Optimizing Design of Well Trajectory for Extended Reach Well with Long Horizontal Section
详细信息
- 责任者：Dou Yuling (Shengli Drilling Technology Research Institute ; Dongying 257017 ; China)
- 刊名：Exploration Engineering
- 出版年：2011
- 卷期：36(7)
- 关键词：水平井 ; horizontal wells ; 大位移井 ; extended reach well ; 井眼轨迹 ; hole trajectory
- 页码：p.50-52
- 图表：1 illus., 4 tables, 5 refs.
- 分类号：2000
- 出版序号：2122
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
Friction and torque are main factors that hinder extending of long horizontal section well. Optimization of well trajectory is one way to reduce friction and torque. Friction and torque of various well profiles with different build-up rate and different displacement before target are calculated, and the influence of friction coefficient on various well profiles is analyzed. The results show that low build-up rate and simple trajectory are suitable for extended reach horizontal well with long horizontal section.