Nodal Analysis Outflow Performance Calculator
Compute the single-phase outflow (tubing intake) bottom-hole pressure required to lift a given liquid rate against wellhead pressure, hydrostatic head and Darcy-Weisbach friction.
Description
Compute the single-phase outflow (tubing intake) bottom-hole pressure required to lift a given liquid rate against wellhead pressure, hydrostatic head and Darcy-Weisbach friction.
Nodal Analysis Outflow Performance Calculator: Compute the single-phase outflow (tubing intake) bottom-hole pressure required to lift a given liquid rate against wellhead pressure, hydrostatic head and Darcy-Weisbach friction.
When to use Nodal Analysis Outflow Performance
Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.
- WHFP
- Wellhead pressure in megapascals.
- Tubing length
- Tubing length along the flow path in metres.
- Tubing ID
- Tubing inner diameter in metres.
- Liquid rate
- Liquid flow rate in cubic metres per day.
- Fluid density
- Fluid density in kilograms per cubic metre.
- Friction factor
- Darcy-Weisbach friction factor.
How Nodal Analysis Outflow Performance works
Compute the single-phase outflow (tubing intake) bottom-hole pressure required to lift a given liquid rate against wellhead pressure, hydrostatic head and Darcy-Weisbach friction. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Velocity
- Mean fluid velocity in the tubing in metres per second.
- Hydrostatic
- Hydrostatic pressure drop in megapascals.
- Friction
- Frictional pressure drop in megapascals.
- Required BHP
- Required bottom-hole pressure on the outflow curve in megapascals.
Limitations and assumptions
- Petroleum correlations are fluid-, pressure-, temperature-, and region-dependent. PVT sampling, phase behavior, relative permeability, capillary pressure, heterogeneity, aquifer support, well constraints, history match, and units affect forecasts and reserves.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.
References
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Reservoir engineering — Wikipedia contributors
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