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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 121 - 140 of 148 results
  • Remaining Strength of Corroded Pipe Under Secondary Biaxial Loading
    Remaining Strength of Corroded Pipe Under Secondary (Biaxial) Loading
    Liu, J. ;
    Chauhan, V.
    2009-08-01 | PDF
    Corrosion metal-loss is one of the major damage mechanisms to transmission pipelines worldwide. Several methods have been developed for assessment of corrosion defects, such as ASME B31G, RSTRENG and LPC. These methods were derived based on experimental tests and theoretical/numerical studies of the failure behavior of corroded pipelines subjected ...
  • Structural Repair of Steel Piping by InSitu Sleeving of Nanostructured Materials
    Structural Repair of Steel Piping by In-Situ Sleeving of Nanostructured Materials
    Provenzano, Virgil
    2009-06-03 | PDF
    The focus of Task 1 is to demonstrate the repair of degraded pipeline steel using patches of high strength nanocrystalline metal. As mentioned in Bi-Monthly Research Progress Report #2, the cracking caused by corrosion damage in the steel pipe section provided by TransCanada PipeLines via Dr. Fraser King (supporting scientist to Integran USA) was n ...
  • LongTerm Monitoring of Cased Pipelines Using Long Range GuidedWave Technique
    Long-Term Monitoring of Cased Pipelines Using Long Range Guided-Wave Technique
    Janega, George
    2009-05-19 | PDF
    Integrity management programs for gas transmission pipelines are required by The Office of Pipeline Safety (OPS)/DOT. Direct Assessment (DA) and 'Other Technologies' have become the focus of assessment options for pipeline integrity on cased crossings. Long Range Guided Ultrasonics (LRUT) may qualify as an 'Other Technology'. The Magnetostrictive S ...
  • New InField Composite Repair Techniques for Transmission or Distribution Pipelines
    New In-Field Composite Repair Techniques for Transmission or Distribution Pipelines
    Bennett, Barton
    2009-05-18 | PDF
    In-field repair of a damaged pipeline must be performed safely, efficiently, rapidly and reliably. Reinforcement of damaged pipelines is typically accomplished by welding a repair patch and then recoating the repaired area. The welded full-encirclement sleeve is still the most common repair system due to the lower risk, potential cost savings, and ...
  • Infield Welding and Coating Protocols
    In-field Welding and Coating Protocols
    Miller, Michael J.
    2009-05-12 | PDF
    Gas Technology Institute (GTI) and Edison Welding Institute (EWI) created both laboratory and infield girth weld samples to evaluate the effects of weld geometry and hydrogen off-gassing on the performance of protective coatings. Laboratory made plate welds were used to tightly control geometric differences and in-field welds were created to mimic ...
  • Plastic Pipe Failure Risk and Threat Analysis
    Plastic Pipe Failure, Risk, and Threat Analysis
    Maupin, Julie ;
    Mamoun, Michael
    2009-04-29 | PDF
    The three primary failure modes that may be exhibited by polyethylene (PE) gas pipe materials were described in detail. The modes are: ductile rupture, slow crack growth (SCG), and rapid crack propagation (RCP). Short term mechanical tests were evaluated for usefulness in determining the relative resistance of PE materials to SCG failures. Long-ter ...
  • Alternate Welding Processes for InService Welding
    Alternate Welding Processes for In-Service Welding
    Begg, Darren
    2009-04-24 | PDF
    The primary objective of this project is to define parameters and conditions associated with each advanced welding process that can preclude hydrogen cracking and burn-through in a reproducible manner. A significant, process dependent, in-service welding concern that can be addressed by modern power sources is the reliable control of heat input and ...
  • Augmenting MFL Tools with Sensors That Assess Coating Condition
    Augmenting MFL Tools with Sensors That Assess Coating Condition
    Nestleroth, J. Bruce ;
    Van Velsor, Jason K.
    2009-03-16 | PDF
    External coatings are routinely used to protect transmission pipelines from corrosion; however, coatings may degrade or disbond over time enabling corrosion to occur. Transmission pipeline operators often use magnetic flux leakage (MFL) in-line inspection tools to detect metal loss corrosion defects. Rather than finding the cause of a problem, fail ...
  • Effect of Surface Preparation on Residual Stresses in Multilayer Coatings and the Consequences for Disbondment Following Construction Damage and Exposure to InService Stress
    Effect of Surface Preparation on Residual Stresses in Multilayer Coatings and the Consequences for Disbondment Following Construction Damage and Exposure to In-Service Stress
    Santos, Bill ;
    Botros, Matthew
    2009-01-01 | PDF
    Underground pipelines are protected by a combination of cathodic protection and a protective coating. Multi-layer coatings offer protection against corrosion and from mechanical damage during construction or during service. Multi-layer coatings are widely used in Europe and other countries but have not been used as extensively in North America desp ...
  • Guidelines for Constructing Natural Gas and Liquid Hydrocarbon Pipelines Through Areas Prone to Landslide and Subsidence Hazards
    Guidelines for Constructing Natural Gas and Liquid Hydrocarbon Pipelines Through Areas Prone to Landslide and Subsidence Hazards
    C-CORE  ...
    2009-01-01 | PDF
    These guidelines provide recommendations for the assessment of new and existing natural gas and liquid hydrocarbon pipelines subjected to potential ground displacements resulting from landslides and subsidence. The process of defining landslide and subsidence hazards is highly dependent upon the judgments of experienced and knowledgeable specialist ...
  • Liquid Pipeline Operators Control Room Human Factors Risk Assessment and Management Guide
    Liquid Pipeline Operator’s Control Room Human Factors Risk Assessment and Management Guide
    McCallum, Marvin C. ;
    Richard, Christian M.
    2008-11-26 | PDF
    The purpose of this guide is to document methodologies, tools, procedures, guidance, and instructions that have been developed to provide liquid pipeline operators with an efficient and effective means of managing the human factors risks in their control rooms. A companion technical report to this document has been prepared, which documents the tec ...
  • Human Factors Analysis of Pipeline Monitoring and Control Operations Final Technical Report
    Human Factors Analysis of Pipeline Monitoring and Control Operations: Final Technical Report
    McCallum, Marvin C. ;
    Richard, Christian M.
    2008-11-26 | PDF
    The purpose of the Human Factors Analysis of Pipeline Monitoring and Control Operations project was to develop procedures that could be used by liquid pipeline operators to assess and manage the human factors risks in their control rooms that may adversely affect pipeline monitoring and control operations. The three primary objectives of the projec ...
  • Enhanced Defect Detection and Sizing Accuracy Using Matrix Phased Array Ultrasonics Tools
    Enhanced Defect Detection and Sizing Accuracy Using Matrix Phased Array Ultrasonics Tools
    Spencer, Roger{51779} ;
    Todorov, Evgueni{54831}
    2008-09-15 | PDF
    The overall objective this research program was to enhance detection and sizing accuracy of crack-like and planar imperfections created during pipeline fabrication and service using matrix phased array (MPA) ultrasonics tools with the goal of improving the predicted reliability of pipelines during early design stage and service life. The technical ...
  • Characterization of Stress Corrosion Cracking Using Laser Ultrasonics Final Report
    Characterization of Stress Corrosion Cracking Using Laser Ultrasonics [Final Report]
    Klein, Marvin
    2008-08-31 | PDF
    This paper focuses on the application of laser ultrasonics to the characterization of stress corrosion cracking (SCC). SCC is the phenomenon in metals wherein the simultaneous presence of tensile stress, a corrosive environment and a susceptible metallurgy leads to the nucleation and propagation of highly irregular and complex cracks, usually found ...
  • Demonstration of ECDA Applicability and Reliability for Demanding Situations
    Demonstration of ECDA Applicability and Reliability for Demanding Situations
    Ersoy, Daniel
    2008-08-31 | PDF
    On June 2, 2005, PHMSA issued the fifth Broad Agency Announcement, #DTPH56- 05-BAA-0001, which included research to improve the understanding of Direct Assessment (DA) methods and practices in challenging situations. This project received support from a group of over two dozen gas company participants, some of which contributed pipeline segments fo ...
  • Hybrid LaserGMAW of High Strength Steel Gas Transmission Pipelines
    Hybrid Laser/GMAW of High Strength Steel Gas Transmission Pipelines
    United States. Dept. of Transportation. Pipeline and Hazardous Materials Safety Administration
    2008-07-01 | PDF
    Pipelines will be an integral part of our energy distribution systems for the foreseeable future. Operators are currently considering the installation of tens of billions of dollars of pipeline infrastructure. In a number of cases, the cost of exporting the product will have a dominating influence on the viability of the upstream production facilit ...
  • Project Report Active Pipeline Encroachment Detector Phase I
    Project Report: Active Pipeline Encroachment Detector (Phase I)
    Ji, Jim ;
    Chan, Andrew K.
    2008-06-10 | PDF
    Of the many pipeline accident causes that occur to oil and gas pipelines, approximately 40% of are caused by third-party excavating activities into the buried pipeline right of way (ROW). According to DOT statistics, excavation damage is the second leading cause of accidents for hazardous liquid pipelines, after corrosion. In particular, the potent ...
  • Investigate Fundamentals and Performance Improvements of Current InLine Inspection Technologies for Mechanical Damage Detection
    Investigate Fundamentals and Performance Improvements of Current In-Line Inspection Technologies for Mechanical Damage Detection
    McNealy, Richard ;
    Gao, Ming
    2008-05-01 | PDF
    This Phase I report provides a comprehensive and in-depth review of the current status of in-line inspection technologies, including, but not limited to, Magnetic (Axial MFL, Circumferential MFL), Ultrasonic (UT), and Geometrical (Caliper) methods, in terms of their capabilities, limitations and potentials in detection, discrimination and character ...
  • Model Modules to Assist Assessing and Controlling SCC
    Model Modules to Assist Assessing and Controlling SCC
    Castaneda, H. ;
    Leis, B. N.
    2008-04-04 | PDF
    This project developed and validated tools to assist in integrity assessment and management both forms of SCC. Because the understanding that underlies integrity management tools was most comprehensive for high-pH SCC, development targeted NN-pH SCC, with work on high pH SCC being more application oriented. To broaden the utility of the deliverable ...
  • External Corrosion Direct Assessment for Unique Threats to Underground Pipelines
    External Corrosion Direct Assessment for Unique Threats to Underground Pipelines
    Yunovich, Mark ;
    Waters, Steven
    2007-11-01 | PDF
    External corrosion direct assessment process (ECDA) implemented in accordance with the NACE Recommended Practice RP0502-02 relies on above ground DA techniques to prioritize locations at risk for corrosion. Two special cases warrant special consideration. 1. In situations when the ECDA process has to be conducted in areas with AC and DC (static and ...
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