Pipes Functions
Plugins

Pipes Functions
Pressure Map (Annular and Tube)
Computes a map of total pressures
og.model.hydraulics.pressureMap(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s,
"entryPressure", value_Pa,
"startAnnular", boolean,
"isAnnular",boolean)
)
ECD and ESD (Annular)
Computes a map of equivalent densities
og.model.hydraulics.equivalentDensityMap(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s,
"entryPressure", value_Pa,
"startAnnular", boolean,
"isAnnular",boolean)
)
Frictional Pressure Loss (Annular and Tube)
Computes a map of frictional pressure losses.
og.model.hydraulics.frictionalPressureLossMap(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s,
"entryPressure", value_Pa,
"startAnnular", boolean,
"isAnnular",boolean)
)
Pressure at specific MD (Annular and Tube)
These methods calculate the pressure at a given depth, eg. when it is set the depth=0.0m and isAnnular = False the method returns the standpipe pressure. Normally this functionality is useful to compare pressure (at specific position) on Time Charts.
Computes the pressure at a given depth.
og.model.hydraulics.pressure(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s,
"entryPressure", value_Pa,
"startAnnular", boolean,
"isAnnular",boolean,
"depth", value_m)
)
ECD or ESD at specific MD (Annular and Tube)
These methods calculate the ECD at a given depth, eg. when it is set the depth=bitdepth and isAnnular = True the method returns the Bottom ECD or ESD. Normally this functionality is useful to compare ECD and ESD (at specific position) on Time Charts.
Computes the equivalent density at a given depth
og.model.hydraulics.equivalentDensity(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s,
"entryPressure", value_Pa,
"startAnnular", boolean,
"isAnnular",boolean,
"depth", value_m)
)
Frictional Pressure Loss by Components
Maps components into their respective pressure drops.
og.model.hydraulics.lossByComponent(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s)
)
Computes a specific component pressure drop
og.model.hydraulics.componentLoss(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s),
"type", "type_component",
"name", "name_component")
)
Choke Pressure
Calculates the choke pressure based on a set point and measured depth of the set point
og.model.hydraulics.chokePressure(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
"fluidFlow", value_m3/s,
"equivalentDensitySetPoint", value_kg/m3,
"measuredDepthSetPoint", value_m)
)
Calibration
Calibrates frictional pressure loss on BHA from the linear and exponential parameters on adjustable components.
og.model.hydraulics.chokePressure(
newmap("wellId", "{well_id}",
"bitDepth", value_m,
seq points. Each point being:
{fluidFlow (m³/s), entryPressure (Pa), exitPressure (Pa)})
)
Optimization
Calculates the maximum flow rate for given pump characteristics
og.model.hydraulics.maximumFlowRate(
newmap("wellId", "{well_id}",
"maximumPressure", value_Pa,
"hydraulicPower", value_J/s,
"efficiency", value_kg/m3)
)
Calculates the optimum flow rate for maximum bit hydraulic power
og.model.hydraulics.optimizeFlowRateWithMaximumBitHydraulicPower(
newmap("wellId", "{well_id}",
"maximumPressure", value_Pa,
"minimumFlowRate", value_m3/s,
"maximumFlowRate", value_m3/s)
)
Calculates the flow x bit jet impact force considering maximum system pressure
og.model.hydraulics.bitJetImpactForce(
newmap("wellId", "{well_id}",
"maximumPressure", value_Pa,
"minimumFlowRate", value_m3/s,
"maximumFlowRate", value_m3/s)
)
Calculates the optimum flow rate for maximum bit jet impact force
og.model.hydraulics.optimizeFlowRateWithMaximumBitJetImpactForce(
newmap("wellId", "{well_id}",
"maximumPressure", value_Pa,
"minimumFlowRate", value_m3/s,
"maximumFlowRate", value_m3/s,
"fluidDensity", value_kg/m3)
)
Input Parameters Description
Input Parameters on Hydraulic Pipes Functions
Parameters
Description
unit
wellId
Well Id
String
drillingSectionIndex
Drilling Section Index
String
runPosIndex
Run Pos Index
String
bitDepth
bit depth measured depth. Default is length of drill string
meters
fluidFlow
Flow Rate or pump flow in. Default is zero
m3/s
isAnnular
The pressure at the start of the portion specified at the {@link Hydraulics} creation, which determines the ({@link #integrationPath}). If startAnnular at {@link Hydraulics} construction is true, the portion is the annular one, tubular otherwise.
Boolean
entryPressure
The pressure at the integration path starts. Default zero.
Pa
startAnnular
This is MD of start annular (default = 0). When is the ‘return to seabed’ scenario this value is the water depth.
m
cuttingsDensity
Density of Cuttings.
(Kg/m³)
tubularPressureMap
Pressure along of tubular
(m, Pa)
annularPressureMap
Pressure along of annular
(m, Pa)
tubularTemperatureMap
Temperature along the tubular. Important for compressibility
(m, degK)
annularTemperatureMap
Temperature along of annular
(m, degK)
cuttingsConcentrationMap
Solid concentration along of annular
(m, m3/m3)
boosterDepth
Depth (MD) of pump booster
(m),
boosterFluidFlow
Flow rate of pump booster
(m³/s),
useCalibrationData
Used to calibrate the standpipe pressure. Default is False
boolean
linearCalibratableParameter
Calibratable parameter (on BHA)
-
exponentialCalibratableParameter
Calibratable parameter (on BHA)
-
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