CS-HI 封隔器是一种双向卡瓦、可回收式液压生产封隔器，通过直接上提管柱解 封，无方向的上卡瓦解封系统可减少收缩卡瓦所需要的上提力。该解封系统首先使解封 卡瓦脱位，然后触发其它卡瓦收缩解封。 CS-HI 封隔器主要用于先装好井口后再坐封封隔器的完井中，也可用在斜井、气 举井和不适合用机械坐封封隔器的完井作业中。CS-HI 系列封隔器的压力平衡系统可 平衡封隔器上下的压差。

主要特性

◎ 下井前上提解封力很容易进行调节； 

◎ 所有部件处于锁定状态，可防止提前坐封；

◎ 具有上卡瓦收缩解封系统；

◎ 平衡系统可平衡封隔器上下的压差； 

◎ 解封剪钉不受压差的影响；

◎ 直接上提解封。

CS-HI HYDRAULIC-SET RETRIEVABLE PACKER

INTRODUCTION

     CS-HI Packer is bi-directional slip retrievable hydraulic production packer released by straight pulling  the tubing string upward. The non-directional upper slip releasing system can reduce the upward  pulling force on the slip. Dislocating a key non-directional slip first triggers an automatic release of the  other slips .  CS-HI packer is recommended for use in well completions where the packer will be set after the  well has been flanged up, as well as in deviated wells, gas-lift wells, and other completions where a  mechanical-set packer is not suitable. The equalizing system of the packer can equalize the pressure  differential between upper and lower.

FEATURES

◎ Operationally simple;

◎ Field adjustable shear release; 

◎ Built-in unloader and bypass-to aid in releasing and retrieving; 

◎ Pack-off is mechanically locked and constantly reinforced by hydrostatic pressure; 

◎ Triple seal multi-durometer elements-insure pressure integrity over a wide range of Temperatures  and conforms easily to casing irregularities;  

◎ Bi-directionally anchored, able to withstand pressure differential from two directions; 

◎ No mandrel movement during setting allows stacked packer applications.

Note: Other specification products are available.