DACON INSPECTION SERVICES
PIPELINEINSPECTIONSERVICES
Who we are
Conventional and Advanced NDT and Inspection Services
Oil and Gas, Refinery, Petrochemical, Heavy Industry, Mining
Over 400 personnel including more than 300 inspectors
Thailand headquarters with International expertise since 1979
PIPELINEINSPECTIONTECHNOLOGY
DACON INSPECTION SERVICES
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Intelligent Pigging Systems
MFL (Magnetic Flux Leakage) UT (Ultrasonic Testing)
Measurement Uses magnetic flux leakage technique to magnetize line and measure flux leakage.
Uses ultrasonic testing technique to take measurements at 1,600 times per second.
Accuracy Results quoted as +/- 10% which means 20% margin of error.
Highest available accuracy with defects measured to within 0.1 mm.
Result Availability Can take 2 to 3 months with data analysis performed by expert.
Instantly available after inspection with simple and easy to understand analysis.
Size and Weight Large tools sometimes weighing hundreds of kilograms needing cranes to launch.
Small lightweight tools weighing around 20%of MFL tools of the same diameter.
Launching Lifting equipment required and due to large size needs significant clearing.
No lifting equipment required for tools up to 36" and can launch in restricted space.
Medium Can be used in most mediums including gas, liquid and multiphase.
Works only in liquid filled lines although batching can be used in gas lines.
Pipe Material Bare carbon steel only and to a maximum thickness of 25mm
Works on any material and on any thickness of pipe wall.
Speed Can travel at speeds of 1 to 5 meters per second making them ideal for long lines.
Needs travel speed of 1 to 5 meters per second to be effective.
Range Can travel many hundreds or thousands of kilometers.
Up to 100 kilometers is possible however up to 50 kilometers is ideal.
Cost Cheap in comparison to other techniques but expensive compared to Dacon UT.
Cost is 50% lower than other techniques and mobilization and launch is cheaper.
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Dacon Specialize in UT
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
How UT Pigging Works
• Horizontally placed ultrasonic transducer sends sound waves horizontally.
• 45° rotating mirror directs the sound waves perpendicular towards the pipe wall.
• Signal reflects back to the transducer the same way it came.
• Difference in time between sent and received signal measured and recorded.
• Measurements of up to 1,600 times per second depending on the pipe diameter.
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Ultrasonic Principle
Electrical > Mechanical Vibration > Very High Frequency Sound
Velocity = Distance Divided by Time
Reflected Wave
Object
Original Wave
Sender / Receiver
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Measuring Defects
Signal Analysis
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Why use UT
• Limited access work areas are fine
• Metallic and non-metallic pipeline
• Most accurate / detailed inspection method
• Simple data analysis
• No wall thickness limitation
• Immediate onsite results
• Final report within 2 weeks
• Saves time and money for all the above reasons
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Cost Benefit
Inspection Cost Comparison
70,000 $
60,000 $
50,000 $
40,000 $
30,000 $
20,000 $
10,000 S
0 $
Dacon CuS Lift Pipeline
InspectionLogistics
Inspection
+200%
ShutdownShutdown
Logistics
Inspection
Shutdown
Logistics
DACON INSPECTION SERVICES DATAANALYSIS
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Data Interpretation System
Step Wedge
2 mm.
4 mm.
6 mm.
8 mm.
10 mm. GOOD
BAD
MEDUIM
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Data Analysis
Shows Longitudinal Location Of Defect
Internal Wall
Exact RemainingWall Thickness
At Crosshair Location
Side ViewOf Defect
External Wall
C Scan Shows Defect Location in Pipeline Circumference
B Scan Shows Wall Thickness
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Data Analysis
Software “opens up” the pipeline to display the data in an easy
to understand format.
B Scan Shows Wall Thickness
C Scan Shows Defect Location
In Pipeline Circumference
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Actual Case
Weld 1
Weld 3
HeavyCorrosion
Weld 2
DACON INSPECTION SERVICESPIPELINE INSPECTION PROCESS
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Progressive Pigging
• Soft foam pig is launched to ensure there are no obstructionsin the pipeline.
• Medium or hard density foam cleaning pigs are launchedto clean the line and further detect for obstructions.
• Gauging pig is launched into the pipeline as a final check forobstructions, dents and ovalities that may cause problems.
• If gauging plate comes back in a satisfactory condition thenthe Intelligent Pig is launched and the pipeline data acquired.
• Data is downloaded directly from the pig to the Dacon dataanalysis system and an immediate initial assessment can be given.
DACON INSPECTION SERVICES
CONFIDENCE
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Simulation Tests
• Mock up your pipeline in our test yard
• Perform pull through test to ensure tool compatibility and effectiveness
• Witnessed by client
• Gives confidence that your pipeline will be inspected without any problems
• Test yard with full facilities is located in Thailand.
DACON INSPECTION SERVICES
CASE STUDIES
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Refinery
• Refinery
• 12” x 4km Kerosene Line
• 16” x 4kms Napta Line
• Online Inspection
• 12” Pigging Tool
• 6” Pigging Tool
• 3 Man Team
• Mobilize from Thailand
Description Solution
• Successful Inspections
• 7 Day Duration
• Full Data Capture
• Lines Fit For Service
• No Lifting Equipment
Needed
• Saved $40K Mobilization
Costs
• Small Team With Small
Footprint
• No Shutdown Needed
Result Benefit
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Offshore Oil and Gas
• Offshore Platform
to FPSO
• Pass Through Plem
and Riser
• 6” x 5km Condensate Line
• Online Inspection
• Successful Inspection
• Successful Pass Through
Plem
• Successful Pass Through
Riser
• Line Fit For Service
Description Solution
• 6” UT Pigging Tool
• Specially Developed 2
Body Tool
• Tool Built & Tested By
R&D Team
• Tool Developed & Built
in Thailand
• Small Team On Platform
• Saved USD$30K
Mobilization Cost
• Cheaper Tool
Development Costs
• Easy Client/Contractor
Interaction
Result Benefit
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Riser Inspection
• Riser - Offshore Platform
• 6” x 20 Meters
• Urgent Due To Heavy
Corrosion
• Line Shutdown For
Inspection
• Instant Report
• 79.5% Wall Loss
• Recommend To
Shutdown Line
• Line Repaired
Description Solution
• 6” Tethered UT Tool
• 2 Man Team
• Instant Reporting System
• Rapid Mobilization from
Thailand
• Critical Situation Quickly
Identified
• Fast Mobilization Within
Asia
• API Qualified Inspectors
• Immediate Action Made
Possible
Result Benefit
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Mining
• Gold and copper mine
• 36” x 6km Tailings Line
• High Density
Polyurethane Lines
• Mission Critical Results
• Numerous Successful
Inspections
• Meets Government
Compliance
• Continued Safe Mine
Operation
• Tools and System Stored
On Site
Description Solution
• Specially Developed
And Built Tool
• Global First
• Measures Wall Thickness
in HDPE
• Floatation For Subsea
Recovery
• Unique Solution
• Close Cooperation
• Minimized Costs
• Team Based Joint
Solution
Result Benefit
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
Summary
• Asia Based With International Expertise
• Excellent Track Record
• Small, Lightweight Tools
• Easy Mobilization and Launch
• Extremely Accurate
• Simple Data Analysis
• Immediate Results
• Saves Time and Money
DACON INSPECTION SERVICES P E R F O R M A N C E Y O U C A N T R U S T
How We Help?
Contact
Tim ShawChief Marketing OfficerEmail : [email protected] Mobile Phone : +66 (0) 89 245 9966 www.dacon-inspection.com