• Model NO.：ZS31
• Stage Collar Type：Hydraulic Type and Mechanical Type
• Transport Package：Wooden Case
• Specification：5 1,2"-13 3,8"
• Trademark：ZS
• Origin：Henan

Size, in5 1/2"7"9 5/8"13 3/8"Max O.D., mmΦ170Φ208Φ283Φ381Drill-out I.D., mmΦ122Φ155Φ220Φ315Overall Length, mm1082118212221280Rated Load, t140170210300Sealing Capacity, MPa25252525Opening Pressure, MPa13131314Closing Pressure, MPa5555Lower Sliding Sleeve I.D., mmΦ85Φ115Φ176Φ203Upper Sliding Sleeve I.D., mmΦ95Φ125Φ197Φ285 
Product Advantage of Hydraulic Double Stage Collar
>>Hydraulic stage collar meets the challenges of cementing holes at any angle with a hydraulically opened port system.
>>Stage collar designed specifically for horizontal completion.
>> It is specifically used for Primary cementing in deep vertical or high deviated horizontal-well conditions.
>>It reduces total hydrostatic pressureon weak formations to prevent lost circulation during cementing.
>>Clear surface indications of opening and closing pressures provide safer and more efficient operations.
>>The opening pressure of the stage collar can be adjusted at rig site to meet well requirements, providing operational flexibility.
 
Certifications
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001.