Subsea Isolation Valves for Oil Well Completions | Schlumberger

Isolation Valves

Isolate wellbore and reservoir fluids to manage risks

Contain fluids during completion and workover operations

Prevent formation damage and minimize workover costs with isolation valves that safeguard reservoirs by providing a reliable barrier within the completion string. Simultaneously minimize risks by isolating the formation and containing reservoir fluids, which increases efficiency by enabling batch drilling and completion operations.

Suit your application with a wide range of options

Choose the ideal isolation valves to suit your

  • environments, including deepwater and subsea
  • completion types, including single- or mutiple-zone completions and intelligent completions
  • applications, including fluid loss control, gravel and frac packing, well suspensions, ESP workovers, underbalanced perforating, and downhole lubricator valves.
Schlumberger Worker Inspection an Isolation Valve
1996
Industry's first barrier valve
>2,300
Isolation valves installed

Trigger Mechanisms
Trigger Mechanisms
Trigger Mechanisms
Trigger Mechanisms, Trigger Mechanisms, Trigger Mechanisms Interventionless Trigger Mechanisms
Trigger Mechanisms
Trigger Mechanisms Mechanical Trigger Mechanisms N2 Trigger Mechanisms S Trigger Mechanisms HP Trigger Mechanisms Control Line
Trigger Mechanisms FORTRESS
premium isolation valve 
Trigger Mechanisms Y Trigger Mechanisms Y Trigger Mechanisms Y Trigger Mechanisms Y Trigger Mechanisms  
Trigger Mechanisms FIV-II
formation isolation valve
Trigger Mechanisms Y Trigger Mechanisms Y Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms  
Trigger Mechanisms MFIV-II
mechanically controlled isolation valve
Trigger Mechanisms Y Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms  
Trigger Mechanisms AFIV
annulus-controlled shrouded isolation valve
Trigger Mechanisms Y Trigger Mechanisms  Y Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms  
Trigger Mechanisms SFIV-II
surface-controlled bidirectional isolation valve
Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms Y
Trigger Mechanisms TIVF
flapper-seal tubing isolation valve
Trigger Mechanisms Y Trigger Mechanisms Y Trigger Mechanisms   Trigger Mechanisms   Trigger Mechanisms  

Completion Types  FIV-II Valve
FORTRESS Valve
MFIV-II Valve
SFIV-II Valve
AFIV Valve
Completion Types  Intelligent completions  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II  • AFIV  •
Completion Types  Stand-alone screens  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II  • AFIV  
Completion Types  Gravel pack or frac pack  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II   AFIV  
Completion Types  Multizone gravel pack or frac pack  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II   AFIV  
Completion Types  Well suspension  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II  • AFIV  •
Completion Types  Lubrication  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II  • AFIV  
Completion Types  ESP workovers  FIV-II   FORTRESS  • MFIV-II  • SFIV-II  • AFIV  
Completion Types  Underbalanced perforating  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II  • AFIV  
Completion Types  Multilaterals  FIV-II  • FORTRESS  • MFIV-II  • SFIV-II   AFIV  
The TIVF flapper-seal tubing isolation valve is used for tubing autofill, tubing pressure tests, and packer setting.

ISO and API certifications

ISO 28781 and API Spec 19V are international standards that prescribe the requirements for subsurface barrier valves and related equipment for use in the petroleum and natural gas industries. Subsurface barrier valves provide a means of isolating the formation or creating a barrier in the tubular to facilitate the performance of well operations before production or injection starts. Barrier valves are also available for the postproduction or postinjection phase.

The standards define

  • functional characteristics
  • product material requirements
  • quality control, defined by quality grades Q1 and Q2
  • design criteria
  • design validation, defined by qualification levels V1, V2, and V3
  • design changes
  • documentation requirements—operations manuals and product identification.
Validation GradeTest MediumFlow Rate At
Validation Grade
Test Medium
Flow Rate At 200 psi Across Barrier Flow Rate At 50% Rating Flow Rate At 100% Rating
Validation Grade V1 Test Medium Liquid Flow Rate At 10 mL/min Flow Rate At 5 mL/min Flow Rate At 5 mL/min
Validation Grade V1 Test Medium Gas Flow Rate At 1 ft3/min Flow Rate At 0.5 ft3/min Flow Rate At 0.5 ft3/min
Validation Grade V2 Test Medium Liquid Flow Rate At 30 mL/min Flow Rate At 15 mL/min Flow Rate At 15 mL/min
Validation Grade V2 Test Medium Gas Flow Rate At, Flow Rate At, Flow Rate At No requirement
Validation Grade V3 Test Medium, Flow Rate At, Flow Rate At, Flow Rate At Supplier- or manufacturer-defined and successful field history of 20 similar valves

Barrier from AboveBarrier from BelowBarrier from Above and Below
Preproduction and preinjection barrier valves Barrier from Above Type A Barrier from Below Type B Barrier from Above and Below Type C
Postproduction and postinjection barrier valves Barrier from Above Type AA Barrier from Below Type BB Barrier from Above and Below Type CC

Isolation Valves Offerings

View All

Share This