Numerical Calculation of Design for Cycloid Extended Reach Well Trajectory
详细信息
- 责任者：Chen Xun (Liaohe Oilfield Company Drilling Department ; PetroChina ; Panjin 124010 ; China)
- 刊名：Exploration Engineering
- 出版年：2010
- 卷期：37(6)
- 关键词：大位移井 ; extended reach well ; 井眼轨迹 ; hole trajectory
- 页码：p.1-3
- 图表：2 illus., 11 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
The trajectory of cycloid extended reach well consists of straight section-arc section-cycloid section-steady inclined section with the minimum or very small friction and friction moment. The equivalent triangle function equation is obtained by mathematical transformation and simplification; numerical iterative algorithm for triangle function equation approximate solution is put forward by interval query and bisection method. The numerical examples show that the algorithm has high calculation accuracy and quick operation with good iterative stability.