Unsteadystate
flow equation:
Equation for
quasisteadystate flow period:
where
Methods of analysis and parameters being estimated
Plot

Method

Parameters

Comments


matching




matching


matching by
separate points


matching




matching




straight
line
1)




straight
line




straight
line
2)




matching




matching




bisecting
line



1) number of
straightline intervals of the plot corresponds to the number of
production rate steps in the pumping wells;
2) all
observation points fall on a single straight line interval.
