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Typical Asset Integrity Cycle . Mitigation, Intervention and Repair
• Engineering support during anomaly remediation works (e.g. review and selection of most suitable inspection methods or remedial options)
• Maintenance of anomaly management systems e.g. ‘Coabis’ (component orientated anomaly based inspection system)
• Management of 3rd party contractors
Integrity Assessment Support
• Gathering and review of inspection, monitoring and testing data
• Identification and assessment of anomalies
• Corrosion assessment
• Annual integrity assessment
• Pipeline status information preparation for HSE
• Fitness for service assessment (DNV-RP-F101)
Plan
Do Check
Act
Risk Assessment and IM Planning Support
• Risk based assessment (RBA) • Risk based inspection planning (RBI) • Development and maintenance of a IM programme
(IMR - Inspection, Maintenance & Repair) • Development and implementation of planned
maintenance routines (PMR)
IM Implementation Support
• Preparation of inspection workpacks • Engineering support during inspection campaigns • Maintenance of work orders in computerised
maintenance management system
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Objective: General assessment of pipeline e.g. corrosion type flaw information
without removing concrete or interrupting production? Typical scenario: 20” pipeline coated with 105mm of concrete Field Joint section of the pipeline (unknown coating material) Pipeline submerged in sand
Requires logistical management of: Diver or ROV deployable solution (vessels, divers, ROVs dredgers etc.) Radioactive Source plus corresponding equipment
Subsea DRT: Digital Radiographic Testing
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Subsea DRT: Digital Radiographic Testing 2D flaw measurement (length x width), through 95mm equivalent steel Diver or ROV deployable solution
Test piece
Source (Ir192)
Digital detector plate
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Subsea DRT: Digital Radiographic Testing (Rigid & Flexible) Results: Corrosion free rigid
Corrosion evident
Flexible riser Side End
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Subsea UT: Ultrasonic Testing (Pulse Echo/Phased Array)
Prepare Subsea pipework Ultrasonic hi-res image De-burial
Automated UT scanner
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AUV ROV
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Flexible pipe integrity management Global & local compliance guidance Integrity assessment (API RP 17B, API RP
17L1/L2) Anomaly identification and assessment PA-11 ageing assessment (API 17TR2) Dissection and analysis support Lifetime extension assessment (Norsok Y-002)
Rilsan Polyamide
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Wind Turbine Monopile - Subsea Examination
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Wind Turbine Monopile – Subsea Examination
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Typical Asset Integrity Cycle . Mitigation, Intervention and Repair
• Engineering support during anomaly remediation works (e.g. review and selection of most suitable inspection methods or remedial options)
• Maintenance of anomaly management systems e.g. Coabis (component orientated anomaly based inspection system)
• Management of 3rd party contractors
Integrity Assessment Support
• Gathering and review of inspection, monitoring and testing data
• Identification and assessment of anomalies
• Corrosion assessment
• Annual integrity assessment
• Pipeline status information preparation for HSE
• Fitness for service assessment (DNV-RP-F101)
Plan
Do Check
Act
Risk Assessment and IM Planning Support
• Risk based assessment (RBA) • Risk based inspection planning (RBI) • Development and maintenance of IM programme
(IMR Inspection maintenance & repair) • Development and maintenance of planned
maintenance routines (PMR)
IM Implementation Support
• Preparation of inspection workpacks • Engineering support during inspection campaigns • Maintenance of work orders in computerised
maintenance management system
THANK YOU!
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