Pipeline

Pipeline

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.

Pipeline Corrosion and Prevention—A Comprehensive Guide

This guide explains pipeline corrosion, the different types, and how to prevent it to avoid costly and dangerous failures.

Cased Pipeline Crossings and VCI [Rusty Talks]

Cased pipeline crossings present unique corrosion challenges for operators. This article explores the use of vapor corrosion inhibitors…

Heat Trace Systems and Services

Heat tracing is designed to maintain consistent processing temperatures and protect pipelines and equipment from the adverse effects of cold environments.

Important Safety Update–How to Safely Perform Pipeline Connections

Making safe cathodic protection connections to pipelines using exothermic welding or pin brazing requires trained personnel, proper PPE, continuous air monitoring, and ultrasonic wall thickness verification. This article details the critical safety steps required for both connection methods.

PHMSA Mega Rule

The PHMSA Mega Rule expands federal pipeline safety oversight to all onshore gas gathering pipelines, adding tens of thousands of previously unregulated miles to corrosion control requirements. Affected operators must design, maintain, and test cathodic protection systems under CFR 49 Part 192.

MATCOR Adds a New Drill Rig to Our Fleet

MATCOR has added a compact auger drill rig to its construction fleet, capable of drilling shallow holes up to 100 feet deep in tighter access areas than conventional deep anode rigs. The new rig expands MATCOR’s capacity for shallow and distributive anode bed cathodic protection installations.

SPL™-INT-Anode Impressed Current System for Internal Pipeline Surfaces

SPL™-INT-Anode Impressed Current System for Internal Pipeline Surfaces brochure

At What Distance Does Cathodic Protection Continue to be Effective?

The effective range of cathodic protection along a pipeline depends on the attenuation constant, driven by soil resistivity and coating quality. Well-coated pipelines in high-resistivity soils can be protected 20 or more miles from a single anode bed; poorly coated pipelines may need anode stations every quarter mile.

Coke Column Guidelines for Deep Anode Systems

Intermittent or failed current output from a deep anode system can result from gas accumulation in an undersized coke column. This article examines the importance of proper coke column sizing and the recommended 150 mA/ft² maximum current density at the coke-to-earth interface for reliable performance.

Linear Anodes for Hard-to-Reach Places [Rusty Talks]

Linear anodes installed parallel to aging pipelines in rural Kansas resolved cathodic protection gaps that remote impressed current systems could not address. An Energy Transfer case study shows how proper power feed cable design is essential for achieving even current distribution with linear anode systems.

Pipeline Internal Corrosion Prevention with VCI

Vapor Corrosion Inhibitors (VCIs) provide targeted protection for internal pipeline surfaces, particularly after hydrotesting when residual moisture and bacteria create elevated corrosion risk. MATCOR completed a West Texas project injecting over 24,000 gallons of VCI solution into above-ground pipeline manifolds to…

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