兰州地热井K1井施工工艺  

Construction Technology of Geothermal Well K1 Well in Lanzhou

作　　者：张云 张哲妮 高亮 杨风良 刘现川 Zhang Yun;Zhang Zheni;Gao Liang;Yang Fengliang;Liu Xianchuan(The Second Geological Team of Hebei Coal Field Geology Bureau(Hebei Dry and Hot Rock Research Center),Xingtai,Hebei,054001;Technological Innovation Center for Exploration and Development of Dry and Hot Rock Geothermal Resources of Hebei Province,Xingtai,Hebei,054001;Xingtai Deep Earth Resources Exploration and Development Technology Innovation Center,Xingtai,Hebei,054001;Henan Electric Power Survey and Design Institute Co.,Ltd.,Power China Construction Group,Zhengzhou,Henan,450007)

机构地区：[1]河北省煤田地质局第二地质队(河北省干热岩研究中心),河北邢台054001 [2]河北省干热岩型地热资源勘查开发技术创新中心,河北邢台054001 [3]邢台市深地资源勘探开发技术创新中心,河北邢台054001 [4]中国电建集团河南省电力勘测设计院有限公司,河南郑州450007

出　　处：《中国井矿盐》2024年第5期21-22,25,共3页China Well and Rock Salt

摘　　要：甘肃省兰州市七里河区西部欢乐园内地热勘探井2501.63m,采用水源钻机TSJ3000,钻遇地层中遇到石膏地层300多米,对泥浆造成严重破坏。在石膏地层通过对泥浆进行合理的调控,预防了缩径卡钻事故。在1900~2300m期间进尺慢,钻头胎体磨损严重,通过取芯分析,对地层进行判断选出合适的钻头。本文通过对K1井施工工艺的探讨,为以后在兰州地区地热井施工提供宝贵的经验。The thermal exploration well 2501.63m in Joy Garden,West of Qilihe District,Lanzhou City,Gansu Province,was drilled with water source drilling rig TSJ3000.The gypsum stratum was more than 300m in drilling,which caused serious damage to the mud.Through reasonable control of mud in gypsum formation,the accident of reducing diameter and sticking is prevented.During 1900-2300m,the penetration rate was slow and the bore of the drill head was seriously worn.Through coring analysis,the formation was judged and the appropriate bit was selected.Through the discussion of the construction technology of K1 well,this paper provides valuable experience for the construction of geothermal well in Lanzhou area.

关 键 词：K1井 泥浆钙侵 卵砾石层 钻头 

分 类 号：TS32[轻工技术与工程]