GLOSSARY

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DTR is a sandface pressure response 

LaTeX Math Inline
bodyp_{u,mm}(t)
 in well "m" to the constant unit-rate (
LaTeX Math Inline
bodyq_m=1
) production from the same well "m"


Image Added

Fig. 1. A sample of typical DTR (pressure P in blue and log-derivative P' in red) presented in log-log coordinates for PTA type-library analysis