Fractures as Preferential Flowpaths for Aquifer Storage and Recovery (ASR) Injections and Withdrawals
In theory, “aquifer storage and recovery” (ASR) is a form of artificial aquifer recharge consisting of three components:
(1) aquifer injections of fluids;
(2) withdrawals of the injected fluids; and
(3) a period of time between the injections and withdrawals that is considered to be aquifer “storage” of the injected fluids.
The injected fluids may be: