唐山市第一眼蓟县系地热井钻探及成井技术

Exploration Engineering (Rock & Soil Drilling and Tunneling)(2014)

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Abstract
唐山市丰南区ZK1地热井终孔深度3204.8 m,成井深度较深,揭露地层情况较为复杂,采用“四开”井身结构。施工过程中,根据钻遇地层情况的变化,及时调整钻具组合及钻进、钻井液等参数,降低了由于地层变化较大而产生漏浆、掉块、井壁垮塌等造成埋钻、卡钻的施工风险,保证了孔内钻探施工安全及成井质量,为唐山地区相同或此类地层的地热井勘探施工提供了成功经验。
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