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PHMSA Collection

rosaP Repository & Open Science Access Portal

This collection includes the final project reports from the Pipeline and Hazardous Material Safety Administration (PHMSA) Office of Pipeline Safety (OPS) research program. The PHMSA pipeline research mission is to sponsor research and development projects focused on providing near-term solutions for the Nation’s pipeline transportation system that will improve safety, reduce environmental impact, and enhance reliability. Additional information on the program may be found here: https://www.phmsa.dot.gov/research-and-development/pipeline/about-pipeline-research-development Bookmark this collection: https://rosap.ntl.bts.gov/collection_phmsa or https://doi.org/10.21949/1530847.

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Showing 141 - 148 of 148 results
  • Understanding Magnetic Flux Leakage MFL Signals From Mechanical Damage in Pipelines Phase I
    Understanding Magnetic Flux Leakage (MFL) Signals From Mechanical Damage in Pipelines – Phase I
    Clapham, L. ;
    Babbar, V.
    2007-09-18 | PDF
    Pipeline inspection tools based on Magnetic Flux Leakage (MFL) principles represent the most cost-effective method for in-line detection and monitoring of pipeline corrosion defects. Mechanical damage also produces MFL signals, but as yet these signals are not sufficiently well characterized and understood to be used for reliable mechanical damage ...
  • Characterization of Stress Corrosion Cracking Using Laser Ultrasonics Summary
    Characterization of Stress Corrosion Cracking Using Laser Ultrasonics [Summary]
    United States. Department of Transportation. Pipeline and Hazardous Materials Safety Administration
    2007-02-15 | PDF
    Stress Corrosion Cracking (SCC) is a phenomenon where metals, when subjected to a combination of suitable loads, corrosive environment and susceptible metallurgy, develop crack-clusters that may lead to a failure.
  • Biennial Report Summary of Hazardous Materials Transportation 20052006
    Biennial Report Summary of Hazardous Materials Transportation, 2005-2006
    United States. Pipeline and Hazardous Materials Safety Administration
    2007-01-01 | PDF
    The Federal hazmat law requires the United States (U.S.) Department of Transportation (DOT) to protect the public from the risks to life, property, and the environment inherent incommercial transportation of hazardous materials. The Pipeline and Hazardous Materials Safety Administration (PHMSA) has the dual responsibility for regulating and enforci ...
  • Differential Impedance Obstacle Detection Sensor DIOD Phase 2
    Differential Impedance Obstacle Detection Sensor (DIOD) – Phase 2
    Kieba, Max
    2006-11-01 | PDF
    To minimize excavations and public inconvenience, utilities often use horizontal directional drilling (HDD) to create underground pathways for the installation of pipes, cables, and other utility lines. While HDD provides efficiency improvements over conventional open-trench methods, inadvertent strikes of existing lines can occur. To address the i ...
  • Evaluation and Validation of Aboveground Techniques for Coating Condition Assessment
    Evaluation and Validation of Aboveground Techniques for Coating Condition Assessment
    Ruschau, Gregory R. ;
    Kowalski, Angel
    2006-02-28 | PDF
    The overall objective was to determine the accuracy, resolution, and limitations of equipment typically used for modern aboveground ECDA work with respect to locating holidays and disbondments with commonly used coatings with varying spatial relationships and geometrical configurations.
  • Evaluation of Hydrogen Cracking in Weld Metal Deposited Using Cellulosic Electrodes
    Evaluation of Hydrogen Cracking in Weld Metal Deposited Using Cellulosic Electrodes
    United States. Dept. of Transportation. Pipeline and Hazardous Materials Safety Administration
    2005-11-01 | PDF
    Cellulosic-coated electrodes (primarily AWS EXX10-type) are traditionally used for "stovepipe" welding of pipelines because they are well suited for deposition of pipeline girth welds and are capable of high deposition rates when welding downhill. Extensive work was undertaken in the 1970s and 1980s to study heat affected zone (HAZ) hydrogen-assist ...
  • Digital Mapping of Buried Pipelines With a Dual Array System 2005 Final Report
    Digital Mapping of Buried Pipelines With a Dual Array System : 2005 Final Report
    Witten Technologies, Inc.
    2005-03-01 | PDF
    The project carried out under this agreement, which was informally called the "Dual Array Project" (the term we will use in this report), was part of the research efforts at the Office of Pipeline Safety at U.S. DOT, and was one of seven contracts awarded by competitive proposals in October 2002 in the area of damage prevention and leak detection ( ...
  • Application of RemoteField Eddy Current Testing to Inspection of Unpiggable Pipelines
    Application of Remote-Field Eddy Current Testing to Inspection of Unpiggable Pipelines
    United States. Dept. of Transportation. Pipeline and Hazardous Materials Safety Administration
    2003-07-02 | PDF
    Corrosion of buried pipelines can lead to catastrophic failure. Many pipelines are successfully inspected by magnetic flux leakage (MFL) pigs to detect corrosion. However, there is a subset of pipelines for which MFL is not feasible. To inspect those "unpiggable" pipes will require a more adaptable technology. Remote field eddy current (RFEC) is an ...
141 - 148 / 148