The subsea landing string systems are versatile performers for exploration and appraisal well testing, development, and intervention operations performed from a floating vessel. A large range of sizes, pressure and temperature ratings, and operating system configurations enables design for a variety of water depths, well conditions, and vessel types.
From a dynamically positioned or anchored vessel, Schlumberger operating systems can close the SenTREE valves and disconnect from the landing string quickly, in as little as 15 s.
The SenTREE family includes the SenTREE 3, SenTREE 7, and SenTREE HP subsea test trees (SSTT). Their flexibility makes these systems ideal for integration with any subsea configuration.
SenTREE applications
- Well testing and cleanup
- Completion installation
- Intervention projects
- Well operations management
- Well control
SenTREE benefits
- Flexibility to meet specific job requirements with minimal customization
- Simple integration with any subsea BOP stack
- Reliable operations in deep water and ultradeep water
- Proven technology based on extensive subsea experience
- Early reservoir information available upon completion installation
- Less rig time needed for completion, Christmas tree installation, and flowback operations
- Monitoring and feedback capabilities to reduce operator risk and provide data and communication for operations management
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