Offcentre-tube-expander is a kind of repair tool invented by Daqing Petroleum and Gas Ltd.
偏心胀管器是大庆油田有限公司发明的一种油水井大修工具,广泛应用于小通径错断或大变形套损井的扩径修复。
The technique contains padding,expanding for deformed casing,grinding and milling,which ensure the normal operation.
经过几年的研究及实践,形成了一套适应稠油区域的套管修复技术,其中包括套管补贴技术、套管变形井的胀管修复技术、动力螺杆钻具高效磨铣技术、低压亏空地区的连续冲砂工艺技术,应用在生产中,有效的保证了采油厂的生产运行。
FEM simulation research of axial displacement for expanded solid expandable tubular;
实体膨胀管膨胀后轴向位移有限元数值模拟
The technique of expandable tubular setting branch well involves the research scope and main techniques of branch well drilling and completion included in national 863 research project "Controllable(closed loop) 3D trajectory drilling technology".
膨胀坐挂定位分支井技术具有以下特点:①采用膨胀管作为坐挂工具,操作简便;②可对老井套管起到保护作用,无需采用传统的卡瓦式坐挂工具;③膨胀管坐挂膨胀后留在井筒内的内径大,便于下入修井工具及井下作业。
The relationship cone angle solve the problem that the threaded coupling of expandable tubular could,this paper design variable diameter expansion tool based on mechanical principle,the variable diameter expandable tool is consisted of six expandable blocks which can mo.
目前的膨胀工具对膨胀管的螺纹接头不能实现高膨胀率。