Resources

AC Mitigation: 4 Approaches to Protect Your Assets

Pipelines paralleling high-voltage AC transmission lines require engineered grounding to prevent AC-induced corrosion and safety hazards. The four primary AC mitigation strategies—fault shielding, gradient control mats, lumped grounding, and gradient control wires—are detailed with design and monitoring guidance.

Cathodic Protection—What is it and how does it work?

What is cathodic protection? Understand the basics of cathodic protection. See how it extends the life of critical infrastructure.

Sep 28, 2026

AMPP Central Conference 2026

Join members of the MATCOR team in Booth #122 at the AMPP Central Conference in St. Paul, MN September 28-30, 2026

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Oct 19, 2026

AMPP Eastern Conference 2026

Join members of the MATCOR team in Booth #301 in Myrtle Beach, South Carolina. This year’s conference will feature a Pipeline Integrity focused technical program, bringing together top industry experts, […]

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Nov 16, 2026

AMPP Western Conference 2026

Join Team MATCOR at the AMPP Western Conference in Renton, WA November 16-18, 2026. We’ll be in Booth #303. Ted Huck, MATCOR’s Sales Director, will present on “Cathodic Protection for […]

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Specifying Sand Bedding to Support Above Ground Storage Tank Corrosion Protection

Proper sand bedding under above ground storage tank bottoms is critical to supporting effective cathodic protection and long service life. This article provides specifications for clean washed sand and explains why materials such as oil sand, crushed stone, or asphalt should be avoided under tank bottoms.

Zinc Ribbon Installation Projects

Two MATCOR AC mitigation projects highlight zinc ribbon installation capabilities in challenging environments. The first used horizontal directional drilling in a congested northwestern Ohio corridor, while the second employed specialized rock trenching equipment at a highly rocky site in West Texas.

Soil Resistivity Testing

Soil resistivity is a primary design parameter in cathodic protection engineering, influencing anode selection, quantity, and configuration. This article describes common soil resistivity testing methods and guidelines for collecting accurate field data to support effective CP system design for buried structures.

Matcor Earns Patent for Iron Gopher® Linear Anode

MATCOR earned a design patent for its Iron Gopher® linear anode, the only linear anode designed for horizontal directional drilling. Featuring a braided stainless steel jacket and built-in pulling loop, the Iron Gopher provides approximately 200 percent more pulling strength than conventional HDD anodes.

AC Mitigation Video | Overview of Goals, Strategies and Materials

This nine-minute training video covers the goals, strategies, and materials used in pipeline AC mitigation. Topics include reducing fault condition current density, maintaining safe step and touch potentials below 15 volts, and using AC modeling to evaluate mitigated and unmitigated interference conditions.

Leak Detection and Repair

Leak detection and repair (LDAR) programs monitor petrochemical process equipment for fugitive emissions of volatile organic compounds. This article reviews applicable regulations and presents a five-step framework for developing effective LDAR programs at refinery and industrial facilities.

Corrosion Prevention in Aboveground Storage Tanks

MATCOR’s Ted Huck authored an article in BIC Magazine examining corrosion prevention best practices for aboveground storage tanks. The article compares grid anode and concentric ring cathodic protection configurations and reviews engineering considerations for effective tank bottom protection.

AC Modeling Introduction Video

This training video introduces AC modeling for pipelines affected by high voltage transmission line interference. It explains when a best-guess mitigation approach is appropriate versus when detailed computer modeling is warranted to evaluate induced voltage, fault current, and step and touch potential impacts.

PHMSA Rule Making Updates – a look at what is ahead on the US Regulatory Front

The US pipeline regulatory environment was moving toward new PHMSA rules expanding integrity management and safety requirements. This article reviews key pending changes, including the Liquids Final Rule that extended integrity management and leak detection obligations beyond high consequence areas.

Pipeline Cathodic Protection Design for New Transmission Stations

Growth in US pipeline construction has increased demand for cathodic protection engineering at new transmission stations. This article describes MATCOR’s approach to cathodic protection design for new compressor and pump stations, including the installation advantages of linear anodes in new construction environments.

CP Introduction Video

Created as an internal video to train employees, this video is great for anyone that wants to understand the basics of cathodic protection.

Anode Current Ratings and Soil Resistivity

Anode current ratings are based on expected service life in amp-hours, not soil resistivity, which only affects circuit resistance. This article explains anode life calculations for magnesium and mixed metal oxide anodes and clarifies the distinction between current rating and operating resistance.

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