产品详情介绍
能产生浮力的套管引鞋或接箍称为浮箍或浮鞋。由于浮鞋或浮箍的耐高温性、密封性和可钻性好，连接方便，因而可代替引鞋、套管鞋等。浮箍或浮鞋不仅可用于一般技术套管和油层套管，而且也可用于深井、超深井及特殊工艺井。
按下井时钻井液得进入方式，浮箍、浮鞋可分为普通型盒和自灌型。The float shoe or float collar is a kind of casing shoe or coupling which can produce buoyancy. With advantages of high temperature resistance,good sealing feature and easy connection,it can be used to replace guide shoe or casing shoe. The float shoe and float collar can be not only used in unclassified technical casing,oil casing but also in deep well,extra-deep well and special technology well.
The float shoe which is connected at end of casing string functions as guide or back pressure valve. The float collar which is connected at 20-30meters from the end of casing serves the functions of supporting ring and back pressure valve
