Schlumberger

FIV-II Formation Isolation Valve

Overview Library

Protection for your reservoir

The FIV-II formation isolation valve serves as a bidirectional barrier to isolate reservoir fluids within the lower completion, enabling operators to transition seamlessly—without intervention—from the lower to the upper completion. It

  • enhances well productivity by preventing formation damage and minimizing fluid loss
  • saves rig time and costs by reducing interventions
  • increases safety by providing a downhole barrier against pressure reversals.

Interventionless opening

The valve features the Trip Saver one-time remote-opening mechanism, which eliminates the need for an intervention to open the valve one time. Instead, cycles of tubing pressure are applied against the closed valve in a number predetermined by an integral indexing mechanism.

Wide range of applications

The valve has a wide range of applications, including fluid loss control, underbalanced perforating, well control barrier operations, and multizone isolation. Because of the rotating ball and floating seal design, the valve is more debris tolerant compared with previous designs, making it especially useful in sandface completions.

Rigorous qualification and testing

The FIV-II valve is qualified and tested with gas to a zero-bubble leak rate across the ball sealing mechanism from below under specified conditions. This stringent acceptance criterion enables the valve to be used as a barrier for well intervention operations and for well suspension before the Trip Saver mechanism is activated.

Related services and products

 
 
Request More Information

FIV Formation Isolation Valves Protect North Sea Reservoirs

FIV valves protected the reservoir and screens from damage by the weighted completion fluid and prevented inadvertent fluid production, eliminating multiple interventions for setting and pulling plugs.
Read case study

Bidirectional Pressure-Sealing Ball

FIV-II formation isolation valve
PrevNextZoom1 of 1