Product Sheet Dual-Action Valve
A full-opening downhole test valve.
The dual-action valve is a full-opening downhole test valve that is run in the closed position, opened by annulus overpressure (rupture disc), and then reclosed by a second annulus overpressure (rupture disc). The operator mandrels are balanced to ID pressure, and a two-way ratchet is used to prevent an operator mandrel from shifting, except in response to the annulus overpressure signal.
The ball valve is chosen for deploying the dual-action valve as closed-open-closed or open-closed-reopened.
Share This
To download this file you first sign in to your Schlumberger account.
Don't have an account? Click below to get started.
Sign In Sign Up for an accountPremium content requires special account permissions. We need a little more information from you before we can grant you access.
Complete account setup