ABSTRACT

Engineered Composite Repair (ECR) systems are a beneficial and efficient choice as a rehabilitation option for the oil and gas pipelines and piping networks. However, to successfully implement a process and utilize these systems, a greater understanding of the full range of requirements set forth in the ASME Post Construction Code 2 (PCC-2)1, Article 4.1 Nonmetallic Composite Repair Systems: High Risk Applications, is crucial for successful design, installation, and long-term service. Understanding the full range of requirements found within this document can provide a high level of confidence in using this proven and qualified technology to maintain pipeline integrity in areas of corrosion or mechanical damage. Alternatively, as with any repair method and option, without a solid understanding of the needs and requirements, as well as proper training and skill of the installation and implementation, the chance of disappointment is higher. This paper will discuss key qualification and testing requirements, as well as a full implementation process as outlined within the ASME PCC-22, Article 4.1, including qualifying repair systems for use through physical and long-term testing, design of repairs, installation quality control, training, and documentation requirements.

INTRODUCTION

The composite repair industry has spent untold amounts of money and time in testing, qualifying, and improving composite repair systems. Additionally, the pipeline industry has also been a proactive proponent of these materials by sponsoring numerous joint industry testing programs to bring together many parties to validate composite materials for use in specific defect scenarios. Yet, even with the work done to date, there is still a lack of understanding in the industry in general when it comes to composite materials and how the ASME PCC-21 standard has developed to help guide the industries which use them. Many of the efforts to date have laid a great foundation for the next level of composite usage to build upon, but there is still a long way to go to ensure that all users fully understand the standard in place and how it can be used to better the experience of using composite repair systems for the repair of pipeline and piping defects. While it may not be explicitly stated as such, there is a tried and proven process that can be found within the ASME PCC-21 standard that, if followed, will give a high degree of confidence in composite material implementation and help to ensure success in real world usage. This paper will attempt to inform the reader of this process and provide a road map on how to use the previously mentioned standard to create a successful process for implementing composite repair systems.

This content is only available via PDF.
You can access this article if you purchase or spend a download.