Heat depletion in sedimentary basins and its effect on the design and electric power output of CO2 Plume Geothermal (CPG) systems

CO 2 Plume Geothermal (CPG) energy systems circulate geologically stored to extract geothermal heat from naturally permeable sedimentary basins. CPG can generate more electricity than brine in geologic reservoirs with moderate temperature and permeability. Here, we numerically simulate the depletion of a basin find corresponding generation variation over time. We that for given reservoir depth, temperature, thickness, permeability, well configuration, an optimal spacing provides largest average electric lifetime. If wells are spaced closer optimal, higher peak is generated, but depletes quickly. greater maintain longer have resistance flow thus lower generated. Additionally, 10% affects less optimal. Our simulations also show 300 m thick reservoir, 707 consistent 50 years, whereas yields large reductions Finally, increasing injection or production pipe diameters does not necessarily increase generation. • CO₂ power simulated as state changes. Correctly sized will provide greatest Over-spacing under-spacing them. Optimum increases permeability increases. Maximizing diameter may produce most