Hydril Pressure Control Checkguard* Drop-in Check Valves
The Hydril Pressure Control Checkguard Drop-in Check Valves are an essential drilling tool from GE Oil & Gas that prevents return flow during a kick. It can be used in most drilling situations where return flow through the drill string is a risk and the benefits of a full-bore sub are needed during normal operation. It also can be installed only as needed: it does not affect measurement-while-drilling tools and permits retrieval of other through-string tools.
Features & Benefits
Checkguard valve installation significantly improves and simplifies well control because of its innovative design, which includes:
- Hardened flow passages for resistance to erosion.
- Wireline retrievability, which eliminates the need to trip the drill string.
- Positive closure. After traveling down the drill string, the check valve lands on the landing sub sleeve and latches positively into place.
- Working pressure of 15,000 psi to match the highest pressure BOP equipment.
