摘要
鉴于API标准S135钢级Ф88.9和Ф101 mm钻杆均不能适应以深井、大位移井为主的苏里格气田的施工要求,推广应用了非标钻具进行施工。推广措施包括非标螺纹钻具设计和配套工具的改进。钻杆接头选用双台肩非API标准螺纹ST39,锥度为1∶12。将吊卡台肩上部开口直径改为127 mm,高度不变。方钻杆采用107.95 mm非标四方钻杆。现场应用结果表明,研制的Ф101mm非标钻具及配套工具管体和接头的抗拉、抗扭强度较API标准螺纹更加合理,更加符合长水平段水平井钻井施工要求。
The API standard S135 steel grade Ф88.9 mm and Ф101 mm drill pipes are not suitable for the re- quirement of drilling operation in Sulige Gasfield, which has many deep wells and extended reach wells. Therefore, the non-API drill pipe was applied in this gasfield by means of designing non-API threaded drilling tool and improving matching tools. The non-API thread ST39 with double shoulders was selected as the tool joint with the taper being 1： 12. The upper opening diameter of the elevator shoulder was modified as 127 mm with the height remaining unchanged. The non-API 107.95 mm square kelly was adopted as the kelly. The field application shows that the ten- sile and torsional strength of the pipe body and joint of the non-API 0101 mm drill pipe and the matching tools are more reasonable than API standard thread and more suitable for drilling long horizontal wellbore.
出处
《石油机械》
北大核心
2012年第5期29-32,共4页
China Petroleum Machinery
基金
胜利石油管理局2011年石油工程技术先导试验和推广应用项目(GXD1101)
关键词
非标钻具
苏里格气田
台肩
钻杆接头
吊卡
non-API drill pipe
Sugeli Gasfield
shoulder
tool joint
elevator
