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IndustryGlossary Term

Bore Path

The planned underground route a drill bit follows during horizontal directional drilling (HDD). Subcontractors use bore path data to plan equipment placement, crew positioning, and utility clearances. Deviations from the bore path can trigger rework costs and schedule delays.

Related Terms

Nameplate Capacity

Industry

The maximum rated output or throughput of a piece of equipment as specified by the manufacturer. Subcontractors use this figure to scope work, size crews, and plan equipment deployment. Actual field performance often runs below nameplate due to age, conditions, or operational limits.

Vertical Mast Lift

Industry

A type of aerial work platform that raises personnel or materials straight up on a single mast column. Commonly used in confined or tight job sites where boom lifts cannot manoeuvre. Subcontractors must verify operator certifications and load ratings before mobilising.

Wall Thickness Assessment

Industry

An inspection process that measures remaining material thickness in pipes, vessels, or structural components to detect corrosion or erosion. Subcontractors are often hired to perform these assessments using UT (Ultrasonic Testing) equipment. Results determine whether assets require repair, replacement, or continued monitoring.

Self-Build

Industry

A project where the owner acts as their own general contractor, hiring subcontractors directly rather than through a prime contractor. For field service companies, this often means faster access to work but requires closer coordination with the owner. Payment terms and scope changes are negotiated directly, so clear contracts are essential.

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.

Brownfield

Industry

An existing facility—such as a producing well, pipeline, or plant—being modified, upgraded, or maintained rather than built from scratch. For subcontractors, brownfield work often means tighter workspaces, live equipment hazards, and stricter site access requirements. Scopes can change quickly due to unforeseen conditions uncovered during work.

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