Inline Inspection

Description

In-Line Inspection (ILI)  is an essential method for evaluating the condition of pipelines. It uses advanced “smart pig” devices, available in both tethered and untethered forms, which employ non-destructive examination (NDE) techniques to identify and assess internal damage.

ILI is capable of detecting and measuring various pipeline irregularities, including:

• Corrosion
• Cracks
• Deformations
• Other structural defects

This technology is widely used in the oil and gas industry, offering a cost-effective and efficient solution for inspecting extensive pipeline systems. Tasks that were once labor-intensive and expensive are now streamlined through ILI technology.

Types of Smart Pigs and Recent Advancements

Several types of smart pigs are available, each designed with specific capabilities to address different inspection needs:

• Corrosion detection tools – Specially designed to identify and measure corrosion.
• Crack detection tools – Ideal for identifying fractures and stress-related defects.
• Deformation detection tools – Effective at detecting dents, buckles, and other shape irregularities.

Recent advancements: Manufacturers are now developing multi-functional smart pigs that combine the features of individual tools. These advanced devices can simultaneously detect various types of damage, improving inspection efficiency and providing a more comprehensive analysis.

In-Line Inspection has transformed the way pipeline integrity is maintained, ensuring safety, reliability, and operational efficiency for critical infrastructure.