
Annulus pressure operated test tools, catalog page 14
MAIN Test Valve
Annulus pressure-operated downhole test valve for repeated open/close
Description
The MAIN test valve is an annulus pressure-operated downhole test valve used in cased-hole DST operations. It can open and close the well repeatedly downhole.
Features
- Consists of a ball valve mechanism, operating mechanism, nitrogen power mechanism and oil chamber metering mechanism
- Special metering cartridge ensures that the ball valve opens and closes reliably
- Acidizing and fracturing pressure does not affect the position of the ball valve
- Shear pin fixes the ball valve position while running in
- Circulation and acidizing can be performed while the packer is unset
- High operating pressure provides maximum shut-in force




