Pipeline Wall Loss In-Line Inspection Services

High-Resolution Metal Loss Inspection for Critical Pipeline Threats

Metal loss is the most common integrity threat facing pipeline operators. Corrosion, pitting, pinhole leaks, erosion, and localized wall loss can develop over years before becoming critical integrity concerns.

For over 45 years, Dexon Technology has helped operators obtain high-quality integrity data from assets with complex threat profiles and operational constraints, giving them the confidence to make informed integrity decisions.

Combining award-winning UT technologies with bespoke engineering solutions, Dexon delivers the data operators need to act decisively.

Pipeline Wall Loss In-Line Inspection Services

Industry-leading resolution

≥ 4 × 4 mm sampling resolution

Fully customized inspection tools

Design, fabricate, assemble, and test—all under one roof

Rapid turnaround for complex projects

Integrated engineering & manufacturing eliminates outsource

First-run success

92% first-run success rate

On-time reporting

98% on-time delivery of final report

Technical Capabilities

Specification	Metric
Sampling resolution	≤ 4 × 4 mm
Depth POS	± 0.3 mm
Length POS	± 6.0 mm
Width POS	± 6.0 mm

Metal Loss Threats Addressed

Pitting & Corrosion Cluster

Internal Corrosion

Complex Corrosion

• Internal/external corrosion
• Pitting corrosion 
• Pinholes
• General wall loss 
• Corrosion clusters
• Erosion 
• MIC-related damage
• Laminations 

Operational Capabilities

1D Short Radius U-Bends

Complex Supply Lines

Road / River Crossing

HDPE

• 3-inch and larger pipeline diameters
• 1D short radius U-bends
• Multi-diameter pipelines
• Complex supply lines
• Road & river crossings
• Back-to-back dual plane bends
• Small-bore piping
• Challenging launcher configurations
• Heavy crude applications
• Viscous products
• HDPE and non-metallic pipelines
• Bidirectional inspections
• Insertion via temporary flange

Ultrasonic Metal Loss Fleet

Threat Fleet	Crack Inspection	Viscous medium	1.5D bend navigation	Geometry	XYZ mapping
Wall loss for metal pipelines	🔵	🔴	🔴	🔴	🔴
Wall loss for HDPE pipelines			🔴	🔴	🔴
Wall loss for complex & unpiggable pipelines			🔴	🔴

Note: the metal-loss & crack inspection tools can be combined upon request.

Full-Scale Testing & Validation

Engineers validate all metal loss technologies at Dexon's 7-acre test facility using closed-loop push-through systems and representative defect samples. Artificial metal loss defects, pitting, other corrosion features, and representative pipeline geometries are installed to verify detection capability, sizing accuracy, and tool passage prior to mobilization. Custom defects and pipeline fabrication can also be installed upon request to verify both detection capability and tool passage. Clients are welcome to witness testing, technology demonstrations, and inspection validation activities at Dexon's X-Base research and testing facility.

Need a Wall Loss Inspection Partner?

Wall loss threats require more than simple detection. Operators need reliable sizing, accurate locations, and confidence in the integrity decisions that follow. Combining high-resolution ultrasonic technologies and bespoke engineering solutions, Dexon delivers the inspection data operators need to safely manage their assets. Talk to Dexon's engineering team today about your corrosion threat, pipeline configuration, and inspection requirements.