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Industry Glossary Term

Recommissioning

The process of reactivating idle or mothballed equipment and facilities for resumed operations. Subcontractors are often mobilised to inspect, test, and restore systems to operational standards. Scope can be extensive, requiring multi-trade crews and detailed documentation.

Related Terms

Fired Heater

Industry

A combustion-based unit that uses burners to heat process fluids in oil and gas facilities. Subcontractors are often called in for inspection, refractory work, burner maintenance, and turnaround servicing. Hot work permits and confined space protocols typically apply.

Well Intervention

Industry

Any post-completion operation performed on a producing well to restore or improve output. Subcontractors are often mobilised for wireline, coiled tubing, or pump work during these campaigns. Scope can change quickly, so confirm work orders before committing crew and equipment.

Alternative Delivery

Industry

A project procurement model where design and construction are bundled under one contract, such as design-build or EPC. Subcontractors often engage through a prime contractor rather than directly with the owner. Scope, risk, and payment terms can differ significantly from traditional bid-build arrangements.

NOC (National Oil Company)

Industry

A state-owned oil producer that controls exploration and production within its country. NOCs often require local content compliance, affecting subcontractor hiring and procurement. Payment cycles and approval chains can be longer than with private operators.

High-Temperature Creep

Industry

The slow, permanent deformation of metal components under sustained stress at elevated temperatures. Subcontractors must watch for creep in pressure vessels, piping, and structural welds during high-heat operations. Missed signs can lead to equipment failure, costly shutdowns, and liability exposure.

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.

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