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Industry Glossary Term

Borrow Material

Soil, gravel, or fill excavated from one location and transported to another for grading or earthwork. Subcontractors may need to source, haul, and place borrow material as part of site prep scopes. Confirm who supplies and pays for it before signing your contract.

Related Terms

Co2 Pipeline

Industry

A pressurised pipeline system that transports carbon dioxide, typically for carbon capture and storage (CCS) projects or enhanced oil recovery (EOR). Subcontractors may be engaged for construction, inspection, or maintenance under strict pressure and corrosion control requirements. Specialised welding certifications and material handling protocols are commonly required for this work.

Pad Construction

Industry

The process of building a level gravel or compacted surface to support drilling rigs, equipment, and site infrastructure. Subcontractors are often mobilised early to complete pad work before main drilling operations begin. Delays in pad construction can push back entire project schedules and affect downstream crew mobilisation.

Closed-Loop Cooling

Industry

A system that recirculates coolant through equipment without discharging it to the environment. Subcontractors must maintain leak-free connections and monitor fluid levels during installation and servicing. Improper handling can trigger environmental compliance violations on site.

Single-Source Contractor

Industry

A company hired to deliver an entire scope of work, rather than splitting it among multiple subcontractors. For field service subs, this means one firm holds the prime contract and manages all trades underneath. Winning a single-source role improves cash flow and reduces competition, but increases liability exposure.

Utility Relocation

Industry

The process of moving existing underground or overhead utilities — such as gas lines, water mains, or electrical conduits — to accommodate new construction or pipeline work. Subcontractors are often hired specifically for this scope, which requires utility locates and coordination with municipal or utility owners. Delays in relocation can directly impact your crew's mobilisation schedule and project milestones.

Surface Alignment

Industry

The process of ensuring above-ground equipment, piping, or structural components are precisely positioned and levelled before commissioning. Subcontractors are often responsible for completing alignment checks as a hold point prior to handover. Poor alignment can trigger costly rework and delay final sign-off.

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