Diameter Series and Drill Pipe Scheme for Wire-Line Coring with Small Diameter in Ultra-Deep Borehole
详细信息
- 责任者：Sun Jianhua (Institute of Exploration Techniques ; CAGS ; Langfang 065000 ; China) ; Chen Shixun
- 刊名：Exploration Engineering
- 出版年：2013
- 卷期：40(8)
- 关键词：绳索取心 ; wire line coring ; 取心钻进 ; core drilling
- 页码：p.1-5,17
- 图表：2 illus., 7 tables, 8 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
The existing diameter series for wire-line coring are mainly suitable for shallow drilling with a depth of less than 3000 m.There is technical bottleneck such as that the designed depth cannot be reached in complex formation,when the wire-line coring is performed at a depth of about 4000 m.The demonstration on reasonable diameter series and drill pipe scheme for wire-line coring in ultra-deep borehole at the depth between 3000 m and 5000 m is an important preliminary work which can provide technical base for the development of ultra-deep borehole drilling equipment and drilling tools for wire-line coring.And it is also a public welfare and open technical work.This paper summarizes the preliminary ideas on diameter series and drill pipe scheme for wire-line coring in ultra-deep borehole with the expectation that it could receive wide participation and further demonstration from the drilling experts and technicians in China.
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