Drilling Technology of Large Diameter Diamond Wire-Line Coring Drilling in Complex Formation of Fengtai Ore Field
详细信息
- 责任者：Yang Haizhu (No.717 Team ; Northwest Non-Ferrous Geological Exploration Bureau ; Baoji 724212 ; China)
- 刊名：Exploration Engineering
- 出版年：2011
- 卷期：38(8)
- 关键词：复杂地层钻进 ; drilling in complicated formation ; 绳索取心 ; wire line coring ; 取心钻进 ; core drilling
- 页码：p.16-18
- 图表：3 tables, 6 refs.
- 分类号：2000
- 出版序号：20122778
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
This paper introduced the application of large diameter diamond wire-line coring drilling tool in complex formation of Fengtai ore field and the construction process. According to the problems of collapsing and block falling in borehole, low construction efficiency, difficult coring and low quality of construction, the effective measures of drilling method, borehole structure, borehole protection, drilling parameter, reducing resistance by lubrication and drilling tool grading were put forward, the efficiency of drilling construction and engineering quality were improved.