Application of Air DTH Hammer Technology to Fast Drilling in Red Beds of Yunnan Province
详细信息
- 责任者：Lu Yubei (Faculty of Engineering ; China University of Geosciences ; Wuhan 430074 ; China)
- 刊名：Geology and Prospecting
- 出版年：2011
- 卷期：47(2)
- 关键词：潜孔锤钻进 ; down-hole hammer drilling
- 页码：p.309-315
- 图表：5 illus., 2 tables, 20 refs.
- 分类号：2000
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
During the implementation of the project to search water in red beds of Yunnan Province, the air DTH hammer has finished 650.5 m drilling at one well on average in 20 days. Compared with the traditional drilling technology, it has increased the drill footage by 235.2% on average with maxim up to 337%. And the average output of water by a signal well is increased by 140.8% on average with maximum 235.7%. The effort of water-search using the air DTH hammer technology has achieved remarkable economic and social effects. This paper presents the details of technical approach, equipment choice, and application effects of air hammer drilling technology.