Composite Repair Guideline Document for Nonmetallic Repairs for Offshore Applications

Overview

Main Objective

This project which is co-sponsored by DOI & DOT, aims to develop a Composite Repair Guideline Document for Nonmetallic Repairs for Offshore Applications including a state-of-the-art assessment of current repair technology and full-scale testing to support the effort. This project will address performance issues related to both offshore and onshore pipeline-related facilities.

DOI/Bureau of Safety and Environmental Enforcement (BSEE) awarded the project with total costs of $649,520. The cost sharing was BSEE ($502,020) + PHMSA ($147,500).

Please visit the BSEE page for more information and further project reporting at http://www.bsee.gov/Technology-and-Research/Technology-Assessment-Programs/Projects/Project-763/ .

Public Abstract

For the better part of the past 20 years the pipeline industry has used composite materials to repair corrosion in gas and liquid pipelines. The goal for making these repairs is to restore damaged sections of pipe to performance levels that, at a minimum, are equal in strength to the original pipe. Much of the research associated with the development of composite repair systems has been funded by the gas transmission pipeline industry, with an emphasis on repairing high pressure pipelines. The primary use of composite materials has been to repair corrosion, although research dating back to the mid-1990s has also been conducted for repairing dents and other mechanical damage. More recently, efforts have been undertaken to evaluate the ability of composite materials to reinforce a wider range of pipeline anomalies including wrinkle bends, branch connections, elbows/bends, planar defects, and girth welds. This report was developed to provide guidelines for using composite repair materials in both onshore and offshore pipeline applications. It has been created for use by BSEE and PHMSA as a part of the program entitled Composite Repair Guideline Document for Nonmetallic Repairs for Offshore Applications that was executed under Contract No. E15PC00003.

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