以美国沙漠峰增强型地热系统资料为依据,建立双井式增强型地热系统的概念模型和数值模型。结果表明定流量循环条件下生产过程包括稳定和衰减2个阶段。在30 a开采期内,电能功率为4.65~4.54 MW,水流阻抗为0.006~0.040 MPa/(kg/s);较大的井距和合适的流体产量能减缓电能功率的衰减,而在一定范围内储层渗透率对电能功率影响很小;在一定范围内较高的储层渗透率能显著降低水流阻抗,而较大的井距和较高的流体产量将增加水流阻抗,但效果并不明显。 Based on the data of the enhanced geothermal system of the desert peak in the United States, a conceptual model and a numerical model of double-well enhanced geothermal system are established. The results show that the production process under constant flow and circulation conditions includes two stages of stabilization and attenuation. During the 30-year mining period, the power of electric energy is 4.65-4.54 MW and the water flow resistance is 0.006-0.040 MPa / (kg / s). Larger well spacing and appropriate fluid yield can reduce the power attenuation. In a certain range The reservoir permeability has little effect on the electrical power; the higher reservoir permeability within a certain range can significantly reduce the water flow impedance, while the larger well spacing and higher fluid production will increase the water flow impedance, but the effect is not obvious.