Influence of different pumping and recharging schemes on regional groundwater drawdown in groundwater heat pump project: A case in Anhui Fuyang People’s Hospital

In the process of exploiting geothermal energy by groundwater heat pump, dynamic equilibrium regional drawdown is basis for sustained operation pump. this paper, taking pump project Fuyang People?s Hospital in Anhui, China as an example, a mathematical model established and numerical simulation carried out based on hydrogeological conceptual using MODFLOW software. addition, considering pattern same direction recharge, intersect ratio 90% 100% reinjection, respectively, area change funnel caused recovery water level after system stopped are analyzed. The results show that pumping well under recharge greater than while result opposite most adverse situation with production volume 1440 m3 per day continuous 4 months. Furthermore, reinjection ratio, mode larger both wells wells, increases decrease drawdown. Moreover, increase amount, rises, there certain supplement balance to quantity well.