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Case Study: Integrated External Corrosion Management for A 12-Inch Crude Oil Pipeline

Picture for Case Study: Integrated External Corrosion Management for A 12-Inch Crude Oil Pipeline
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The Enbridge External Corrosion Prevention team (ECP) is developing an Integrated External Corrosion Management (IECM) process by which management of external corrosion control systems can be optimized while
maintaining asset integrity and safety. IECM is intended to provide a methodology by which operators can move from a traditional reactive approach to a state-of-the-art proactive strategy commensurate with industry expertise and technology. Here we discuss a case study intended to demonstrate and assess the outcomes of IECM. The subject is a 12-inch diameter crude oil pipeline located in North America. Results of the process reveal opportunities for improvement and efficiencies in operation and maintenance (O&M).

Product Number: 51323-18970-SG
Author: Keith Parker, Trey Johnston, Christophe Baeté, Michael Snow
Publication Date: 2023
$0.00
$20.00
$20.00

Recent years have seen advances in controlling external corrosion for buried pipelines. Specialized equipment and
methods for assessing cathodic protection effectiveness and AC corrosion threats, state-of-the art corrosion
sensing equipment, remote monitoring dataloggers, and advanced modeling techniques offer operators
technologically advanced means and methods for managing external corrosion risks. While proof of compliance
continues to rely on long-established field tests and monitoring cycles, there are opportunities to improve external
corrosion management programs to incorporate advanced technologies and methods. This paper presents a case
study demonstrating the Enbridge Integrated External Corrosion Management (IECM) methodology for a 12-inch,
85-mile-long crude oil pipeline located in North America. Pipeline construction, external corrosion history,
modeling, field validation assessment, and resulting IECM protocols are presented and discussed.

Recent years have seen advances in controlling external corrosion for buried pipelines. Specialized equipment and
methods for assessing cathodic protection effectiveness and AC corrosion threats, state-of-the art corrosion
sensing equipment, remote monitoring dataloggers, and advanced modeling techniques offer operators
technologically advanced means and methods for managing external corrosion risks. While proof of compliance
continues to rely on long-established field tests and monitoring cycles, there are opportunities to improve external
corrosion management programs to incorporate advanced technologies and methods. This paper presents a case
study demonstrating the Enbridge Integrated External Corrosion Management (IECM) methodology for a 12-inch,
85-mile-long crude oil pipeline located in North America. Pipeline construction, external corrosion history,
modeling, field validation assessment, and resulting IECM protocols are presented and discussed.

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Enbridge is proposing to develop a program that utilizes state-of-the-art technologies and proven inspection methods to prescribe interventions related to external corrosion mitigation using a predictive, integrated approach. This new program embraces complex problems by collecting, analyzing, and integrating environmental, pipeline integrity, and corrosion control data to predict external corrosion risk with sound engineering models (mechanistic, reliability and risk) to anticipate, prevent, and contain unexpected events.
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