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Industry Glossary Term

Modular Construction

A build method where structures are assembled from prefabricated units manufactured offsite, then transported and installed on location. Subcontractors are often scoped for site prep, mechanical tie-ins, or installation crews rather than full builds. Work tends to come in concentrated, short-duration packages tied to delivery schedules.

Related Terms

Cavern Storage

Industry

Underground storage facilities carved out of salt formations or rock, used to hold large volumes of natural gas, crude oil, or other hydrocarbons. Subcontractors handle construction, maintenance, inspection, and integrity testing at these sites, often needing confined-space and geotechnical certifications. Injection and withdrawal seasons create predictable maintenance windows, helping field service companies plan mobilisation.

Peaking Facility

Industry

A peaking facility is an energy plant activated only during periods of high demand, such as extreme cold snaps. For subcontractors, these sites generate short-notice, high-intensity work orders requiring rapid crew mobilisation. Expect compressed timelines and premium billing opportunities during activation periods.

Working Interest

Industry

An ownership stake in an oil and gas lease that obligates the holder to pay a share of exploration and production costs. For subcontractors, knowing who holds working interest helps identify who is ultimately responsible for approving work orders and invoices. Operators typically hold majority working interest and are your primary point of contract.

Spud Date

Industry

The date when drilling begins on a new well. Marks the start of drilling operations.

Secondary Stress

Industry

Indirect mechanical stress that develops in structures or piping due to thermal expansion, settlement, or equipment movement. Unlike primary stress, it isn't caused by direct applied loads. Subcontractors must account for it during installation and inspection to avoid material fatigue and warranty disputes.

Brine Development

Industry

The process of producing and managing saltwater solutions used in well completion, workover, and drilling operations. Subcontractors may be engaged for fluid handling, storage, transport, or disposal services. Scope can vary widely, so confirm fluid specifications and disposal requirements before mobilising.

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