Improvement of Deep Hole Drilling in Coal Explorationoft-com:office:office" />
详细信息
- 责任者：Mo Shuquan (104 Geological Party ; Guizhou Bureau of Geology and Mineral Exploration & Development ; Duiyun 558000 ; China) ; Huang Lin
- 刊名：Guizhou Geology
- 出版年：2011
- 卷期：28(1)
- 关键词：煤矿 ; coal mines ; 复杂地层钻进 ; drilling in complicated formation
- 页码：p.70-73
- 图表：2 illus., 1 table, 3 refs.
- 分类号：2000
- issnNo：ISSN1000-5943
- isbnNo：CN52-1059/P
摘要
///Deep hole drilling is an important method for the present geologic exploitation, especially for the coal exploration. By analysis the former example, the successful experiences of good quality machine, optimized drilling structure, sleeve and high quality mud fluid wall protection in the deep hole drilling in the coal exploration.