Schlumberger

Isolation Valves

The table below shows common applications for several of our isolation valves.

FIV-II FORTRESS MFIV-II SFIV-II AFIV
Completion Types
Intelligent well


Stand-alone screens


Gravel pack/Frac pack


Multizone gravel pack/frac pack


Well suspension




Lubrication



ESP workovers


Underbalanced perforation



Multilaterals


The TIVF flapper-seal tubing isolation valve is used for tubing autofill, tubing pressure tests, and packer setting.

Manage Debris Accumulation in Harsh Environments

FORTRESS isolation valve
The FORTRESS isolation valve withstands severe debris environments and optimizes the available actuation energy—predictably, consistently, and reliably. Visit FORTRESS valve page

More than 2,300 Isolation Valves Installed Worldwide

 Formation Isolation Valves
Formation isolation valves provide a reliable barrier and contain fluids during completions and workover operations.
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