Practice of Wire-Line Coring Drilling Technology for Deep Hole in Soft Sedimentary Rocks

• 责任者：Sun Dexue (Jilin Bureau of Geology and Mineral Exploration ; Changchun 130061 ; China) ; Chen Wei
• 刊名：Exploration Engineering
• 出版年：2010
• 卷期：37(1)
• 关键词：取心钻进 ; core drilling ; 绳索取心 ; wire line coring
• 页码：p.16-19
• 图表：4 illus., 6 refs.
• 分类号：2000
• issnNo：ISSN1672-7428
• isbnNo：CN11-5063/TD

In 2 years of construction practice, the new attempt was made on wire-line coring drilling technology for deep hole in soft formation about the technical equipment matching, borehole structure design, machine & bit selection and washing fluid. The practice proved that wire-line coring technology was feasible for deep hole drilling in soft formation, and drilling monthly efficiency increased over one time with good borehole quality and lower labor.