Integrity Management of Static Subsea Equipment-Methods ...
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Transcript of Integrity Management of Static Subsea Equipment-Methods ...
Norway • Hvalstad • Sarpsborg • Kristiansand • Stavanger • Bergen
• Trondheim • Harstad • Tromsø • Hammerfest
Company information
Business areas, FORCE Techn Norway
• Inspection services
• Structural design/verification
• Instrumentation and monitoring services (subsea/topside)
• Integrity management/Inspection planning/RBI
• Training/certification
FORCE Technology and subsea inspection
References since 1990
• Wall thickness and lamination- Pipes and bends
• Welds- tethers, structural parts, pad eyes
• Fatigue surface breaking cracks -structures
• Ovality -pipes
• Material hardness -bolts & stress relief holes
• Standard tools
• Custom built tools
• Modular systems- easy to modify/customise
• External and internal tools
Some of our Subsea NDT inspections tools
• Using ROV or divers for accessing the
inspections points.
• Mounts directly to the structure, either by
magnets or vacuum, to get the best result of our
inspection.
• Controlled remotely by trained and certified
NDT experts.
• Inspection data are stored digitally for eventual
later re-evaluation or comparison
Water level
measurement
scanner:
Pipe Scanner
F-GRIM tool
F-EIM tool
P-scan / AUS-4
GRIM – crack detection and crack removal
From the attic:
GRIM: Grind Repair Inspection Machine
• Automated
surface mapping
• ET scanning
mode
• Grinding mode
Challenges
• No test records
• No known operation records
• Unknown accuracy
• Unknown repeatability
• Unknown system stability
• Unknown mechanical stability
• Unknown hardware compatibility
• Outdated programming language
• Outdated user interface software
6 months to FAT
Planning based on SAR and FMECA 8
FORCE Technology Norway A/S
F-GRIM Main features
• Surface mapping of topography in 3D
F-GRIM Main features
• Surface mapping of topography in 3D • Eddy current inspection
F-GRIM Main features
• Surface mapping of topography in 3D • Eddy current inspection • Grinding of surface cracks
F-GRIM Main features
• Surface mapping of topography in 3D • Eddy current inspection • Grinding of surface cracks • Verification of crack removal
F-GRIM Setup
F-GRIM Setup
F-GRIM Setup
F-GRIM Setup
F-GRIM Setup
F-GRIM Setup
F-GRIM Qualification Program
• Test of accuracy/precision of geometry mapping
F-GRIM Qualification Program
• Test of accuracy/precision of geometry mapping • Test of adequate detection and sizing capability
F-GRIM Qualification Program
• Test of accuracy/precision of geometry mapping • Test of adequate detection and sizing capability • Test of adequate grinding capabilities
F-GRIM Setup
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F-GRIM Setup
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• Proximity Sensor • Eddy Current Probe
F-GRIM sensor precision
• Topography Mapping • Crack length and depth
F-GRIM Proximity Mode
• Topography Mapping
F-GRIM Proximity Mode
• Topography Mapping Precision
F-GRIM sensor precision
• Topography Mapping
F-GRIM Geometry precision
Accuracy: 0.30 mm Repetability: 0.20 mm
Sensor Accuracy
F-GRIM Eddy Current precision
• Crack length and depth
F-GRIM Eddy Current precision
• Crack length and depth
F-GRIM Eddy Current precision
1mm
2mm 3mm
Calibration Signals 0.5, 1.0 and 2 mm
• Crack depth
• Video
F-GRIM
Verifying crack removal
F-GRIM
FAT Results
Offshore prosessanlegg og rørledninger 38
FAT Success
Offshore prosessanlegg og rørledninger 39
In house development
Software
Mechanical and electronics design
Experience
