Hydraulic Stage Cementing Collar

1.Hydraulic type
2.Top/Closing Plug and First Stage/Flexible Plug
3.Battle Plate/Free Fall Opening Device/Battle Plate
4.Available in sizes 5-1/2" to 13-3/8"
5.API 5CT specification

■ Product's advantage

>>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.

Technical Parameters:

Size, in	5 1/2”	7”	9 5/8”	13 3/8”
Max O.D., mm	Φ170	Φ208	Φ283	Φ381
Drill-out I.D., mm	Φ122	Φ155	Φ220	Φ315
Overall Length, mm	1082	1182	1222	1280
Rated Load, t	140	170	210	300
Sealing Capacity, MPa	25	25	25	25
Opening Pressure, MPa	13	13	13	14
Closing Pressure, MPa	5	5	5	5
Lower Sliding Sleeve I.D., mm	Φ85	Φ115	Φ176	Φ203
Upper Sliding Sleeve I.D., mm	Φ95	Φ125	Φ197	Φ285