顶部封隔器是一种高性能可回收式封隔器，可用于砾石充填防砂作业、水平井砾石充填作业、简易防砂作业或单独作为封隔器使用。可悬挂井筒管柱的重量，引导流体的 流动方向，承受上、下压差；在下入、坐封、丢手时，承担拉伸和压缩载荷，同时入井时可传递较大扭矩。

主要特性

◎ 下入、坐封、回收过程中无需旋转管柱；

◎ 锁紧机构不易脱扣，可靠性高；

◎ 胶筒承压能力强；

◎ 表面渗碳的卡瓦易于切入P110及更硬的钢级的套管；内通径大，易于后续施工作业；

◎ 工具遇阻或下入困难时可旋转管柱。

TOP PACKER

INTRODUCTION

Top packer is high- performance retrievable, used in gravel pack sand-control operation, horizontal well gravel pack, stand-alone completion or as separate packer. Bearing the weight of the wellbore string, leading the direction of the fluid, sustaining the up-down differential pressure; bearing extension and compression loading when tripping in, setting and releasing, also delivering bigger torque when tripping in well.

FEATURES

◎ No need of rotating string during tripping in, setting and retrieving;

◎ Not easy releasing in locking system, high reliability;

◎ Strong pressure bearing ability of rubber sleeve;

◎ Surface carburization slips easily cutting in casing with steel gradeP110 or higher;

◎ Big Internal drift diameter, convenient for following operations;

◎ Rotating string when tool meeting resistance or tripping-in difficulty.

Note: Other specification products are available.