gis-enabled ili repair prioritization and follow-up · api 1160 . inspection history, threat...
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GIS-enabled ILI Repair Prioritization and Follow-Up An integrated workflow from the submission of the Final Report to the Validation of Dig Results.
ROSEN Integrity Solutions GmbH Markus Brors 24-October-2011
• The ROSEN Group
• Pipeline Anomalies & Inline Inspection Technologies
• Prioritization Approaches
• Involvement of the «Linear and Spatial Component»
• Automated Workflow as part of ILI Reporting
• Deliverables
• Conclusion
Content
The ROSEN Group ROSEN delivers the industry’s most advanced sensor technologies, integrity management software and inspection solutions.
• Privately-held company for over 30 years • Continued reinvestment ensures stability and long-term growth
opportunities • Regional focus ensures commitment to needs of local
customers and markets • Our culture is built on family values - we conduct our business
accordingly
The ROSEN Group
Dubai
Kuala Lumpur
Oldenzaal
Houston
Calgary
Veracruz
Bogota
Moscow
Kiev
Newcastle
Dammam
SLO Lingen
Stans
Worldwide Coverage in more than 100 countries with 14 major operating companies and branch offices (> 2000 employees)
Buenos Aires
Rio de Janeiro
Perth
Research Center Lingen, Germany
Research Center Bogota, Columbia
Research Center Stans, Switzerland
4 research facilities house > 25% of ROSEN’s employees
Research Center San Luis Obispo, California
In-Line Inspection Technologies
UT – ultrasonic wallthickness MFL – magnetic flux leakage
Complementary technologies for corrosion assessment, high resolution geometry survey and inertial measurement brought together in single inspection tools ...
Geo – extended geometry service XYZ – IMU mapping of pipe route
42” RoCorr.Geo
... addressed in One Run • Corrosion / Metal Loss • Mill Related Anomalies • Mechanical Damage • Dents and Stress Riser • Ovality / ID Reduction • Strain Mapping • Pipeline Route
42” RoCorr·UT/Geo
How to evaluate which Anomaly is a Safety Concern…
Pipeline Anomaly Evaluation
“Straightforward Rules“
“Decision Tree“
e.g. B31G; RStreng calculation of safe maximum pressure based on dimensions of corrosion
e.g. cfr 49 – 192 or 195 complex decision tree with different consequences (remediation schedule) understanding of multiple threads and environmental factors (HCA)
Isolated ILI considerations
• ILI Defect parameters • Operating Conditions • No influence of environmental factors or inspection history
Basic screening identifying immediate repairs utilizing ILI Vendors Reporting Software.
Practical Prioritization Methods
Immediate Concerns are usually reported in a Preliminary Report and require actions “ASAP” (max. 5 days). • Metal Loss > 80% • Top side Dent + Metal Loss • … Those defects usually don’t require further pre-assessment, but immediate action…so no spatial interaction required. This process goes further and utilizes advanced Data Management to optimally tackle scheduled and monitored conditions.
Practical Prioritization Methods
API 1160
Inspection History, Threat Interaction & Environmental Factors
• ILI Defect parameters • Inspection History • External Events / Threats • Influencing Geographical Factors
Accurate and focused process requiring stringent data collection and integration processes and sophisticated integrity assessment / query tools.
Practical Prioritization Methods
To interact ILI defects with external features, the accuracy of the alignment to known installations is usually sufficient.
Linear and Spatial Alignment
Just getting rid of the «Slippage Factor»
To interact ILI defects from consecutive runs, a weld-to-weld and considerations of the o’clock position is mandatory.
Linear and Spatial Alignment
Weld-to-Weld as basis for «Corrosion Growth»
• ILI vendors often implement specific export queries/lists as requested by the operator
• Such queries usually do not include features “around” the pipeline, as “Data Evaluation” doesn’t know about those (unless provided by the operator in an aligned manner)
The Spatial Component
“High Consequence Areas“
“Foreign Line Crossings“
Which Parameters matter in the Decision Tree?
Advanced process following ILI evaluation: • GIS Processing: All non-ILI features have to be processed along
the pipeline route to allow for interpretation and intersection • PIMS Processing: ILI data is intersected with each other AND with
linear features to calculate critical defect parameters and to apply queries
Automated Workflow as Part of ILI Reporting
GIS Processing
PIMS Processing
Parameter depend on Prioritization Rules
Sample Prioritization Query Implementation:
Automated Workflow as Part of ILI Reporting
HighRes XYZ GEO
corrosion – pitting – axial anomalies – ID/OD – deformation – IMU
HighRes MFL
HighRes CMFL
16” RoCorr·CMFL/SIC
• Reported “at once”
• No misalignment
• Single repair campaign
Priority
Target Anomaly
Type Query Definition Query Details Repair Condition
HCA
Cond
ition
1 Metal Loss Metal Loss > 70 % Depth >70% and HCA = YES Immediate Repair
2 Dent Top Side Dent within 5ft of any metal loss, cracking or a stress
riser
o'clock ≥08:00 and ≥04:00 and event DENT-DWML, DENT-DWGC, IDAN-DWML, IDAN-DWGC and HCA=YES and STR=YES
Immediate Repair
3 Dent Top Side Dent with a Depth > 6 %
o'clock ≥08:00 and ≥04:00 and event IDAN-DENT and ID-Reduction >6% and HCA=YES
Immediate Repair
Oth
er
14 Gouge/ Groove Gouge or Groove > 12.5% NWT
Depth >12.5 % and event MELO-MEDA or MELO-GOUG
Scheduled
16 Crack Potential crack event like *CRACK* Scheduled
20 Metal Loss Metal Loss within 100 ft from a
CP reading that is ≥ -850 mV
event like '*MELO*' and CP_UP=YES Scheduled
Automated Workflow as Part of ILI Reporting
Assessment results are interactively presented and can directly be related to any external feature for optimal judgement on rehabilitation activities ...
Joint decision Reporting Platform: • ALL environmental input parameters • ALL types of defects • External Inspections • Far beyond ILI standard software
Record Keeping and Demonstrating Compliance
Field activities should be tracked in their entirety...
• What was the input information?
• What was the decision tree?
• Who decided for the action?
• Which task was assigned?
• Who executed it? • What was the
outcome?
Record Keeping and Demonstrating Compliance
Thinking about Accuracy for Immediate and Future Decisions...
• Utilization of Field Verifications for immediate run accuracy / acceptance checks
• Application of accuracy buffers for future Corrosion Growth Studies
Depending on what the operator’s IT/GIS environment looks like, there are various delivery options: 1) Enterprise GIS available: Spatial format
delivery (Geodatabases, Shape Files, PODS ILI Exchange)
2) Pipeline Integrity Management Software required: Implementation of ROAIMS environment
3) No supporting Hardware available: Hosted solution directly fed by ROSEN alongside an ILI campaign
Deliverables
Client Name Pipeline Name
Deliverables
Cloud Services available for Advanced Reporting...
• No need to install «Thick ILI Reporting Software»
• Centralized and enterprise availablability of ILI data
• Immediate analysis capabilities following submission of Final Report
Workflow Reflection
Definition of Decision Tree
Integrity Team GIS Team ROSEN
Enterprise GIS Hosted ROAIMS Installed ROAIMS
ILI Reporting ROSEN
ILI Reporting Vendor A
Data Processing
Boxed ILI Data
Pipeline Centerline + ext.
Features
Prelim / Final Report
Field Capture
5-10 days following Final Report
results are available in any format. Decision Tree
Results
Conclusion
Inline Inspection Data provides the Operator with a massive amount of highly accurate data along the pipeline. Immediate decisions can be taken based on Vendors Reporting
Software, if all concerned Parameters are accurately handed over to Data Evaluation Team.
Advanced software tools are made available (installed or hosted) to support decision making process and lifecycle data integration.
Further analysis can be quickly taken over by ROSEN in case accurate route and spatial surroundings are provided.
Service is provided compatible to Enterprise Pipeline GIS as all results can be directly imported and/or further be processed inside ROAIMS.