产品说明

CS-HRA / HRB封隔器是高性能单管可回收液压坐封、剪切解封封隔器的新标准。特性包括：防止下井中途 提前坐封，改进了密封性能和提高了回收可靠性及选用了适合井下环境的冶金和弹性材料。设计简单可靠，其改进 型坐封机构可以防止封隔器在遇到高油套环空压差或进行油管压力测试时提前坐封。

主要特性

◎ 主要应用于生产，注入和层间隔离；

◎ 多封隔器单管选择性完井或双管完井；

◎ 防提前坐封要求较高的完井；

◎ 斜井或其他要求不旋转或取出设备的井；

◎ 需要在接完管线后驱替和坐封封隔器的情况；

◎ 需要在封隔器坐封前测试油管柱或多封隔器完井中需要 对封隔器进行单独坐封和测试情况。

主要优点

◎ 操作简单，便于现场应用；

◎ 液压坐封，剪切解封；

◎ 内置卸载器和旁通，辅助解封和回收；

◎ 液压内锁系统防止提前坐封；

◎ 零间隙密封元件支撑系统；

◎ 在组装封隔器时所有“O”型密封圈都进行试压；

◎ 双向卡瓦, 短而紧凑的设计；

◎ 在坐封过程中没有中心管柱运动，适合使用组合封隔器。

注：可依据客户要求提供其他规格的产品

CS-HRA / HRB HYDRAULIC-SET RETRIEVABLE PACKER

INTRODUCTION

CS-HRA / HRB packer is the new standard for high performance single string  retrievable hydraulic set, shear release packers. The CS-HRA offers features that provide maximum  pre-set prevention while running, improved sealing and retrieving reliability, and metallurgy and  elastomer selections fit for the well environment. The simple and reliable design is compliant. The  selective setting mechanism prevents the packer from premature setting when high tubing to  annulus pressure differentials are encountered or when tubing pressure tests are performed.

FEATURES

◎ Production, injection and zonal isolation;

◎ Single string selective completions or dual string completions with multiple packers; 

◎ Completions where maximum pre-set prevention while running is desired;

◎ Deviated wells or other applications where no rotation for installation or removal is desired; 

◎ Applications where displacing and setting the packers after the well is flanged up is desirable; 

◎ Stacked packer applications; 

◎ Applications where it is desirable to test the tubing string before packer setting or to  independently set and test individual packers in multiple packer completions.

BENEFITS

◎ Hydraulically set and shear release, hydraulic interlock system prevents preset;

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

◎ Zero gap back-up system; 

◎ Operationally simple, all O-rings tested during assembly of the packer; 

◎ Bi-directional slip, and short, compact design; 

◎ No mandrel movement during setting allows stacked packer applications.

Note: Other specification products are available.