When deployed as part of a downhole plug assembly, the Pump Open Sub is primarily designed to act as a single barrier against wellbore contents.
The Pump Open Sub Plunger is secured in place with a series of shear screws which are designed to shear out when a pre-determined pressure is applied from above the Pump Open Sub.
Once the Plunger is sheared out, there is a clear flow path through the Pump Open Sub. This allows for full equalization across the barrier device, circulation, communication to prevent recovery of “wet” tubing strings or production of wellbore contents.
When deployed as part of a downhole plug assembly, the Pump Open Sub can be:
Features & Benefits
Product Code: 300