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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 101 - 120 of 148 results
  • MWMArray Characterization of Mechanical Damage and Corrosion
    MWM-Array Characterization of Mechanical Damage and Corrosion
    Goldfine, Neil ;
    Washabaugh, Andrew
    2011-02-09 | PDF
    The MWM-Array is an inductive sensor that operates like a transformer in a plane. The MWMArray is based on the original MWM(R) (Meandering Winding Magnetometer) developed at MIT in the 1980s. A rapid multivariate inverse method converts impedance data into images of surface geometry (from the lift-off response), stress and microstructure changes (b ...
  • Effect of Ethanol Blends and Batching Operations on SCC of Carbon Steel
    Effect of Ethanol Blends and Batching Operations on SCC of Carbon Steel
    Sridhar, Narasi
    2011-02-08 | PDF
    This is the draft final report of the project on blending and batching (WP#325) of the Consolidated Program on Development of Guidelines for Safe and Reliable Pipeline Transportation of Ethanol Blends. The other two aspects of the consolidated program, ethanol source effects (WP#323) and monitoring (WP#327) are reported separately. Pipeline compani ...
  • Internal Corrosion Direct Assessment Detection of Water WP 205
    Internal Corrosion Direct Assessment Detection of Water (WP #205)
    Brossia, C. Sean
    2010-12-12 | PDF
    Internal corrosion of natural gas pipelines is the result of interaction between the inside pipe wall and impurities in the product being transported. Such interactions can lead to an overall loss of material thereby thinning the pipe wall and thus reducing the range of operating pressure. Corrosion, however, tends to be localized along the pipelin ...
  • Dissecting Coating Disbondments
    Dissecting Coating Disbondments
    Brossia, Sean
    2010-11-30 | PDF
    Coatings are the primary means for imparting corrosion protection to gas and liquid pipelines. Though cathodic protection is also often applied, if no coating was present the demand for supplied current to effectively catholically protect the pipe would be cost-prohibitive. Because coatings are the main line of defense, understanding how they disbo ...
  • Development of a Hybrid Laser Arc Welding System for Pipeline Construction
    Development of a Hybrid Laser Arc Welding System for Pipeline Construction
    Begg, Darren
    2010-09-08 | PDF
    The construction cost of large welded pipeline systems can represent half the project expenditures, and in many instances the welding costs are a major component. The control or reduction of these costs and rework to eliminate weld faults has been the focus of productivity enhancement efforts across a wide range of industries. To this end, laborato ...
  • Development of a FreeSwimming Acoustic Tool for Liquid Pipeline Leak Detection Including Evaluation for Natural Gas Pipeline Applications
    Development of a Free-Swimming Acoustic Tool for Liquid Pipeline Leak Detection Including Evaluation for Natural Gas Pipeline Applications
    Ariaratnam, Samuel T. ;
    Chandrasekaran, Muthu
    2010-08-01 | PDF
    Significant financial and environmental consequences often result from line leakage of oil product pipelines. Product can escape into the surrounding soil as even the smallest leak can lead to rupture of the pipeline. From a health perspective, water supplies may be tainted by oil migrating into aquifers. A joint academic-industry research initiati ...
  • Evaluation of External Corrosion Rate Using Polarization Resistance and Soil Properties
    Evaluation of External Corrosion Rate Using Polarization Resistance and Soil Properties
    Farrag, Khalid
    2010-08-01 | PDF
    The research project evaluated the use of the Linear Polarization Resistance (LPR) and the Electric Resistance (ER) technologies in estimating the external corrosion growth rates of buried steel pipelines. This was achieved by performing laboratory and field tests to evaluate the technologies and correlating the results with other methods such as m ...
  • Determine the Requirements for Existing Pipeline Tank and Terminal Systems to Transport Ethanol Without Cracking
    Determine the Requirements for Existing Pipeline, Tank and Terminal Systems to Transport Ethanol Without Cracking
    Beavers, John A.
    2010-06-18 | PDF
    The potential exists for stress corrosion cracking (SCC) of carbon steel pipelines transporting fuel grade ethanol (FGE) and FGE- gasoline blends. The objectives of SCC 4-4 were to: 1. Develop data necessary to make engineering assessments of the feasibility of transporting FGE and FGE blends in existing pipelines, 2. Identify ethanol blends that c ...
  • Improvements to the External Corrosion Direct Assessment ECDA Process WP 360 Severity Ranking of ECDA Indirect Inspection Indications Project 242 for Pipeline and Hazardous Materials Safety AdministrationPHMSA
    Improvements to the External Corrosion Direct Assessment (ECDA) Process (WP # 360) Severity Ranking of ECDA Indirect Inspection Indications (Project #242) for Pipeline and Hazardous Materials Safety Administration(PHMSA)
    Corrpro Companies, Inc.
    2010-06-10 | PDF
    On June 28, 2007, PHMSA released a Broad Agency Announcement (BAA), DTPH56-07-BAA-000002, seeking white papers on individual projects and consolidated Research and Development (R&D) programs addressing topics on the pipeline safety program. Although, not specifically suggested by PHMSA, three Direct Assessment projects were proposed by Corrpro base ...
  • ECDA of Cased Pipeline Segments
    ECDA of Cased Pipeline Segments
    Corrpro Companies, Inc.
    2010-06-01 | PDF
    Technologies that are currently used to assess cased pipes include in-line inspection, guided wave ultrasonic, electromagnetic wave, pulsed eddy current, conformable array, bore scope, pressure testing and visual inspection. Several other technologies are under development, some of which have the potential to be better for inspecting cased pipe tha ...
  • Final Report on Improvements to the External Corrosion Direct Assessment ECDA Process WP 360 Potential Measurements on Paved Areas Project 243
    Final Report on Improvements to the External Corrosion Direct Assessment (ECDA) Process (WP # 360) Potential Measurements on Paved Areas (Project #243)
    Corrpro Companies, Inc.
    2010-06-01 | PDF
    On June 28, 2007, PHMSA released a Broad Agency Announcement (BAA), DTPH56- 07-BAA-000002, seeking white papers on individual projects and consolidated Research and Development (R&D) programs addressing topics on their pipeline safety program. Although, not specifically suggested by PHMSA, three Direct Assessment projects were proposed by Corrpro b ...
  • Development of Guidelines for Identification of SCC Sites and Estimation of ReInspection Intervals for SCC Direct Assessment
    Development of Guidelines for Identification of SCC Sites and Estimation of Re-Inspection Intervals for SCC Direct Assessment
    King, Fraser
    2010-05-31 | PDF
    This report describes the development of a series of guidelines for the identification of SCC sites and the estimation of re-inspection intervals. These SCC Guidelines are designed to complement and supplement existing SCC Direct Assessment protocols by drawing on information from past R&D studies. Guidelines are presented for the various mechanist ...
  • Feasibility of Using Plastic Pipe for Ethanol Low Stress Lines
    Feasibility of Using Plastic Pipe for Ethanol Low Stress Lines
    Hammerschmidt, Andy ;
    Ersoy, Daniel
    2010-05-28 | PDF
    This USDOT PHMSA sponsored research project addressed and successfully determined the initial feasibility of using new materials, both polymeric and composites, as low-cost alternatives to specially designed metallic gathering pipelines. The project focused on the potential integrity effects of using such polymer based pipes when used with typical ...
  • Low Cost FullField Surface Profiling Tool for Mechanical Damage Evaluation
    Low Cost, Full-Field Surface Profiling Tool for Mechanical Damage Evaluation
    Klein, Marvin
    2010-03-03 | PDF
    In this project, Intelligent Optical Systems (IOS) developed an inexpensive, full-field, surfaceprofiling tool for mechanical damage evaluation based on the processing of a single digital image. Little operator training is required for acquiring the profile data. As shown in Figure 1-1, the tool consists of a consumer camera on a tripod with an ext ...
  • Digital Imaging of Pipeline Mechanical Damage and Residual Stress
    Digital Imaging of Pipeline Mechanical Damage and Residual Stress
    Jablonski, David A.
    2010-02-19 | PDF
    The purpose of this program was to enhance characterization of mechanical damage in pipelines through application of digital eddy current imaging. Lift-off maps can be used to develop quantitative representations of mechanical damage and magnetic permeability maps can be used to determine residual stress patterns around mechanical damage sites. Not ...
  • Automated Laser Ultrasonic Testing ALUT of Hybrid Arc Welds for Pipeline Construction 272
    Automated Laser Ultrasonic Testing (ALUT) of Hybrid Arc Welds for Pipeline Construction, #272
    Klein, Marvin
    2009-12-22 | PDF
    This report describes a program for developing, testing, and validating in-process automated laser ultrasonic testing (ALUT) of new hybrid laser arc welding (HLAW) welds in the field. The goal of the project is to apply the proven technologies of laser ultrasonics and modern signal processing techniques to the important problem of evaluating HLAW p ...
  • Method for Qualification of Coatings Applied to Wet Surfaces
    Method for Qualification of Coatings Applied to Wet Surfaces
    Gui, Feng
    2009-12-16 | PDF
    The field application of a pipeline repair or rehabilitation coating usually cannot wait until ambient conditions become optimal. In a humid environment, water can condense on the pipe surface because the pipe surface is usually cooler than the ambient air. For buried pipelines, the surface temperature is typically 40-60o F, which easily facilitate ...
  • Method for Qualification of Composite Repairs for Pipelines Patch Repairs and Considerations for Cathodic Protection
    Method for Qualification of Composite Repairs for Pipelines: Patch Repairs and Considerations for Cathodic Protection
    Hill, Davion M.
    2009-12-03 | PDF
    While the mechanical properties of composite repairs for pipelines have been investigated extensively, the performance of the entire metal-composite system has not been addressed with regard to corrosion of the substrate, water intrusion at the composite-metal interface, cathodic disbondment behaviour, and adhesion loss. Both commercial and generic ...
  • The Effect of Cathodic Protection on Cracking of HighStrength Pipeline Steels 350
    The Effect of Cathodic Protection on Cracking of High-Strength Pipeline Steels, #350
    Revie, R.W. ;
    Elboujdaini, M.
    2009-12-02 | PDF
    The objective of this study was to establish the effect of cathodic protection (CP) to produce hydrogen that can cause cracking and in-service failures of high-strength pipeline steels, from X-70 to X-120, and to establish the effectiveness of cathodic protection in mitigating cracking (SCC).
  • Development of HeatAffected Zone Hardness Limits for InService Welding
    Development of Heat-Affected Zone Hardness Limits for In-Service Welding
    Bruce, William A. ;
    Etheridge, Bradley C.
    2009-09-29 | PDF
    Welding onto in-service pipelines is frequently required to facilitate a repair or to install a branch connection using the "hot tapping" technique. Welds made in-service cool at an accelerated rate as the result of the ability of the flowing contents to remove heat from the pipe wall. These welds, therefore, are likely to have hard heat-affected z ...
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