在充填过程中提供砾石充填的通道，由特殊结构的开关工具打开、关闭。充填结束后，通过关闭充填滑套来隔离地层。

主要特性

◎ 金属材料可选P110、T95、N80等级别；

◎ 特殊的结构设计保证除开关工具以外的管柱台阶不会误开关滑套；

◎ 大的过流面积设计减小充填摩阻。

SLIDE SLEEVE

INTRODUCTION

Slide Sleeve can provide for COHP an inner path while gravel-pack, which can be opened and closed by appropriate tools. In addition, closing slide sleeve can isolate formation after pack.

FEATURES

◎ Several different steel grade of MCF are available, such as P110,T95,N80 etc;

◎ MCF with special structure design can avoided opening or closing by mistake;

◎ MCF can decrease pack friction by the design of large flow area.

Note: Other specification products are available