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21 August 2019

Astrimar present at Decom North Sea Networking Breakfast

Astrimar joined other Decom North Sea members to deliver an elevator pitch on our STEM-flow software for prediction of well P&A integrity risk.

Astrimar’s Brian Willis was delighted to present about our STEM-flow® modelling approach at Decom North Sea’s event at Aberdeen’s Chester Hotel on 21st August 2019.

STEM-flow®, which incorporates a probabilistic modelling approach, is used to evaluate long term well plug integrity to support P&A design and application of new technologies.

The drive to reduce the huge projected costs for North Sea decommissioning is leading many operators to look to new technologies, including new barrier materials (such as bismuth alloys, resins, and thermite) as alternatives to cement. To effectively displace the use of cement, these materials need to demonstrate that they offer at least the same performance as cement plugs, while costing less to deploy. Alignment to industry requirements to achieve a 3000-year plug life is a significant technical challenge.

Astrimar developed the STEM-flow® risk-based plug integrity assessment model, to support this challenge, by evaluating the performance of cement and new barrier materials over time, based on well data and materials test data.  The insight provided by the analysis enables effective P&A design decisions for both current and new barrier materials. 

More information about the event and a copy of Brian’s presentation can be obtained from the Decom North Sea website: