350℃高温热采封隔器用于稠油热采井蒸汽吞吐、蒸汽驱、SAGD工艺，封隔油层以上的油套环空，防止高温蒸汽上窜到套管和隔热管组成的环形空间，从而达到减少井筒热损失，保护套管和水泥环的目的。是一种液压坐封、双向锚定、上提管柱解封、可实现同井抽注双重功能的封隔器。

主要特性

◎ 耐高温350℃，工作压差21MPa； 

◎ 液压管线控制坐封； 

◎ 具备自补偿功能； 

◎ 具备注氮气/洗压井通道； 

◎ 中心管隔热，减小热量损失；

◎ 双向卡瓦锚定； 

◎ 可通过调整剪钉来调整剪切力和坐封力； 

◎ 组合式密封胶筒，长期高温下仍能保证良好的密封性。

350℃ THERMAL RECOVERY PACKER

INTRODUCTION

350℃ thermal recovery packers mainly used in heavy oil thermal recovery well cyclic steam stimulation,  displacement, SAGD process to reduce heat loss, protect casing and cement sheath by pack casing  annular above oil layers and avoiding steam up cross into annular space of casing and cement sheath. The packer is the one of hydraulic-seal, bi-directional anchor and be unlocked by lifting the string, can  realize the dual function of pumping and injection in the same well.

FEATURES

◎ Temperature rating: 350℃ , pressure rating: 21MPa; 

◎ Hydraulic pipeline control setting; 

◎ With self-compensation function; 

◎ With nitrogen injection/washing and controlling channels; 

◎ The central tube is insulated to reduce heat loss; 

◎ Two-way slips anchoring; 

◎ The shear force and setting force can be adjusted by adjusting the shear nails; 

◎ Using specially made packer rubber to ensure seal in steam stimulation process.

Note: Other specification products are available.