Site Hydrostatic Fluid Control Valve

The Site Hydrostatic Fluid Control Valve is an upstream pressure regulator. It is balanced to downstream pressure and therefore is not affected by it. The opening pressure is adjusted by changing the spring force which acts on the piston area.

This valve is used to support hydrostatic tubing pressure in wells with low reservoir pressure. This gives surface control over fluid injection so that loss of expensive fluids to the formation can be minimized. This is especially important when there are several pumping and shut-in periods.

It is usually used with the SST or Straddle Packers to control fluid volumes injected at each setting.

1. Piston area - .248 in² (160 mm²)
2. Maximum total upstream pressure at the valve is 4500 psi (41 MPa)
3. Pressure downstream of tool has no effect on the opening or closing.
4. Housing strength allows 10,000 psi (69 MPa) hydrostatic.
5. Maximum flow rating is 7 BPM. (1 m³/min.)
6. Maximum Temperature is 4007 (200℃)
7. Minimum Temperature is -157 (-26℃)

The Site Hydrostatic Fluid Control Valve is designed to land and seat in the Site Seating Nipple, Product #10-038-2300-000 and Product #10-038-2700-000. With proper size seals and back up rings, the valve may be landed in a standard API Pump Seating Nipple.

This Valve may be run from the surface on wireline, in place in the tubing, or dropped from the surface. If the Valve is dropped from the surface, the fluid level should be as high as possible. The Valve must be allowed to fall free to the landing Nipple (do not pump valve down).