Discussion of Sidetracking Technology for φ311.15 mm Borehole of DP6 Horizontal Well
详细信息
- 责任者：Liu Wenbing (Wupu Drilling Company ; North China Petroleum Bureau ; SINOPEC ; Xinxiang 453700 ; China)
- 刊名：Exploration Engineering
- 出版年：2011
- 卷期：38(12)
- 关键词：侧钻 ; sidetracking ; 水平井 ; horizontal wells
- 页码：p.27-31
- 图表：2 illus, 5 tables, 6 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
DP6 well is a long horizontal well in Daniudi gas field, its designed kickoff point was at 2 510.00 m depth, drilling with average building up rate of 4.85°/30 m to target A in φ311.15 mm borehole, and penetrating the target strata at 3 033.05 m depth with increasing angle to underlie coal seam. This paper analyzed sidetracking technology, selection of sidetracking point, trajectory adjusting for sidetracking, difficulties in large hole deviation sidetrack drilling and the relative technical measures. The drill assembly and construction of sidetracking were also introduced.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |