Shallow hole reinforcing method suitable for high-temperature geothermal well

The invention belongs to the field of geothermal resource development, and particularly discloses a shallow hole reinforcing method suitable for a high-temperature geothermal well. According to the method, through shallow stratum stability analysis, shallow drilling arrangement and depth, well body structure, injected high-temperature cement amount calculation and a cement injection scheme, a nearly-circular cement reinforcing body with the diameter of about 12 m is formed on the periphery of a geothermal well shaft, the stratum on the periphery of the geothermal well is reinforced, and heat convection on the periphery of the well shaft is converted into heat conduction; the heat transferred from the shaft to the periphery is greatly reduced, so that the heat display around the shaft does not change obviously, and the risks of gas explosion and collapse are reduced. 本发明属于地热资源开发领域，具体公开了一种适用于高温地热井的浅孔加固方法。该方法通过浅层地层的稳定性分析、浅钻布置及深度、井身结构、注入高温水泥量计算和水泥注入方案，在地热井筒周边形成直径12m左右的近圆形水泥加固体，加固地热井周边地层，将井筒周边的热对流变为热传导，大幅降低井筒向周边传递