👉 An endangered fluid refers to a specific type of water found in the Earth's crust, primarily in sedimentary basins, that is under extreme pressure and temperature conditions. This unique fluid, often referred to as brine or fossil brine, is rich in dissolved minerals and salts but has limited availability due to its restricted distribution and the challenges associated with extracting it from deep underground reservoirs. The term "endangered" emphasizes the precarious nature of these resources, as they are vulnerable to depletion and environmental changes. Due to their high salinity and unique chemical composition, these fluids are not only critical for industrial applications like oil and gas extraction but also hold potential for future uses in technologies such as carbon capture and storage. However, their extraction must be carefully managed to prevent environmental degradation and ensure sustainable use.