Hydraulic Stage Cementing Collar
DESCRIPTION
A-SSC-H A-310 – Hydraulic Stage Cementing Collar
The SSC is used for carrying our stage cementing applications where the good design or pump capacities prevent cementing in a single stage.
It features two internal sleeves, that can be shifted Hydraulically, depending upon the plug configuration used, to open the cementing ports.
When the Flexible Indicating Plug lands on the landing/float collar, it pushes the 1st stage cement into the column, increasing the pressure causes the screws in the internal sleeve to shear and shifts the cementing ports open. Enabling the second-stage cement to pass through the ports into the annulus above the tool.
The closing plug when released wipes the casing ID clean of cement before bumping on a closing seat connected to the inner sleeve. Increased pressure shifts the closing seat downward, releasing locking lugs and closing the tool. A snap ring locks the sleeve in position, ensuring the stage tool remains locked.
FEATURES
- Field adjustable shear values
- Interchangeability between Hydraulic opening and Mechanical Opening.
- PDC Drillable
- Reduced drill out times.
- Robust Locking Mechanism
- The pressure-relief design prevents fluid trapping and compression between the opening device and the closing plug during the closing phase of the tool’s operation.
BENEFITS
- Adjustable shifting pressures.
- The system is PDC-drillable with anti-rotation features on the plugs, stage tool, and landing collar to prevent rotation during drill out, simplifying drill out and saving rig time and associated costs.
- Robust construction.
APPLICATIONS
- Stage Cementing operations.
