The Ultrasonic Multi-Channel (UT-MC) Octopus in-line inspection tools have been specifically designed to offer high definition inspection in highly attenuating mediums and difficult to inspect materials such as crude oil and stainless steels.  The ultrasonic sensors are raised towards the pipe wall on mechanical arms, allowing them to extend and contract and maintain close distance with the pipe wall with varying pipe schedules and deformation anomalies.  A list of key advantages, usage, detection capabilities, and specifications can be seen below. Contact a Dexon Technology expert today for more information Dexon’s in-line inspection services.

UT-MC Octopus ILI Tool Diagram

Ultrasonic multi-channel (ut-mc) octopus inline inspection tool diagram with components

Key Advantages

  • High-resolution sampling
  • Inspection and reporting per POF 2016 recommendations
  • Modification available to negotiate multiple pipeline diameters, Equal Unbarred Tees, Wye Tees/Lateral Tees, other difficult pipeline components
  • Able to pass through 1.5D bends
  • Tool customization available for challenging and difficult (unpiggable) pipelines or projects
  • Immediate onsite preliminary data verification
  • Especially designed for challenging/highly attenuating products and materials


Usage, Detection Capabilities, and Tool Specifications

  • Inspection length: 200 km (*Customized solutions available)
  • Standard inspection time: 100 hours (*Customized solutions available)
  • Recommended tool speed: 2.0 m/s (*Customized solutions available)
  • Operating pressure range: 100 BAR (*Customized solutions available)
  • Temperature range: 0°C to 65°C (*Customized solutions available)
  • Minimum wall thickness: 1.5 mm
  • Accuracy of measurement: ± 0.3 mm
  • Internal pipe diameter range: 8” or greater
  • Launching medium: liquid/gas (batching)
  • Transducer frequency: 3.5 hmz to 5 mhz
  • Detectable anomalies: I.D./O.D. metal loss, cracks, deformation, lamination, corrosion, and pitting
  • Automated data analysis and defect detection
  • On and offshore, subsea, and above ground pipelines
  • Oil and gas exploration and production, refineries, petrochemical, mining, and heavy industry
  • Raw A-Scan data recording of all measurements