Description

SYFJ Stage Collar

 

The stage collar is mainly used for multistage cementing operations, aiming to solve the cementing technical problems encountered in deep wells, luben@youlongpetro.com Whatsapp+8615972752793 complex wells, long-segment sealed wells, and wells with prone leakage formations.

Common Specifications and Technical Parameters Table

No.	Product	Specification	Temperature Resistance℃	Opening Pressure psi	Closing Pressure psi	Sealing Pressure psi
1	Stage Collar	51/2″	180	2500-3000	700-1100	7000
2	Stage Collar	7″	180	2500-3000	700-1100	7000

Technical Feature

➢ By installing a self-locking device, luben@youlongpetro.com Whatsapp+8615972752793 the shut-off valve can be permanently closed;

➢ The opening and closing operations are reliable, and the pressure can be adjusted;

➢ The internal components and accessories have good drillability. luben@youlongpetro.com Whatsapp+8615972752793 They are equipped with a self-locking mechanism, making them easy to remove;

➢ Multi-sealing design, with excellent sealing performance,luben@youlongpetro.com Whatsapp+8615972752793 high temperature resistance and corrosion resistance;

➢ Optional replaceable opening plug can be equipped to meet the requirements of continuous cement injection operations.

Applied Range

➢ Excessive cement volume in a single cementing operation;

➢ The pressure-bearing capacity of the strata is too low and prone to leakage; ➢ Sealing off special geological layers; luben@youlongpetro.com Whatsapp+8615972752793

➢ Prevent the leakage of formation gas after cementing;

➢ The temperature difference between the upper and lower sections of the sealing section is large, making it difficult to adjust the performance of the cement slurry; Whatsapp+8615972752793 www.youlongpetro.com

➢ The specifications range from 4 1/2″ to 9 5/8″.