Technology of DTH Drilling with Simultaneous Casing and Its Application

详细信息   

• 责任者：Zhao Jianqin （Institute of Exploration Technology ; CAGS ; Chengdu 611734 ; China） ; Li Zizhang
• 刊名：Exploration Engineering
• 出版年：2008
• 卷期：35(7)
• 关键词：跟管钻进 ; drilling with casing
• 页码：p.55-59
• 图表：7 illus., 3 refs.
• 分类号：2000
• issnNo：ISSN1672-7428
• isbnNo：CN11-5063/TD

摘要

Drilling with simultaneous casing technology has been developed to be an effective method to deal with drilling in complicated formation. This paper introduced the characteristics of DTH drilling with simultaneous casing technology, SP series of simultaneous casing drilling tool and the application of DTH drilling with simultaneous casing technology in drilling in complicated formation, such as control of geological hazard, hydropower construction, foundation treatment for urban high-rise building, highway and railway construction.