Comprehensive Treatment of Drilling Construction in Complex Formation of Daxigou Mining Area
详细信息
- 责任者：Zhai Dongxu (No.1 Geological Team ; Henan Provincial Non-Ferrous Metals Geological and Mineral Resources Bureau ; Zhengzhou 450016 ; China)
- 刊名：Exploration Engineering
- 出版年：2012
- 卷期：39(10)
- 关键词：复杂地层钻进 ; drilling in complicated formation
- 页码：p.32-35
- 图表：illus., 5 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
Drilling construction is very difficult in the complex formation of Daxigou mining area in Song County of Henan Province with multi-structure and broken brittle fragment formations.Water gushing,leakage,diameter shrinkage and block-falling occurred frequently with some boreholes abandoned.According to the formation characteristics and construction difficulties,pertinent technical measures were taken in equipment selection,borehole structure,washing fluid and cementing with good effects.The experience of drilling construction was summed up in this paper.
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