Method of returning geothermal gases to the underground

摘要

Disclosed is a method of returning geothermal gases discharged from geothermal plants to the underground together with waste water through a return well, characterized in that the apparent velocity of waste water Veo relative to the return well is equal to or more than 1 m/s and the range of the apparent velocity of waste water Veo and of an apparent velocity of the geothermal gases Vgo is regulated to satisfy the following equation: Vgo<1.33Veo-0.41.