Vent gas monitoring covers measurement of gas flow, annulus pressure and vent rate to assess the condition of the outer sheath and end fittings. The scope includes identification of gas ingress, water ingress and vent line blockage. Changes in pressure or gas composition are used as indicators of developing integrity issues over time. Monitoring can be applied periodically or continuously, depending on installation and risk profile.
Asset integrity and asset lifecycle management
Flexible riser monitoring
Detect early integrity changes in offshore flexible risers through continuous and periodic monitoring to prevent failures and extend service life.
Flexible riser monitoring supports offshore operators and integrity managers responsible for maintaining the safe operation of ageing flexible risers. When changes in riser condition are not identified in time, degradation mechanisms such as sheath failure, gas ingress or fatigue damage can progress unnoticed, delaying decisions and increasing the risk of unplanned shutdowns or safety incidents.
Monitor riser condition over time
By providing integrity teams with structured insight into riser condition over time, monitoring enables informed assessments, clear documentation, and well-founded maintenance decisions. This supports prioritised interventions, proactive service life management and continued reliable offshore production. The service is part of our expertise area Asset integrity and asset lifecycle management.
Challenges
When flexible riser integrity is unclear, risk escalates fast.
Unclear annulus condition delays integrity decisions
Sheath damage, gas ingress or water intrusion in the annulus cannot be confirmed or ruled out, leaving integrity teams without a clear basis for assessing riser status or deciding on timely interventions.
Insufficient fatigue insight undermines service life assessment
Without reliable visibility of fatigue accumulation and structural stress in dynamic riser sections, remaining life and failure risk cannot be assessed with sufficient confidence.
Unverified polymer ageing weakens long-term planning
Lack of validated information on polymer integrity and ageing creates uncertainty around long-term riser performance and limits confidence in service life and life-extension assumptions.
Late identification of integrity issues drives reactive interventions
When degradation is identified late, maintenance and repair activities become reactive, increasing the likelihood of unplanned shutdowns, offshore interventions and production disruption.
Benefits
Get documented integrity insight that supports maintenance decisions, planning and operational assurance.
Support integrity decisions with clear condition insight
Condition information on riser status gives integrity teams a solid basis for assessing integrity, prioritising actions and justifying operational decisions.
Manage service life with validated fatigue and ageing insight
Insight into fatigue behaviour and material ageing supports service life assessments and informed decisions on continued operation or life extension.
