Difference between revisions of "3 Phase IPR"
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[[3 Phase IPR]] calculates IPR curve for oil wells producing water. | [[3 Phase IPR]] calculates IPR curve for oil wells producing water. | ||
Revision as of 07:54, 11 April 2019
Contents
Three-phase Inflow Performance Relationship
3 Phase IPR calculates IPR curve for oil wells producing water.
3 Phase IPR equation was derived by Petrobras based on combination of Vogel's IPR equation for oil flow and constant productivity for water flow [1].
3 Phase IPR curve is determined geometrically from those equations considering the fractional flow of oil and water [1].
Math and Physics
Oil well IPR equation
- Darcy's law equation for the single-phase flow of incompressible liquid:
- Vogel's IPR two-phase flow equation (oil + gas) and it's combination with single phase liquid
- 3 Phase IPR three-phase flow equation (oil + gas + water)
Gas well IPR equation
- Darcy's law gas inflow equation:
- C and n equation
IPR calculator software
- PQplot nodal analysis software is used to calculate the IPR curves. PQplot is available online at www.pengtools.com.
- Excel
- other
Nomenclature
= formation volume factor, bbl/stb
= dimensionless productivity index, dimensionless
= permeability times thickness, md*ft
= average reservoir pressure, psia
= average reservoir pseudopressure, psia2/cP
= well flowing pressure, psia
= average well flowing pseudopressure, psia2/cP
= flowing rate, stb/d
= gas rate, MMscfd
= temperature, °R
Greek symbols
= viscosity, cp
References
Cite error: <ref> tag with name "Vogel" defined in <references> is not used in prior text.
