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IndustryGlossary Term

Abandonment

The regulated process of permanently closing a well or facility at end-of-life. Subcontractors are often hired for plugging, reclamation, and site cleanup scopes. Abandonment projects can be steady work but require strict compliance with provincial regulations.

Related Terms

AFE (Authorization for Expenditure)

Industry

A budgeting document used in oil and gas projects that outlines expected costs and seeks approval before work begins. Subcontractors often work under AFEs issued by operators.

Refractory Lining

Industry

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.

Paid-Up Lease

Industry

A lease where all rental payments are made upfront, with no ongoing delay rentals required to keep it active. For subcontractors, this signals stable, long-term site access without mid-contract tenure disruptions. Work scopes on paid-up leases are less likely to be suspended due to expiry pressure.

CAPEX (Capital Expenditure)

Industry

Funds an operator spends on major assets like wells, pipelines, or facilities. High CAPEX cycles mean more subcontract opportunities for field crews and equipment providers. Low CAPEX periods often signal slower work volumes and tighter bid competition.

BHA (Bottom Hole Assembly)

Industry

The collection of drilling tools and equipment at the bottom of the drill string, including the drill bit, drill collars, stabilizers, and downhole motors. For drilling subcontractors, BHA configuration directly impacts drilling performance, tool wear rates, and operational efficiency.

VRU (Vapour Recovery Unit)

Industry

A compression system that captures hydrocarbon vapours from storage tanks or production equipment instead of venting them. Subcontractors are often hired to install, maintain, or service VRUs to meet emissions regulations. Familiarity with VRU work is increasingly required on oil and gas production sites.

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