Difference between revisions of "IPR"

Revision as of 06:49, 5 April 2019

Inflow Performance Relationship Curve

IPR is a curve of producing rates plotted against well bottomhole pressures ^[1].

IPR curve shows productive capacity and performance of a well.

IPR curve is used in Nodal Analysis for production systems design, analysis and optimization.

q = \frac{kh}{141.2 B \mu}\ (\bar{P} - P_{wf}) J_D

q_g=\frac{kh}{1422 \times 10^3\ T_R}\ (P_{\bar{P}} - P_{P_{wf}})\ J_D

PQplot nodal analysis software is used to calculate the IPR curves. PQplot is available online at www.pengtools.com.
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B

= formation volume factor, bbl/stb

J_D

= dimensionless productivity index, dimensionless

kh

= permeability times thickness, md*ft

\bar{P}

= average reservoir pressure, psia

P_{\bar{P}}

= average reservoir pseudopressure, psia²/cP

P_{wf}

= well flowing pressure, psia

P_{P_{wf}}

= average well flowing pseudopressure, psia²/cP

q

= flowing rate, stb/d

q_g

= gas rate, MMscfd

T

= temperature, °R

\mu

= viscosity, cp

↑ Vogel, J. V. (1968). "Inflow Performance Relationships for Solution-Gas Drive Wells". Journal of Petroleum Technology. 20 (01). More than one of |number= and |issue= specified (help)

@@ Line 3: / Line 3: @@
 [[File:Inflow Performance Relationship.png|thumb|right|400px|link=https://www.pengtools.com/pqPlot|Inflow Performance Relationship Curve]]
-[[IPR]] is a curve of producing rates plotted against well bottomhole pressures.
+[[IPR]] is a curve of producing rates plotted against well bottomhole pressures <ref name= Vogel/>.
 [[IPR]] curve shows productive capacity and performance of a well.
@@ Line 48: / Line 48: @@
 [[Category:pengtools]]
+=== References ===
+<references>
+<ref name=Vogel>{{cite journal
+ |last1= Vogel |first1=J. V.
+ |title=Inflow Performance Relationships for Solution-Gas Drive Wells
+ |journal=Journal of Petroleum Technology
+ |volume=20
+ |issue=01
+ |number=SPE-1476-PA
+ |date=1968
+}}</ref>
+</references>
 ==See also==
 :[[141.2 derivation]]<BR/>