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Industry Glossary Term

PWHT (Post-weld Heat Treatment)

A controlled heating and cooling process applied to welds after completion to reduce stress and improve strength. Subcontractors must confirm PWHT requirements before mobilising, as it adds time, equipment, and certified personnel to scope. Failing to price it into your bid can significantly erode job margins.

Related Terms

Demand Destruction

Industry

A permanent drop in demand for oil, gas, or construction services, often caused by high prices or economic shifts. Unlike a temporary slowdown, destroyed demand means work volumes may never fully recover. Subcontractors should treat it as a signal to diversify their client base or service offerings.

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.

Hot Shot

Industry

Expedited delivery service for equipment, parts, or materials to remote job sites. Often used for urgent oilfield deliveries.

Ultra-Deepwater

Industry

Offshore drilling operations conducted in water depths exceeding 1,500 metres. Subcontractors working these projects require specialised certifications, equipment ratings, and offshore survival training. Mobilisation costs and logistics complexity are significantly higher than shallow-water scopes.

Bakken Play

Industry

A major tight-oil producing region spanning North Dakota, Montana, and southern Saskatchewan and Manitoba. Subcontractors working here should expect high-volume horizontal drilling and multi-stage fracturing scopes. Seasonal road bans and remote logistics significantly impact crew mobilisation and equipment scheduling.

Workover

Industry

Operations performed on an existing well to restore, maintain, or improve production. Includes activities like recompletions, artificial lift installation, and remedial cementing.

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