Adaptation of MWM-Array and MFL Technology for Enhanced Detection/Characterization of Damage from Inside Pipelines

This report describes the results of a development project aimed at providing rapid nondestructive evaluation (NDE) methods for the detection of damage in carbon steel pipelines from the inside through coatings and liners. This was accomplished by adapting JENTEK’s Meandering Winding Magnetometer (MWM®)-Array technology to accommodate the coating and liner thicknesses and properties typically used in the oil and gas industry and mounting the MWM-Arrays to prototype scanning fixtures for demonstrating an inspection capability from inside the pipeline. The MWM-Array uses a time-varying magnetic field to induce eddy-currents in the steel components and detects variations in the magnetic field due to damage in the steel component. This technology has been successfully applied in the aerospace and manufacturing industries and provides substantially improved performance for imaging surface and buried damage through coatings and for curved surfaces compared to conventional NDE methods. This project has demonstrated the feasibility of using the MWM-Array technology as an NDE tool for inspection of steel pipelines from inside the pipeline. In addition, applications where MWM approaches could enhance magnetic flux leakage (MFL) operation were investigated.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 102p

Subject/Index Terms

Filing Info

  • Accession Number: 01641088
  • Record Type: Publication
  • Contract Numbers: DTPH56-08-T-000009; DTPH56-07-BAA-000002
  • Files: TRIS, ATRI, USDOT
  • Created Date: Jul 17 2017 9:32AM