Internationally recognised QMS certification awarded in recognition of Astrimar's commitment
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Risk-based well decommissioning
Systematically and comparatively evaluating risks for innovative well barrier design
Page last modified
September 10 2024
Astrimar has established track record supporting operator well decommissioning design decisions and ALARP (as low as reasonably practicable) risk demonstration. Many wells to be decommissioned will have challenges requiring innovative designs that deviate from those specified in industry (e.g. OGUK or NORSOK) guidelines or require application of new plugging technologies. For these wells, a quantified or semi-quantified risk assessment is fundamental to demonstrating acceptable risk management and ALARP. Astrimar’s STEM-flow software supports prediction of barrier system failure over time.
Pros & Limitations
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Enables alternate well decommissioning designs and solutions
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Optimises use of data to predict barrier performance
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Helps understand impact of uncertainty over time
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Supports identification of cost effective solutions while maintaining acceptable risk
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Enables risk assessment process suited to demonstrating ALARP
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Supports assessment of impact of non-ideal and novel conditions through analysis of barrier system failure mechanisms
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The simplified failure mechanism models assume homogeneity of barriers and interfaces (however, simulations estimate expected performance over a range of possible input criteria)
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Models require initial identification of barrier failure modes and mechanisms (Typically supported by a FMECA analysis)
Specification
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Optimisation
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Assessment of multiple designs, optimising for cost, safety, compliance and risk
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Material
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Assessment of alternative well barrier materials, including novel plugging technologies, and impact of technology uncertainty
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Cost
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Assesses cost-benefit from a risk-managed perspective to support cost reduction through comparative assessment
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Flexibility
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Ability to assess multiple abandonment designs and associated risk, to enable non-standard innovative P&A solutions
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Compliance
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Supports operators in demonstrating compliance in adopting risk-based well P&A
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Deployment
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Supports risk-based qualification of novel P&A technologies and their acceptance for deployment
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Reviews
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Technology Readiness Level
The Technology Readiness Level (TRL) indicates the maturity level of novel technologies. Learn more about the TRL scale used by us.
[8/9]
Development
Technology demonstration
Mature / Proven
Relative Business Impact
Solution Deployed By
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