A float collar is placed at the top of the float joint and a float shoe placed at the bottom to prevent reverse flow of cement back into the casing after placement.
浮箍是放置于浮动接头之上的，而浮鞋则是放置于浮动接头之下，以防止水泥浆回流到套管内。
The top plug has a solid body that provides positive indication of contact with the landing collar and bottom plug through an increase in pump pressure.
顶塞具有一个实心的塞体，根据泵压的增加它能可靠地显示与止塞箍和底塞的接触。
A stop collar is set on the bottom of the suspender, safe and sturdy to use;
输液吊杆下端设有限位套，使用安全、牢固；
A stop collar is set on the bottom of the suspender, safe and sturdy to use;
输液吊杆下端设有限位套，使用安全、牢固；
应用推荐