Automated and cost effective riser annulus testing. The Portable Annulus Tester PAT™ is the latest development in 4Subsea’s strategy to digitise integrity management of flexible risers. The hand-carried unit allows for simple and cost effective annulus testing of risers using your own personnel.
Typical Challenges for Operators
Do any of these apply to your subsea operations?
- You don’t do annulus testing in a consistent and quality assured way across all your assets
- You lack a consistent testing method independent of who performs the test
- You want to reduce POB and utilise personnel familiar with your facilities
- You need to get the test report immediately after the test
- You need to decrease your costs of periodic annulus testing
- You need 24/7 support during your testing
The fully automated and patent pending PAT™ unit has been developed based on 4Subsea’s worldwide experience with offshore inspection and testing of flexible risers. The objectives of such tests are to verify the flexible riser outer sheath integrity and the functionality of the ventilation system. The hand carried test unit performs complete annulus tests, and algorithms are enabling the operator to take immediate action if anomalies are detected. 4Subsea performs certification programs for operators, training their personnel in using the Portable Annulus Tester.
PAT™ is an «Engineer-in-a-box» solution that removes the requirement for mobilising dedicated third-party personnel offshore. The system is the first in the world to completely automate riser annulus testing.