Key Technology and Equipment of 2 000 m Core Drilling
详细信息
- 责任者：Zhang Jinchang (Institute of Exploration Techniques ; CAGS ; Langfang 065000 ; China) ; Liu Fanbai
- 刊名：Exploration Engineering
- 出版年：2012
- 卷期：39(1)
- 关键词：全液压钻机 ; full-hydraulic operated drill ; 取心钻进 ; core drilling
- 页码：p.3-8
- 图表：9 illus., 7 tables, 7 refs.
- 分类号：2000
- 出版序号：20130621
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
This paper introduced the main achievements of “key technology and equipment of 2 000 m core drilling” in the “863” project: integration of drilling equipment and core drilling apparatus has been completed to form the ability of deep core drilling construction and demonstration. The specific project of crisis mine ZK43-1 construction in Jinqingding mine was finished with good borehole quality of termination depth 2 212.80 m, average drilling efficiency 1.65 m/h and core recovery 98.6%. In this borehole construction, 3 pieces of record of depth in drilling and casing in China were created. And some experiences were accumulated.
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