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IndustryGlossary Term

Thermal Hotspot

An area of abnormally high surface temperature detected during infrared inspection of electrical, mechanical, or process equipment. Hotspots often signal failing components, loose connections, or insulation breakdown requiring urgent repair. Subcontractors must document and report findings promptly to avoid liability and costly unplanned shutdowns.

Related Terms

Exploratory Well

Industry

A well drilled in an unproven area to determine whether hydrocarbons are present, typically representing higher-risk, shorter-duration work for subcontractors with less certainty of follow-on contracts compared to development drilling programmes. Field service companies should account for the speculative nature of these projects when negotiating mobilisation costs and contract terms.

EPC (Engineering, Procurement, Construction)

Industry

A project delivery model where one main contractor handles all phases from design to completion, typically creating multiple subcontracting opportunities for field service companies across different project phases. For subcontractors, EPC projects often mean working under a prime contractor who coordinates all trades and manages the overall timeline and specifications.

MWD (Measurement While Drilling)

Industry

A real-time data acquisition process used during directional drilling that transmits downhole measurements — such as wellbore trajectory, formation data, and tool orientation — to surface crews without interrupting operations. For subcontractors, MWD services represent a specialised scope of work requiring certified technicians and dedicated equipment, often billed as a separate line item on drilling contracts.

LNG (Liquefied Natural Gas)

Industry

Natural gas cooled to -162°C to become liquid for easier transport and storage, creating specialized work opportunities for subcontractors in cryogenic equipment maintenance, pipeline construction, and terminal facilities that require specific safety certifications and cold-weather expertise.

Near-Field Exploration

Industry

Exploration activity targeting new reserves close to existing producing infrastructure. For subcontractors, it often means faster mobilisation and shorter campaigns using established site access. Expect work scopes similar to existing nearby operations, with familiar equipment and logistics.

Sequencing (construction)

Industry

The planned order in which construction tasks must be completed before the next trade can begin work. Subcontractors depend on accurate sequencing to schedule crews and avoid costly downtime. Delays in one phase can push back your mobilisation and affect your invoicing schedule.

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