Analysis on the Second Opening of WFSD-2 Hole and Deviation Correction Construction
详细信息
- 责任者：Li Haiming (Beijing Geological Engineering Design Institute ; Miyun 101500 ; China)
- 刊名：Exploration Engineering
- 出版年：2012
- 卷期：39(1)
- 关键词：纠斜 ; deviation correction
- 页码：p.21-24
- 图表：4 illus., 3 tables, 5 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
WFSD-2 hole of scientific drilling engineering of Wenchuan earthquake fault zone has high quality requirement, and the hole deviation and coring rate are especially important. Because of complicated bore hole structure, the deviation was difficult to control by large diameter roller bit drilling. The satisfied effect was received by second opening (47.8~638.01 m) construction. The paper summed up and analyzed the construction of deviation correction.