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® Registered trademarks of T.D. Williamson, Inc. in the United States and in foreign countries. © Copyright 2014, T.D. Williamson, Inc. All rights reserved. The distribution of this document beyond the intended recipients in whole or in parts is strictly prohibited.
Inline Inspection Technology Overview
Jason M Matocha
Technical Representative
11/12/2015
References
• API 1160
• NACE SP0102-2010
• API 1163
API 1160
ILI Technology Overview
• Caliper
• High Resolution Geometry
• Axial MFL
• Circumferential MFL
• Helical MFL
• Residual Field or Low Field MFL
• Inertial Mapping/XYZ
• Combination Technology
• UT Wall Thickness
• UT Crack Detection
• EMAT
Caliper
• Low Resolution geometry and bore
measurement technology.
• Optimal tool speed 3-5mph.
Caliper
Integrity Assessment
• Dents and bends (detect and size)
• Low resolution geometry technology primarily
used for New Construction inspections.
• Optimal tool speed 3-5mph.
• Gas or Liquid pipelines.
• 6”-48”.
High Resolution Geometry
High Resolution Geometry
• Dents, bends, wrinkles, buckles, expanded
pipe, and evidence of strain. (Detect and Size)
• Tool Speed 3-5 mph
• Gas or Liquid pipelines.
• 3” to 56”.
High Resolution Geometry
0.375” (9.53mm) 0.250” (6.35mm)0.312” (7.93mm)
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High Resolution Geometry
Axial MFL
***Magnetic field orientation plays a key role
in detection, identification and sizing.**
Axial FieldAxial Field
Axial MFL
Integrity Assessment
• Metal Loss internal or external. (Detect and
Size)
• Dents, Wrinkles, Laminations and Bends.
(Detect)
• Gas and Liquid pipelines.
• 3”-56”.
Axial MFL
Circumferential MFL (Transverse Field)
Circumferential Field
Circumferential MFL (Transverse Field)
Integrity Assessment
• Metal Loss internal or external. (Detect and Size)
• Selective Seam corrosion external and/or
internal. (Detect)
• Axially oriented crack like manufacturing defects.
i.e. hook cracks, etc. (Detect)
• Dents, wrinkles, laminations and bends. (Detect)
• Gas and Liquid pipelines.
• 6”-36”.
Helical MFL (Spiral Field)
Helical MFL (Spiral Field)
Integrity Assessment
• Metal Loss internal or external. (Detect and
Size)
• Selective Seam corrosion external and/or
internal. (Detect)
• Axially oriented crack like manufacturing
defects. i.e. hook cracks, etc. (Detect)
• Dents, wrinkles, and laminations. (Detect)
• Gas and Liquid pipelines.
• 6”-30”
Residual or Low Field MFL
Integrity Assessment
• Hard Spots (Detect).
• Strain (Detect).
• Gas and Liquid pipelines.
• 8”-30”.
Combination Technologies
• Combine different technologies to allow for a
standalone tool run (4”-56”).
• Tool Speed 3-5 mph.
• Gas or Liquid pipelines.
Combination Technology (GEO+Axial MFL)
Inertial Mapping/ XYZ
• Evidence of strain, bends and curvatures.
(Detect and Size)
• Tool Speed 3-5 mph.
• Sub meter coordinates of pipeline features
(valves, etc.) and anomalies (corrosion, dents,
etc.).
• Gas or Liquid pipelines.
Inertial Mapping/ XYZ
Ultrasonic Wall Thickness
• Induces normal beam UT into pipe wall.
• Liquids only or needs to be run in a batch of
diesel or water.
• Pipeline needs to be very clean and tool speed
needs to be 1-3mph.
• 6”-56”.
Ultrasonic Wall Thickness
Integrity Assessment
• Metal loss internal and external. (Detect and
Size)
• Narrow axial external corrosion. (Detect and
Size)
• Laminations. (Detect and Size)
• Dents, wrinkles and bends. (Detect).
Ultrasonic Crack Detection
• Induces signal into the pipe at a variety of angles.
• Pipeline needs to be very clean and tool speed needs
to be 1-3mph.
• Liquids pipelines only or needs to be run in a batch of
diesel or water.
• 6”-56”.
Ultrasonic Crack Detection
Integrity Assessment
• Metal loss internal and external. (Detect)
• Selective seam weld corrosion. (Detect and Size)
• Axially oriented SCC, stress fatigue cracks, cracks
and crack like manufacturing defects .(Detect and
Size).
• Narrow axial external corrosion. (Detect and Size)
• Laminations. (Detect and Size)
• Dents, wrinkles and bends .(Detect)
EMAT
• Electro Magnetic Acoustic Transducer
• Pipeline needs to be very clean and a optimal tool speed around 1-3mph.
• External and internal corrosion, selective seam weld corrosion, axially oriented crack like defects, dents, etc. (Detect)
• Axially oriented SCC, cracks and hard spots. (Detect and Size)
• Gas and Liquids Pipelines.
• 10”-36”.
® Registered trademarks of T.D. Williamson, Inc. in the United States and in foreign countries.© Copyright 2014, T.D. Williamson, Inc. All rights reserved. The distribution of this document beyond the intended recipients in whole or in parts is strictly prohibited.® Registered trademarks of T.D. Williamson, Inc. in the United States and in foreign countries.© Copyright 2014, T.D. Williamson, Inc. All rights reserved. The distribution of this document beyond the intended recipients in whole or in parts is strictly prohibited.
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