龙口市浅层地温能赋存条件及开发适宜性分区

浅层地温能作为绿色可再生能源，若能得到广泛应用可大大降低城市建筑能耗、缓解环保压力。本文通过现场热响应试验、水文地质钻探与调查研究，查明了龙口市研究区范围内地层的热物性参数、水文地质条件、地温场特征及浅层地热赋存条件，结合层次分析法与指标法展开适宜性分区，并得到以下研究成果：研究区浅层地温能主要分布于深层黏土、砂层及基岩中；钻孔平均导热系数为2.11W/m·K，平均换热量为42.53W/m；研究区地下水型换热系统适宜区面积为0.995km2，适宜性中等区面积为29.21km2，适宜性差区面积为34.795km2；地埋管型换热系统适宜性中等区面积为59.886km2，适宜性差区面积为4.94km2。

Occurrence Conditions and Development Suitability of Shallow Geothermal Energy in Longkou City

Shallow geothermal energy is green renewable energy. If it is widely used, it can greatly reduce the energy consumption of urban buildings and relieve the pressure of urban environmental protection. Through field thermal response test, thermophysical property test, hydrogeological drilling and investigation, the thermophysical parameters, hydrogeological conditions, geothermal field characteristics and shallow geothermal storage conditions of the strata in the working area have been identified. Combining with AHP and index method, the suitability zoning has been carried out, and the following research results have been obtained. The shallow geothermal energy in the working area is mainly distributed in the deep clay, sand and bedrock. The average thermal conductivity of the borehole is 2.11w/m·K, and the average heat exchange is 42.53W/m. The suitable area of ground water heat pump in the working area is 0.995km2, the medium suitable area is 29.21km2 and the unsuitable area is 34.795km2. The suitable area of ground heat pump is 59.886km2, and the unsuitable area is 4.94km2.