There are two wellfields considered for production; one in the East and one in the Southwest. For Stage 1, only wells from the East wellfield will be used, while Stage 2 will utilise the Southwest wellfield. The locations of production wells were selected to reduce long-term freshwater drawdown and maintain the highest possible brine grade.
Ten wells have been constructed for Stage 1, all wells will be connected through pipelines to a booster station that is be situated in a central location to the wellfield. The booster station combines brines from the different wells and acts as a brine pumping station to reach the ponds and provide a buffer for seasonal flow changes. The average flow from the brine wells to the first evaporation ponds will be approximately 159 litres per second (“L/s”) for Stage 1.
The production well locations were selected to reduce long-term freshwater level drawdown and maintain as high a brine grade as possible, given each well location and the potential for brine dilution. During wellfield construction, each production well will be tested and analysed immediately after construction.
Well depths, well filters, and well casing blind intervals sealed from pumping were designed based on the following factors:
• Location of lithium-bearing brine zones;
• Location of aquifer zones with comparatively large hydraulic conductivity;
• Location of existing fresh or brackish water zones, and/or future potential fo ........
