深厚漂卵石地层中超大直径钻井冲抓工艺的研究及应用
投稿时间：2010-09-14  修订日期：2011-10-15  点此下载全文
引用本文：张宁,杨宗仁,袁洁,等.深厚漂卵石地层中超大直径钻井冲抓工艺的研究及应用[J].钻探工程,2011,38(11):65-67.
ZHANG Ning,YANG Zong-ren,YUAN Jie,et al. Study on Impact Grab Ultra Large Diameter Drilling in Deep Gravel Boulder Formation and the Application[J]. Drilling Engineering, 2011,38(11):65-67.
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作者单位E-mail
张宁* 河北金汇岩土工程有限公司  
杨宗仁 河北金汇岩土工程有限公司 hbjkyzr@sina.com 
袁洁 河北省地质矿产勘查开发局  
杨广 河北金汇岩土工程有限公司  
刘占军 河北金汇岩土工程有限公司  
中文摘要:介绍了在直径8.3 m、深度285 m钻井井筒内，应用冲抓锥抓取漂卵石进尺并与回转钻进工艺相结合，完成超大直径钻井的工艺技术。主要包括冲抓设备参数的选取、冲抓工艺及技术参数的确定等。
中文关键词:漂卵石地层  超大直径钻井  钻井施工  冲抓工艺
 
Study on Impact Grab Ultra Large Diameter Drilling in Deep Gravel Boulder Formation and the Application
Abstract:The paper presented the application of cone grab in grabbing gravel footage and combining with rotary drilling technology for ultra drilling in bored shaft with diameter of 8.3m and depth of 285m, and introduced the parameter selection for grabbing equipment, grabbing process and the determination of technical parameter.
keywords:gravel boulder  ultra large diameter drilling  drilling construction  grabbing process
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