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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 1 - 20 of 148 results
  • 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 ...
  • Internal Corrosion Detection in Liquids Pipelines
    Internal Corrosion Detection in Liquids Pipelines
    Sabata, Ashok
    2012-01-01 | PDF
    PHMSA project DTRS56-05-T-0005 "Development of ICDA for Liquid Petroleum Pipelines" led to the development of a Direct Assessment (DA) protocol to prioritize locations of possible internal corrosion. The underlying basis LP-ICDA is simple; corrosion in liquid petroleum systems is most likely where water and/or solids accumulate. Despite the develop ...
  • 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 ...
  • Acousticbased Technology to Detect Buried Pipes
    Acoustic-based Technology to Detect Buried Pipes
    Kothari, Kiran ;
    Wu, Ching-Chen
    2011-07-29 | PDF
    The objective of this project is to build a pre-commercial device, improve its performance to detect multiple buried pipes, and evaluate the pre-commercial device at utility sites. In the past, Gas Technology Institute (GTI) and SoniVerse Inc. (SVI) with support from Operations Technology Development, NFP (OTD) have developed an acoustic-technology ...
  • 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 ...
  • 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 ...
  • Stress Corrosion Cracking of Pipeline Steels in Fuel Grade Ethanol and Blends Study to Evaluate Alternate Standard Tests and Phenomenological Understanding of SCC
    Stress Corrosion Cracking of Pipeline Steels in Fuel Grade Ethanol and Blends - Study to Evaluate Alternate Standard Tests and Phenomenological Understanding of SCC
    Singh, Preet M.
    2011-10-30 | PDF
    Main aim of this project was to evaluate alternate standard test methods for stress corrosion cracking (SCC) and compare them with the results from slow strain rate test (SSRT) results under equivalent environmental conditions. Other important aim of this project was to develop an phenomenological understanding of SCC of pipeline steels in fuel gra ...
  • Project WP474 Integrated Internal Inspection and Cleaning Tool Technology for Pipelines
    Project WP#474: Integrated Internal Inspection and Cleaning Tool Technology for Pipelines
    O'Brien, John ;
    Wood, Ian
    2012-08-30 | PDF
    PHMSA provide notification to Electricore that Tech Report Transaction Agreement (OTA) DTPH56-10-T- 000011 was terminated in July 2011. Prior to the decision to terminate the project, a number of tasks and activities were completed by the Project Team as described in the approved technical proposal and scope of work. This report provides a final de ...
  • 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 ...
  • 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 ...
  • GlassPolymer Composite High Pressure Pipes and Joints Design Manufacture Characterize
    Glass-Polymer Composite High Pressure Pipes and Joints – Design, Manufacture & Characterize
    GangaRao, Hota V S ;
    Halabe, Udaya B
    2018-09-29 | PDF
    The United States of America has about 2.65 million miles of distribution mains plus transmission lines. Even though it has been established that smaller diameter pipelines are safer to operate, gas pipeline industry needs cost-effective ways to transmit larger volumes of gas over long distances at higher pressures with at least 50 years of service ...
  • Methane Emissions Quantification Process
    Methane Emissions Quantification Process
    NYSEARCH/Northeast Gas Association
    2019-03-06 | PDF
    There are a growing number of technology providers approaching Local Distribution Companies with tools and instruments that need to be tested and validated for the acceptable application in the gas distribution environment. Local Distribution Companies (LDCs) currently lack a standard test protocol for assessing technologies claiming to be capable ...
  • Characterization of Modern HighToughness Steels for Fracture Propagation and Arrest Assessment Phase II
    Characterization of Modern High-Toughness Steels for Fracture Propagation and Arrest Assessment – Phase II
    Weeks, Timothy
    2019-12-02 | PDF
    The development of high toughness linepipe materials is reducing the relevance of current material test methods and their application to design. Current fracture mechanics models, plastic collapse schemes and test methods are inadequate to determine the crack arresting capacity of a particular steel alloy/linepipe component. Furthermore, relatively ...
  • Mitigating Pipeline Corrosion Using A Smart Thermal Spraying Coating System
    Mitigating Pipeline Corrosion Using A Smart Thermal Spraying Coating System
    Azarmi, Fardad ;
    Huang, Ying
    2018-12-20 | PDF
    Corrosion is recognized as one major reason for the failures of on-shore underground steel pipes, which results in increase in maintenance cost and system downtime. To mitigate corrosion, a common method is to combine cathodic protection and coating techniques such as polymeric and metallic coatings. Polymeric coatings dominate the coating techniqu ...
  • EMAT Guided Wave Technology for Inline Inspections of Unpiggable Natural Gas Pipelines
    EMAT Guided Wave Technology for Inline Inspections of Unpiggable Natural Gas Pipelines
    Ren, Baiyang ;
    Xin, Junjun
    2018-09-26 | PDF
    The CIRRIS XI robot has made great strides in overcoming major challenges associated with internal assessment of cast iron pipelines. Most importantly the CIRRIS XI robot can measure wall thickness and stress and detect defects while providing significant improvements in accuracy and resolution using an EMAT normal beam sensor. Another promising ty ...
  • Dent Fatigue Life Assessment Development of Tools for Assessing the Severity and Life of Dent Features
    Dent Fatigue Life Assessment: Development of Tools for Assessing the Severity and Life of Dent Features
    Semiga, Vlad
    2012-01-10 | PDF
    Federal regulatory standards require repair of dents with depths exceeding 6% of the pipeline diameter and for dents exhibiting signs of mechanical damage interacting with secondary features. However, leaks have been known to occur at dents with depths less than 3% of the pipe diameter and dents interacting with secondary features have been known t ...
    Supporting Files
  • 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 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 ...
  • Development of a Commercial Model to Predict Stress Corrosion Cracking Growth Rates in Operating Pipelines
    Development of a Commercial Model to Predict Stress Corrosion Cracking Growth Rates in Operating Pipelines
    Song, Frank ;
    Lu, Baotong
    2011-06-01 | PDF
    Stress corrosion cracking (SCC) in pipelines occurs under two broad pH conditions— alkaline pH and near-neutral pH. SCC can lead to leaks, sudden bursts, or explosions of gas and liquid pipelines. Crack growth rate (CGR) is a critical parameter to be considered when the inspection interval for in-line inspection (ILI) or pressure test, or the reass ...
  • GPSBased Excavation Encroachment Notification
    GPS-Based Excavation Encroachment Notification
    Farag, Alicia
    2011-10-31 | PDF
    Excavation damage is the primary threat to the integrity of the natural gas distribution system. According to the Common Ground Alliance, the two primary root causes of excavation damage are failure to notify the one-call center and careless excavation near utility lines. The objective of this project was to develop and demonstrate a GPS-based syst ...
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