Project Information

Project Name
Company Name
User Name
Well Name
Date
Comments

Inflow Relationship

This section establishes the relationship between the well pressure and the well production.
p Pressure in (PSI) at horizontal graph bar
q Flow in (BBL/d) at vertical graph bar

Productivity Index

Plots the relationship q = P.I. x (PR - p)
PR Reservoir pressure in (PSI)
P.I. Pre-calculated Productivity Index

Vogel

Plots the relationship q = QMax x (1 - 0.2 x (p / PR) - 0.8 x (p / PR)2)
PR Reservoir pressure in PSI
Test A test measurement of pressure (PSI) and flow (BBL/d)
QMax Maximum well flow [AOF] in (BBL/d).
If not known, enter test [Pressure/Flow] below.

Fetkovich

Plots the replationship q = C x (PR2- p2)N
C and N are found by linear/log regression of two or more test [Pressure/Flow] measurements
PR Reservoir pressure in PSI
Test Two or more test measurements of pressure (PSI) and flow (BBL/d)
QMax Maximum well flow [AOF] in (BBL/d).
This can be input instead of a test measurement if known.
Otherwise it will be calculated.