AGE Aquifer Injection Control

ASR Valve Control Cabinet Aquifer Storage and Recovery (ASR) or Aquifer Injection Control (AIC) is a method of enhancing water recharge to underground aquifers by gravity feeding or pumping excess water into the aquifers for later use in times of peak demand or simply a method to store unwanted or surplus water stocks.

ASR is a low-cost alternative to store water (compared to surface storages) and can minimise evaporative water loss.

During injection, the water in the injection column is controlled to prevent air from being entrained or trapped in the fluid flow and carried into the aquifer. Entrained air can adversely affect the recharge efforts, through air-fouling, bio-fouling and calcite formation, blocking the sustained flow of water into the aquifer in the longer term.

There are many options available for aquifer injection control based on the desired level of control and the intended application.

Flow Control Packer (FCP)

The simplest method allowing basic unmanned and unmonitored control of the injection process is to employ a pneumatic packer at the bottom of the injection column or simply suspended into the bore casing.

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Flow Control Valve (FCV)

Stepping up, the next option is to employ a flow control valve that can be either manually or automatically (via PLC) controlled from surface by means of the surface control system (SCS).

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Aquifer Storage & Recovery Valve (ASR)

The AGE ASR valve is the ultimate in injection control that also allows aquifer fluids to be injected or pumped to meet either production requirements or to back flush where an injection bore is susceptible to regular fouling due to mineralised deposits forming within the bore causing clogging issues.

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