一种置于外管柱最下端单向阀，既能起到引鞋的作用又能满足循环下入的需求。 充填结束后，通过关闭充填滑套来隔离地层。 充填时防砾石进入筛管内部。

主要特性

◎ 底部球面设计，便于下钻平稳；

◎ 双阀设计，单向密封更加可靠；

◎ 开启压力小于300Psi；

◎ 中间、旁通大的流通面积。

FSF FLOAT SHOE

INTRODUCTION

Float Shoe are assembled at the bottom of COHP, which can use for check valve, float shoe and circular channel. In addition, it can prevent gravel flowing into screen when pack.

FEATURES

◎ FSF has the special design, which is convenient for running string;

◎ FSF has the double-valve design, which is more reliable;

◎ Opening pressure of FSF is less than 300Psi;

◎ FSF has a large flowing area in Middle and by-pass.

Note: Other specification products are available.