- Place of Origin: Henan, China (Mainland)
- Brand Name: zs
- Model Number: 13 3/8"
- Type: stage cementing tools
- Machine Type: Drilling Tool
- Use: Well Drilling
Packaging & Delivery
|Packaging Details:||wooden case|
Specificationsmechanical stage cementing collar
1. Open through pressure difference.
2. Inner closing structure
3. Non- rotation
Hydraulic Stage Cementer features inner closing structure, opening through pressure
difference. The closing plug drives the closing sleeve down and then shut circulation
1. Opening pressure can be adjusted and it is not subjective to hole angle.
2. The pressure-relief design prevents fluid trapping and compression during the closing phase of the tool's operation.
3. The I.D of upper/lower sub is the same as that of casing, but smaller than that of closing sleeve, which can minimize chances of damages to the closing sleeve.
4. The inner seats are made of an easily drillable butyronitrile rubber / aluminum material. Both the opening and closing seats lock against rotation for easy drill-out.
Max O.D., mm
Drill-out I.D., mm
Overall Length, mm
Rated Load, t
Sealing capacity, MPa
Opening Pressure, MPa
Closing Pressure, MPa
Lower Sliding Sleeve I.D., mm
Upper Sliding Sleeve I.D., mm