摘要
组合式高强度环形磁铁防溢管是在常规防溢管的基础上，采用高强度环形磁铁，用弧形门装环磁，磁铁可拆换。在保证防溢管的对剖和导流功能的基础上进行了一些革新，使防溢管低压区的结构合理、功能增加，对井口操作中不慎落井的铁件等可有效捞获。文中还对其结构、作用、加工、安装及使用作了介绍。
This kind of bell-nipples are developed on the basis of conventional bell-nipples, adopting high-strength annular magnets which are arcuate door installed. These magnets are removable. Some innovations on bell-nipples have rationalized the structure of low pressure area, enhanced their functions. They even can fish effectivelly iron pieces which have fallen into bottomhole from wellhead. The paper introduces their structures, functions, manufacturing, mounting and application.
出处
《钻采工艺》
CAS
1998年第5期51-52,共2页
Drilling & Production Technology
