Difference between revisions of "IPR"
From wiki.pengtools.com
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:<math>q_g=\frac{kh}{1422 \times 10^3\ T_R}\ (P_{\bar{P}} - P_{P_{wf}})\ J_D </math> | :<math>q_g=\frac{kh}{1422 \times 10^3\ T_R}\ (P_{\bar{P}} - P_{P_{wf}})\ J_D </math> | ||
| − | *C and n | + | *C and n equation |
===IPR calculator software=== | ===IPR calculator software=== | ||
Revision as of 11:05, 29 March 2019
Contents
Inflow Performance Relationship
IPR is relationship between well bottomhole pressure and well production rate, usually in a form of a curve.
IPR curve shows productive capacity and performance of a well.
IPR curve is used in Nodal Analysis for production systems design, analysis and optimization.
Oil Well IPR
- Darcy's law inflow equation for the single phase liquid:
Gas Well IPR
- 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
See also
Darcy's law
141.2 derivation
JD
Production Potential
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
