Main tieback stem is protected by injecting ethylene glycol into wellhead. 回接主管道通过在井口注入乙二醇进行保护。
Casing tieback is a special technology usually used in offshore drilling. 套管回接技术为海洋石油钻井工程的一项特殊钻井工艺技术。
This paper introduces the procedure, mechanism and operation of wellhead tieback techniques and points out the problems necessary to be solved. 本文介绍了井口回接作业的程序、机理、作业施工情况,并指出了需改进的地方。
The tie-back assembly is a special cementing tool for tieback operation. 与回接筒配套用于回接尾管的一种专用固井工具。
Application and innovation of subsea wellhead tieback technology in marginal oilfield development 水下井口回接工艺在边际油田开发中的应用及改进
Application of prestress tieback and concrete wall in the foundation pit excavation Analysis of the Reasons on Gunite Lining Failure During Drift Excavation and the Preventive Measures 预应力锚板墙支护技术在深基坑开挖中的应用锚喷支护巷道崩壳开裂原因分析及预防实践
Monitoring of Tieback Prestress at Dongfang Square, Beijing 北京东方广场锚杆预应力监测
E. because the serious casing wear problem was always encountered in the process of operating, through the patching, tieback and replacement of the casing and protecting the casing against wear, it was ensured to run the 244 mm casing to the designed setting depth; 在施工过程中遇到了严重的套管磨损问题,通过修补回接更换部分套管和对套管进行保护,保证了244mm套管下到设计井深;
The monitoring of tieback prestress and its existing problems are discussed for foundation pit protection at Dongfang Square, Beijing, and the problems in the tensile, such as the loss of prestress, bias in loading, are explained. 对北京东方广场基坑支护中锚杆预应力的监测及其所出现的问题进行了分析,说明张拉过程中所存在的问题(预应力损失、偏心荷载等)。
In the operation process, the tool matching preparation, the technology of casing cutting and milling and the casing tieback are researched. 在取换套管施工过程中,对工具的配套准备、套管割铣工艺及套等回接技术等进行了应用研究,取得了良好的效果。
How to protect the integrity of the rocks around the tunnel tieback is a crucial construction control point. 如何保护隧道式锚碇周围围岩的完整性是一项很关键的施工控制要点。
New liner tieback cementing technology in high-pressure gas-oil wells 高压油气井尾管回接固井新技术
Experimental study on mechanism of pull-out resistance of belled tieback 扩底土锚抗拔承载机理的试验研究
Design and Mechanical Analysis of Multilateral Well Tieback and Deflector Equipments 分支井回接重入装置设计及力学分析