Project Spotlight: 300-mile Midstream Pipeline Network Cathodic Protection Optimization

Cathodic Protection Optimization Adds to Lifespan of Pipeline Network


The integrity of our oil and gas client’s (company confidential) gas pipeline network is now extended for years to come and working at peak efficiency, after optimization of their pipeline’s cathodic protection (CP) system.

Project Scope

Although not required by federal regulations, our client wanted to bring midstream gathering lines into compliance with DOT standards.

EarthRes was selected for this project based on our excellent track record of providing outstanding service and innovative solutions on past projects, and for the training and experience of our NACE-Certified team of technicians. This project was extensive and challenging as it covered a 300-mile stretch of the client’s intrastate gas pipeline network. This project required meticulous planning and execution, as EarthRes identified improvement opportunities to upgrade and optimize the client’s CP system and made immediate modifications and adjustments in the field to improve the performance of their galvanic and impressed circuit CP system.

Innovative Solutions

The EarthRes team of engineers and technicians provided project oversight, visual inspection, measurement of direct current (DC) structure to soil potentials and DC output of existing rectifiers, long-term test station repair, rectifier tuning, repaired failed insulated flange locations, field repair of anodes, and short circuiting issue resolutions. EarthRes also compiled compliance documentation, developed an on-going maintenance schedule and provided CP training for client staff.

This project being no exception, with proper, continued maintenance the client is now ensured of the integrity and longevity of their midstream pipeline network.

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