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Industry Glossary Term

2d/3d Seismic Survey

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.

Related Terms

ROV (Remotely Operated Vehicle)

Industry

An unmanned, tethered underwater robot used to inspect, survey, or perform work on subsea pipelines, wellheads, and structures — subcontractors providing ROV services typically require specialised operators and vessels, and should account for mobilisation costs and standby rates when bidding these scopes.

Data Mesh

Industry

A decentralised approach where different teams own and share their own operational data directly. For subcontractors, it means job site data—timesheets, inspection reports, equipment logs—flows more easily between your systems and the prime contractor's. Reduces bottlenecks caused by waiting on a single centralised IT team to manage data access.

GC (General Contractor)

Industry

The prime contractor hired by an owner to manage a project, responsible for awarding and overseeing subcontracts. As a sub, your contract, invoicing, and site access typically flow through the GC. They control your payment terms and schedule, making them your primary business relationship on site.

ERCIP (Energy Resilience and Conservation Investment Program)

Industry

A U.S. Department of Defense funding programme for energy resilience projects on military installations. Subcontractors often access this work through prime contractors on federally funded construction or energy retrofit scopes. Understanding ERCIP helps field service firms identify bid opportunities in government energy infrastructure.

Modular Construction

Industry

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.

Vacuum Excavation

Industry

A non-destructive digging method that uses high-pressure water or air to loosen soil, then suctions the debris into a holding tank. Commonly used for safe excavation around buried utilities, pipelines, and underground infrastructure. Subcontractors are often hired for this work during tie-ins, facility upgrades, or pre-dig utility locates.

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