EMAT Sensor for Small Diameter and Unpiggable Pipes; Prototype and Testing

The objective of this project is to build and test an Electro-Magnetic Acoustic Transducer (EMAT) sensor prototype to detect and quantify wall loss and longitudinal cracks in metallic pipes. The sensor will be used to assess small-diameter and unpiggable pipes containing fittings and other restricting features. The initial target pipe diameter is 8 inches, however the commercial goal is to build tools that can navigate in 6- to 12-inch pipes. These sizes are typically used in unpiggable natural gas transmission and distribution systems. Other sizes will be considered based on industry needs. A laboratory assembly (bench-scale unit) has been successfully completed and tested in Phase-1. The work tasks in this proposal build on the results from Phase-1 and include: 1) Build a prototype of the unit with the data management system and a pull-out mechanism for internal testing of pipe sections with controlled and natural cracks and flaws; and 2) Establish the performance criteria and assess the minimum flaw sizes to be reliably detected by the device.

Project

  • Status: Active
  • Funding: $591777
  • Contract Numbers:

    DTPH5615T00018

  • Sponsor Organizations:

    Pipeline and Hazardous Materials Safety Administration

    U.S. Department of Transportation
    East Building, 2nd Floor 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Pipeline and Hazardous Materials Safety Administration

    U.S. Department of Transportation
    East Building, 2nd Floor 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Merritt, James

  • Performing Organizations:

    Operations Technology Development NFP

    1700 South Mount Prospect Road
    Des Plaines, IL  United States  60018
  • Principal Investigators:

    Droessler, Maureen

  • Start Date: 20150930
  • Expected Completion Date: 20170929
  • Actual Completion Date: 0
  • USDOT Program: Pipeline Safety Research
  • Subprogram: Pipeline Safety

Subject/Index Terms

Filing Info

  • Accession Number: 01674990
  • Record Type: Research project
  • Source Agency: Department of Transportation
  • Contract Numbers: DTPH5615T00018
  • Files: RiP, USDOT
  • Created Date: Jul 13 2018 1:38PM