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where
is total reservoir storage connecting all the wells. LaTeX Math Inline body \rm RS = \int_V c_t \, \phi \, dV
Moreover, if each well is placed in different reservoir volumes which are only connected through wellbores then again they will all drain the same volume which is the sum of all connected volumes through the wellbores and all UTRs will again trend to the same LTR asymptotic.
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