Hydrostatic Valve
A metal body with two diaphragms fixed by a nut.
Advantages
- high resistance to mechanical loads;
- operable at extreme temperatures;
- reliable sealing;
- reliable burst-port activation mechanism.
Specifications
- activation pressure: 48 to 93 MPa
- number of ports: 20
- port diameter: 12 mm
- total circulation-port area: 2260 mm²
- size range: 102/146; 114/168(178); 140(146)/219(245)
Application area and experience
The hydrostatic valve is used in continuous cementing of wells and is designed for multi-interval staged fracturing, with the option of using a selective packer. When the internal absolute pressure rises to the burst-port activation pressure, the burst ports open.
