中国石油大学学报（自然科学版）Issue(5)：89-95,7.DOI:10.3969/j.issn.1673-5005.2014.05.012
冲顶开窗径向水平井转向送进关键技术
Key technology of steering feed in perforating casing to drill radial horizontal well
杨永印 1徐希强 2牛似成 3张栋 4英飞1
作者信息
- 1. 中国石油大学石油工程学院，山东青岛266580
- 2. 中国石化胜利石油工程有限公司黄河钻井五公司，山东东营257000
- 3. 中国石化华北石油局工程技术研究院，河南郑州450006
- 4. 中国石化西北石油局，新疆乌鲁木齐830000
- 折叠
摘要
Abstract
It is difficult to mill casing and ream large diameter holes with conventional radial horizontal well drilling technolo-gy. To solve the problem, a new technology design was proposed in this work, using which casing can be milled and radial horizontal wells can be drilled without reaming. A steering tool was designed to be used in 139. 7 mm casings. This steering tool uses hydraulic puncher to mill casing, and then a steel pipe with 14 mm diameter is used as drilling pipe. The results of numerical simulation and laboratory tests show that vertical hydraulic punching can meet the requirements of milling casing and the drill pipe is able to overcome the resistance and drill forward with 45 MPa hydraulic pressure. The results also indi-cate that when the tilting angle of the punch is 11o, it can align the drill pipe completely and effectively drill the horizontal hole to a long extension. It is proved that using hydraulic puncher combined with metal drilling pipe can achieve ultra short radius radial penetration operation and lay foundations for the next step, during which a hydraulic drilling bit is used to effi-ciently break the rock with high pressure water jet.关键词
水平井/转向器/液压冲顶/钻管/数值模拟Key words
horizontal well/steering/hydraulic puncher/drilling pipe/numerical simulation分类
能源科技引用本文复制引用
杨永印,徐希强,牛似成,张栋,英飞..冲顶开窗径向水平井转向送进关键技术[J].中国石油大学学报（自然科学版）,2014,(5):89-95,7.
