
Annulus pressure operated test tools, catalog page 13
SIERRA Multi Circulating Valve
Annulus pressure-operated circulating valve that opens and closes repeatedly
Description
The SIERRA multi circulating valve is an annulus pressure-operated circulating valve that can open and close its circulating port repeatedly. It is suitable for cased-hole perforating + acid fracturing + testing combined operations.
Features
- At a set position, annulus pressure can operate other tools many times without affecting this valve
- Because the circulating port can be opened and closed repeatedly, perforating + acid fracturing + testing can be completed in a single operation
- Simplifies the test program and reduces exploration cost





