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Industry Glossary Term

Refractory Lining

Heat-resistant material installed inside furnaces, boilers, and process vessels to protect steel from extreme temperatures. Subcontractors are often hired for installation, inspection, and repair during turnarounds. Proper curing and dryout procedures are critical to avoid costly failures.

Related Terms

WCB (Workers' Compensation Board)

Industry

Provincial agencies in Canada that provide workplace injury insurance. Contractors must maintain WCB coverage and good standing to work on most sites.

CCUS (Carbon Capture, Utilization, and Storage)

Industry

Technology that captures CO₂ emissions from industrial sites and either stores or repurposes them. Subcontractors are increasingly hired to build, maintain, and service CCUS infrastructure. Familiarity with these projects opens doors to growing work in emissions-reduction programmes.

Tight Gas

Industry

Natural gas trapped in low-permeability rock formations that require hydraulic fracturing or horizontal drilling to extract. For subcontractors, tight gas projects typically involve intensive well stimulation work and longer mobilisation cycles. Expect higher equipment demands and specialised crew certifications on these sites.

Prime Contractor

Industry

The main company awarded a project contract who then hires subcontractors to perform portions of the work. As a sub, your agreement, invoicing, and compliance obligations flow through them—not the end client. They carry overall site liability and typically control scheduling and scope.

Crawler Crane

Industry

A large lifting crane mounted on tracked undercarriage, used for heavy lifts on unstable or soft ground at oil and gas and construction sites. Subcontractors often source these through specialised rigging firms on a day-rate or project basis. Confirm ground-bearing capacity and operator certifications before mobilising.

LOL (Limitation of Liability)

Industry

A contract clause capping the maximum amount a party can be held responsible for if something goes wrong. For subcontractors, this limits financial exposure from claims, damages, or project losses. Always review these caps carefully — they may be set far below your actual risk.

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