常见地热井堵塞类型及处理方法

地热资源属于清洁能源,主要通过地热井方式进行开发利用。所以,井的质量及使用寿命将直接影响着整个供暖、温泉洗浴、种植养殖等运行费用和效能。地热井在运行过程中常会因过滤管或开采层(裂隙、岩溶等)发生堵塞,导致出水量减少或不出水的问题。地热井堵塞类型可划分为物理堵塞、化学(细菌)堵塞。详细分析了各种堵塞类型的成因,结合工程实例针对不同成因提出了具体的解决方法。

Common Geological Well Blockage and the Processing Methods

Geothermal resources is a clean energy, which is mainly exploited with geothermal well. The quality and service life of the well will directly affect the whole operation cost and efficiency of heating, spring bathing, planting and breeding. The reduced water amount even no water will occur because of the blockage in filter tubes or mining layers (fissures or karst). These blockage types can be divided into physical and chemical (bacterial) blockage. The causes of various types of blockage are analyzed in detail and the special solutions are proposed according to those different engineering cases.