地下水同井抽回井施工技术与应用研究  

Construction Technology and Application Research in Groundwater Pump and Re-injection in Same Well

作　　者：吴烨[1,2] 卢予北[1,3] 牛建设 陈莹[1,3] 

机构地区：[1]中国地质大学〈武汉〉,湖北武汉430074 [2]河南工程学院,河南郑州451191 [3]河南省深部探矿工程技术研究中心,河南郑州450053

出　　处：《探矿工程（岩土钻掘工程）》2011年第9期33-36,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：河南省科技攻关项目课题资助(102102310360)

摘　　要：地下水同井抽回井主要应用于浅层地热能开发。细颗粒地层中地下水抽回井的比例模式多数为1∶3～1∶6,不仅增加建设成本,而且造成占地面积大、管理不便和回灌困难等问题。针对该问题,通过分析和研究,利用钻探理论和水文地质条件设计了"同井抽回两用系统",实现了在同一口井内抽水和回灌之目的,并在实际工程中取得了较好的效果。就钻井设备选择、成井工艺及应用效果进行了详细阐述。Groundwater pump and re-injection in the same well is mainly applied in shallow geothermal development.For GSHP system,the proportion between pump well and re-injection wells is 1∶3~1∶6,for fine particle formation,it not only means more construction cost,but also means large site area,management inconvenience and difficult re-injection.According to the analysis and research,＂pump and re-injection in the same well＂ system was designed according to the drilling theory and hydrogeology conditions,pump and re-injection in the same well was realized with satisfied effects.The paper explained ＂pump and re-injection in the same well＂ about equipment selection,well completion technology and application effect.

关 键 词：同井抽回井 地下水 浅层地热能 设备选择 成井工艺 

分 类 号：P634[天文地球—地质矿产勘探]