The field work planned for 2025 is focused on in-situ testing in the mineralisation using water and/or a lixiviant to evaluate hydraulic conditions that can be used to assess mining solution flow between a series of test wells.To date, all of the wells have been drilled, cased and cemented in ground (Figure 12) and water storage tanks purchased and mobilised to site.The information collected through this process is expected to increase the overall confidence of the application of ISR and facilitate detailed mine planning as part of a FS.
BCM engaged WSP Adelaide to facilitate the design and implementation of ISR field testing at Ema. WSP Brazil has now been engaged to oversee and operate the well system as it comes online during the latter stages of Q1. WSP Adelaide specializes in technical evaluation and field operations regarding subsurface fluid flow and injection projects, with experience ranging from feasibility studies to operations. The firm has substantial experience in the ISR uranium mining industry and currently provides consulting services to several ISR projects.BCM and WSP have designed an ISR field testing program specific to the unique geological characteristics of the Ema deposit.
The testing program aims to provide hydrogeological testing within the central start zone covering the Indicated Mineral Resource estimated for the deposit.Data acquired from the ISR field testing program will be utilised to create an integrated hydrogeological model, which will form the basis for ISR wellfield necessary for the FS and to support the EIA process.
Figure 12. Ema permeability field trial setup. White squares are the concreted collars of the drill holes which will be injected with water and/or lixiviant pumped from the blue storage tanks. Two separate test zones have been developed, one with shallow holes drilled to 5.7m depth (adjacent to car) and test zone 2 with both injection and extraction holes drilled to 10m depth adjacent to the 2 10,000 litre water storage tanks.
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