RoMat DMG Tool

key advantages

  • Detection and assessment of material change and hardness anomalies of a sufficient volume with specific magnetic characteristic
  • Differentiation between different types of hard spots
  • Delivering reliable information on the market by combining two separate units in a well-defined dual magnetization approach
  • Performing the ILI service in one run to ensure that inspection results are not affected by external factors across multiple runs
  • Combination of MFL and EC technologies to identify the most common threats in one run (metal loss, pipe grade and hard spots)
  • One-stop technical support from threat identification to ILI execution and data evaluation to the interpretation of results and integrity management implications
  • Inspection in accordance with the latest regulations, such as API 1163

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The Solution

ROSEN’s hard spot service, RoMat DMG, provides operators with a proven approach for the detection, classification and sizing of internal and external hard spots along the entire pipeline. Unique in the market, this In-line Inspection (ILI) system combines a well-established axial Magnetic Flux Leakage (MFL) technology with Eddy Current (EC) in a dual magnetization approach to deliver reliable information on the following:

  • Hard spot location and dimensions
  • Hardness sizing available for typical hard spots

The service delivers data, which forms the basis of a comprehensive integrity approach. Taking into account feature prioritization, susceptibility, verification and response strategies, this approach provides an optimized solution for managing the threat of pipeline hard spots. In addition, ROSEN can provide complementary services, such as in-ditch validation.


All aspects from the inspection request to the final report are covered, with the flexibility to choose from various service options:

  • Cleaning – operational and pre-inspection
  • Speed control – inspection at high flow rates
  • XYZ – route mapping and strain assessment
  • Multi-diameter – pipelines with varying diameters
  • Offshore – long distance and high pressure
  • Data collection for pipe grade determination (RoMat PGS)
  • Post-ILI – data alignment and combined evaluation
  • Integrity Assessments – Risk-Based Inspection (RBI), Fitness-For-Purpose Assessment (FFP), Corrosion-Growth Assessment (CGA)
  • NIMA – versatile cloud-based integrity software
  • Combined Diagnostics – multiple inspection technologies in one run (e.g. RoCorr MFL-A)