Completion Tools
COMPLETION TOOLS
Cementing Valve
Pressure-activated stage cementing
The pressure-activated stage cementing valve functions by applied pressure to permit upper-stage cementing. Opening is controlled by a piston at the end of first-stage cementing — opening pressure moves an inner sleeve upward, aligning the cementing ports.
The valve is closed by the wiper plug following second-stage cement. The inner sleeve is held in position by a ratchet-type lock ring, maintaining pressure integrity.
Key Specifications
- Operation
- two-stage pressure-activated cementing