• 责任者：Tong Qiang (No.117 Geological Team ; Bureau of Geology and Mineral Exploration and Development of Guizhou Province ; Guiyang 550018 ; China) ; Yang Pixiang
• 刊名：Exploration Engineering
• 出版年：2013
• 卷期：40(11)
• 关键词：斜孔 ; deviating hole ; 复杂地层钻进 ; drilling in complicated formation
• 页码：p.35-38
• 图表：1 illus., 3 tables, 5 refs.
• 分类号：2000
• issnNo：ISSN1672-7428
• isbnNo：CN11-5063/TD

     The paper introduces the large-angle declined hole construction in Lanhigou gold deposit of Guizhou, analyzes the application process of flushing fluid and drill bit selection and sums up the experiences of large-angle declined hole drilling.