Case Study: Integrated External Corrosion Management for A 12-Inch Crude Oil Pipeline (AMPP 2023)
Christophe Baeté, Elsyca, Inc.; Keith Parker, Michael Snow, Enbridge LP.; Trey Johnston, Corrpro Companies, Inc.
Paper presented at the AMPP Annual Conference + Expo, Denver, CO, USA, March 2023
Paper Number: AMPP-2023-18970
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.
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).