毕节试验区矿泉水勘查WLCK1井施工技术  

Construction technology of mineral water exploration Well WLCK1 in Bijie test area

作　　者：陈涛[1] 赵华宣[1] 陈浩[1] 高峰[1] 贾玉川[1] 曾远明[1] CHEN Tao;ZHAO Huaxuan;CHEN Hao;GAO Feng;JIA Yuchuan;ZENG Yuanming(114 Geological Team,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Zunyi Guizhou 563000,China)

机构地区：[1]贵州省地质矿产勘查开发局114地质大队,贵州遵义563000

出　　处：《钻探工程》2023年第S01期316-322,共7页Drilling Engineering

基　　金：贵州省地质矿产勘查开发局科研项目“贵州西北部饮用天然矿泉水资源勘查钻探施工技术研究”(编号:黔地矿科合[2023]14号);贵州省地质勘查基金项目“贵州省水文地质志修编”(编号:DKJJ2021-01号)。

摘　　要：WLCK1井是一口探采结合矿泉水勘查井,井深201.38 m,勘探终孔直径150 mm,钻遇地层为侏罗系中统上沙溪庙组,揭露两条矿泉水特征水质指标差异大的富水断裂构造带。勘查井实施中需解决工艺/材料不污染地层、实时准确获取各出水层位置和涌水量及矿泉水界限特征指标、克服大涌水含水层对最优价值矿泉水资源含水层和成井结构确定及成井时水泥固结封隔等技术难题。施工中根据钻遇地层结构特征采用空气潜孔锤(复合片)钻进工艺、铝酸盐水泥固井、套管临时止水与多层次抽水及内插法固井等有效技术措施,保证了勘查井成井质量和最优价值矿泉水资源的获取,对类似矿泉水勘查井施工有重要借鉴和参考意义。Well WLCK1 is a mineral water well integrating exploration and mining,with Well depth of 201.38 meters,and a final hole diameter of exploration isØ150mm.It’s drilled to Shaximiao formation(Mesozoic red layer)of middle jurassic system and disclosed that two water‑rich fault structure zones in which mineral water characteristics quality indicators are greatly different.In the implementation of exploration wells,the technical problems should be solved,for example,the formation of pollution‑free processes/materials.The location of each water outlet layer,the amount of water intake and the limit characteristic index of mineral water are obtained in real time and accurately.To overcome the influence of large inflow aquifer on determining the optimal value of mineral water resource aquifer and well structure;Cementing and sealing during well completion.It’s required to adopt some technical measures,such as air drill hammer/composite drilling technology,cementing well with aluminate cement,sealing the water temporary wihtcasing,multi‑level pumping and using insert‑type to cement well based on drilling geological structure.Finally,the optimal mineral water is achieved and high well quality is also achieved.That’s a reference to construction of similar mineral water exploration well.

关 键 词：矿泉水勘查井 空气钻进 临时止水 多层次抽水 铝酸盐水泥 内插法固井 

分 类 号：P634[天文地球—地质矿产勘探]