内蒙古哈素海地热井施工技术

Construction Technology of Hasuhai Geothermal Well in Inner Mongolia

总结了内蒙古哈素海旅游景区内一眼地热井的施工经验。该井完钻井深2232.59m,使用石油30型钻机施工,回转正循环三牙轮钻头全面钻进,配合PDC钻头取心钻进工艺。三开井身结构,80目包网缠丝滤水管。成井后水温、出水量均满足设计要求。同时介绍PDC钻头泥包的判断及预防措施。

This paper summarizes the construction experience of a geothermal well in Hasuhai scenic spot of Inner Mongolia.The well completion depth is 2232.59 m,Petroleum 30 type drilling rig was used by full face drilling with rotary positive three-cone bit and matching with PDC bit coring drilling process.This geothermal well has 3-spud structure,80 mesh wrapped 80 mesh wire wrapping filter pipe.Both the water temperature and the water output meet the design requirements after well completion.The judgment and prevention measures of PDC bit balling are introduced.