Nodal Analysis Inflow Performance Calculator
Compute Vogel (1968) inflow performance for a saturated oil well from reservoir pressure, flowing bottom-hole pressure and productivity index.
Description
Compute Vogel (1968) inflow performance for a saturated oil well from reservoir pressure, flowing bottom-hole pressure and productivity index.
Nodal Analysis Inflow Performance Calculator: Compute Vogel (1968) inflow performance for a saturated oil well from reservoir pressure, flowing bottom-hole pressure and productivity index.
When to use Nodal Analysis Inflow 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.
- Reservoir pressure
- Average reservoir pressure in megapascals.
- FBHP
- Flowing bottom-hole pressure in megapascals.
- PI
- Productivity index in cubic metres per day per megapascal.
How Nodal Analysis Inflow Performance works
Compute Vogel (1968) inflow performance for a saturated oil well from reservoir pressure, flowing bottom-hole pressure and productivity index. 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
- AOF rate
- Vogel maximum flow rate at zero bottom-hole pressure in cubic metres per day.
- Inflow rate
- Vogel inflow rate at the given bottom-hole pressure in cubic metres per day.
- Drawdown
- Drawdown 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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