井下地电阻率观测井钻井施工技术研究  

Research on drilling technology of undergroundearth resistivity observation well

作　　者：孙凯 SUN Kai(The First Institute of Hydrology and Engineering Geological Prospecting Anhui Geological Prospecting Bureau,Bengbu 233000,Anhui,China)

机构地区：[1]安徽省地勘局第一水文工程地质勘查院,安徽蚌埠233000

出　　处：《资源信息与工程》2023年第2期50-53,共4页Resource Information and Engineering

摘　　要：文章以安徽省肥西县紫蓬山地震台新建井下地电阻率观测井钻探工程为背景,根据要求进行井身结构设计、钻探设备选型、供风量计算等,确定施工工艺流程,并基于实际施工条件对施工后的井壁进行防塌效果测试。结果表明,地电阻率观测井工程建设中应用本设计方案,井径扩大率较小,可避免井壁垮塌,具有较好的防塌效果。The article is based on the drilling project of the newly built underground ground resistivity observation well at Zipengshan Seismic Station in Feixi County,Anhui Province.The paper outlined the field′s wellbody structure design,drilling equipment selection,and air supply determination according to the requirements.It determined the construction process and tests the anti-collapse effect of the shaft wall after construction based on the actual construction conditions.The results showed that this design plan can be applied to the construction of ground resistivity observation well with a smaller borehole diameter expansion rate,which can prevent the collapse of the borehole wall and has a good anti-collapse effect.

关 键 词：地电阻率 观测井 钻井施工 

分 类 号：TE24[石油与天然气工程—油气井工程]