).
PO.RP.Rod.Stretch.Total.SI(Fo, Wair, L, Ar)
Calculates total static rod stretch (fluid load + self-weight), [cm] (SI units).
PO.RP.Rod.Wair.SI(Ar, L)
Calculates rod string weight in air, [N] (SI units).
PO.RP.Rod.Wbuoy.SI(Wair, SG)
Calculates buoyant rod string weight (weight in fluid), [N] (SI units).
PO.RP.Rod.Wft.SI(d)
Calculates rod weight per foot for a given diameter, [kg/m] (SI units).
PO.RP.Torque.Adjustment.SI(CBEi, CBEa)
Calculates counterbalance adjustment needed, [N]. Positive = add weight (SI units).
PO.RP.Torque.IdealCBE.SI(Wrf, Fo)
Calculates ideal counterbalance effect from rod weight and fluid load, [N] (SI units).
PO.RP.Torque.IdealCBE.Loads.SI(PPRL, MPRL)
Calculates ideal counterbalance effect from PPRL and MPRL, [N] (SI units).
PO.RP.Torque.Net.SI(PRL, CBE, TF)
Calculates net gearbox torque at a given crank angle, [N.m] (SI units).
PO.RP.Torque.Peak.SI(PPRL, MPRL, S)
Calculates estimated peak net torque (simplified), [N.m] (SI units).
PO.RP.Torque.PRHP.SI(PPRL, MPRL, S, N)
Calculates polished rod horsepower, [kW] (SI units).