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IndustryGlossary Term

FFS (Fitness-for-service)

A structured engineering assessment that determines whether ageing or damaged equipment is safe to keep operating. Subcontractors are often hired to collect inspection data, run integrity tests, or execute repairs recommended by FFS evaluations. Understanding FFS scope helps field crews prioritise work orders and meet client fitness thresholds before returning assets to service.

Related Terms

Mud Reclaimer

Industry

A piece of solids-control equipment that separates reusable drilling fluid from cuttings on the rig site. Subcontractors operating or maintaining this unit help reduce fluid disposal costs and waste volumes. It is commonly found in directional drilling and HDD (Horizontal Directional Drilling) scopes.

2d/3d Seismic Survey

Industry

A geophysical mapping operation that uses sound waves to image underground formations before drilling begins. Subcontractors are hired to deploy geophones, vibroseis trucks, or marine streamers across large survey grids. Work is often remote and time-sensitive, with crews mobilising quickly once permits are secured.

Substation

Industry

A facility that converts high-voltage electrical power to usable levels for a job site or facility. Subcontractors in construction and oil & gas often work in, around, or on behalf of substations. Strict access controls and electrical safety certifications are typically required.

Candu (canadian Deuterium Uranium) Reactor

Industry

A Canadian-designed nuclear reactor that uses heavy water as a moderator and coolant. Subcontractors working on maintenance or upgrades face strict nuclear regulatory compliance and specialised certification requirements. Expect rigorous site access controls, radiation safety training, and detailed documentation standards.

Feedgas

Industry

Raw natural gas supplied to a processing plant or facility for treatment and conditioning. Feedgas volumes and composition directly affect how long subcontractors are mobilised on-site. Changes to feedgas quality can trigger scope adjustments and additional service orders.

Abandonment

Industry

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.

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