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IndustryGlossary Term

HRSG (Heat Recovery Steam Generator)

A large boiler unit that captures exhaust heat from gas turbines to produce steam for power generation. Subcontractors are commonly engaged for HRSG installation, maintenance, and inspection scopes. Work typically requires certified welders, boilermakers, and compliance with pressure vessel regulations.

Related Terms

Cold Milling

Industry

A surface removal process where a rotating drum grinds down asphalt or concrete without heat. Subcontractors use it for road rehabilitation, pad preparation, and surface levelling on well sites or construction projects. Reclaimed material is often reused, reducing disposal costs.

Utility Relocation

Industry

The process of moving existing underground or overhead utilities — such as gas lines, water mains, or electrical conduits — to accommodate new construction or pipeline work. Subcontractors are often hired specifically for this scope, which requires utility locates and coordination with municipal or utility owners. Delays in relocation can directly impact your crew's mobilisation schedule and project milestones.

COR (Certificate of Recognition)

Industry

A voluntary safety certification program in Canada that recognizes employers who have developed health and safety management systems that meet established standards. Required by many operators in Alberta and Western Canada.

BOE (Barrel of Oil Equivalent)

Industry

A standardised unit of energy measurement that converts different types of oil and gas production into equivalent barrels of crude oil, used by operators to report total production volumes when determining project scope and service requirements for subcontractors.

Midstream Consolidation

Industry

The merging or acquisition of pipeline, processing, and storage companies into fewer, larger operators. For subcontractors, this can shift approved vendor lists and contract terms overnight. Expect longer onboarding processes and tighter pricing pressure from consolidated procurement teams.

Liquefaction Train

Industry

A complete processing system that cools natural gas into liquid LNG (Liquefied Natural Gas) for storage and transport. Each train is a major construction and maintenance scope, often requiring large, specialised subcontractor workforces. Shutdowns and turnarounds on these units are high-value contracts with strict schedule demands.

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