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高分子聚合物无固相冲洗液在牛头山深钻CUSD3孔的应用研究

Sheng-hai LI,Zhi-yue MA, Xian-ming DENG,Zhi-qiang DUAN,Yuan-yuan HAN,Xiao-yang LIU,Xin KANG

Exploration Engineering(Rock & Soil Drilling and Tunneling)（2017）

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Abstract
牛头山深钻CUSD3孔是中核集团龙灿工程"相山基础地质研究"项目实施的第二个科学深钻钻孔.该孔钻遇的地层包括碎斑熔岩、流纹英安岩、片岩、板岩及千枚岩.地层裂隙发育、破碎、掉块严重,孔壁稳定性差.根据钻进施工中出现的难题,选用了高分子无固相冲洗液.应用表明,该冲洗液具有护壁性好、流动性好、减阻效果好等特点,取得了良好的效果,有效地保证该钻孔的顺利完工.
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