MEIS System for Pipeline Coating Inspection

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• Gas Pipeline
• Leak Detection
• In-Line Inspection/Pigging
• Internal Corrosion
• Stress Corrosion Cracking

Main Objective

The new technology will provide the pipeline owner with substantially more information to support excavation and repair decisions. Most importantly, a disbond can be detected and repaired before corrosion or stress-corrosion cracking have set in, or have reached a level detectable by pigging. MEIS technology could be widely integrated into the offerings of commercial pipeline inspection firms.

Public Abstract

HD Laboratories, Inc. proposes to refine and test a novel method of detecting and assessing coating disbonds and corrosion onset in buried pipelines. This effort is an extension of the work funded at Johns Hopkins University by the Pipeline Research Council International. The technology utilizes Magnetically-assisted Electrochemical Impedance Spectroscopy (MEIS). This technology has the potential to not only identify and size coating disbondments, but to indicate the type of fill medium in the disbond volume, such as water, air, or corrosion product.

The proposed Phase I work will address two objectives: 1) Test an advanced method for implementing MEIS which would form the basis of Phase II and III systems, and 2) Quantify the abilityh of MEIS for characterizing disbonded coating, using the advanced implementation on buried callibration pipes with synthetic disbond.

Final Report

final report 11 07

final_report_11_07.pdf (2,587,334 bytes) [View] [Download/Save...]

Quarterly Status Reports

Progress Report

SBIR_DTRT57-07-C-10004__progress_report_1_31_07.pdf (252,407 bytes) [View] [Download/Save...]