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IndustryGlossary Term

KPI (Key Performance Indicator)

A measurable target used to evaluate a subcontractor's performance on safety, productivity, or quality. Clients track KPIs to assess contract compliance and award future work. Common field KPIs include incident rates, on-time mobilisation, and equipment uptime.

Related Terms

Steel Erection

Industry

The process of assembling and raising structural steel components on a construction site. For subcontractors, this scope typically requires certified ironworkers, crane coordination, and strict fall-protection compliance. It is often a high-value, schedule-critical phase that affects downstream trades.

Emulsion Breakers

Industry

Chemical additives used in oil and gas processing to separate water from crude oil in production streams. Subcontractors handling fluid management or chemical injection skids are often responsible for their application and dosing. Proper handling requires WHMIS (Workplace Hazardous Materials Information System) compliance and PPE protocols.

Vacuum Excavation (vac-Ex)

Industry

A non-destructive digging method that uses high-pressure water or air to loosen soil, then suctions it into a debris tank. Subcontractors use it for safe excavation near buried utilities, pipelines, and cables. It is commonly required on oil and gas sites where mechanical digging poses strike risks.

Membrane Separation

Industry

A filtration process that uses semi-permeable membranes to separate gases or liquids by molecular size or pressure. Common in natural gas processing and produced water treatment on field sites. Subcontractors may install, inspect, or maintain membrane units as part of facility service scopes.

Unconventional

Industry

Refers to oil and gas extracted from tight rock formations requiring hydraulic fracturing or horizontal drilling. For subcontractors, unconventional work typically means large multi-well pad sites with high crew and equipment demands. Expect fast-paced rotational schedules and specialised service requirements.

Primary Term

Industry

The fixed initial period of a service contract during which either party is typically locked in. For subcontractors, it sets the guaranteed window to recover mobilisation costs and generate revenue. Work orders or rates often cannot be renegotiated until this period expires.

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