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Industry Glossary Term

Wall Thickness Assessment

An inspection process that measures remaining material thickness in pipes, vessels, or structural components to detect corrosion or erosion. Subcontractors are often hired to perform these assessments using UT (Ultrasonic Testing) equipment. Results determine whether assets require repair, replacement, or continued monitoring.

Related Terms

TEU (Twenty-foot Equivalent Unit)

Industry

A standard shipping container measurement used to calculate freight capacity and logistics costs on large projects. One TEU equals one standard 20-foot container. Subcontractors mobilising equipment or materials to remote sites often quote and invoice freight in TEUs.

Walkover System

Industry

A above-ground tracking system used in horizontal directional drilling (HDD) to monitor and guide a drill head's position underground. A handheld receiver walks the surface above the drill path, reading signals from a transmitter in the drill head. Subcontractors use this data to steer accurately and document bore paths for client sign-off.

Topside Fabrication

Industry

The construction and assembly of the above-water structures on offshore platforms, including decks, modules, and processing equipment, where subcontractors are typically engaged for specialised trades such as structural welding, pipefitting, electrical, and instrumentation work. For field service companies, topside scopes often involve strict offshore safety certifications, remote logistics, and milestone-based billing tied to fabrication progress.

Cavern Infrastructure

Industry

Underground storage facilities, typically salt caverns, used to store hydrocarbons like natural gas or crude oil. Subcontractors may be engaged for cavern construction, well drilling, piping, and surface facility work. Projects often involve specialised equipment and compressed timelines tied to storage demand cycles.

Co2 Storage (carbon Dioxide Storage)

Industry

The permanent underground injection of captured CO2 into geological formations like depleted reservoirs or saline aquifers. Subcontractors may support well preparation, pipeline installation, monitoring equipment, and injection operations. Demand for specialised field crews is growing as carbon capture projects expand across Canada.

Co2 Pipeline

Industry

A pressurised pipeline system that transports carbon dioxide, typically for carbon capture and storage (CCS) projects or enhanced oil recovery (EOR). Subcontractors may be engaged for construction, inspection, or maintenance under strict pressure and corrosion control requirements. Specialised welding certifications and material handling protocols are commonly required for this work.

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