Practical Approach for Defining the Sustainable Yield of Wells in Low-Permeability Fractured Rocks

Groundwater sustainability is still an open question. Theoretical and practical approaches to the definition of groundwater were mainly developed on large scales, while few studies are available for its at a single well scale, especially in fractured aquifers. This study examines how much sustainable yield aquifers depends trend drawdown over time. For this aim, pumping tests conducted rocks considered analytical models applied examine long-term response levels some wells. To define operational flow these aquifers, results show that long constant rate preferred step-drawdown tests. The late drawdown–time curve residual segment-curves during recovery, approximated by power, exponential or polynomial equations, represent first step extrapolating well. prediction combined with assessment limit (as function saturated thickness aquifer) essential plan operation (flow time pumping). Subsequently, through monitoring step, following phases can be updated improved.