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IndustryGlossary Term

Refinery Utilization Rate

The percentage of a refinery's total processing capacity actively in use at a given time. Higher utilisation rates signal increased demand for maintenance, turnaround, and inspection crews. Subcontractors can use this metric to anticipate workload surges and mobilisation timelines.

Related Terms

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.

Ballast

Industry

Heavy material (water, sand, or concrete) added to vessels, structures, or equipment to improve stability and balance. In field operations, managing ballast affects load planning, marine logistics, and offshore platform work. Subcontractors on marine or offshore scopes must account for ballast systems in scheduling and safety planning.

Berth

Industry

A designated docking space where vessels load or offload equipment, materials, and crew. Subcontractors must coordinate mobilisation schedules around berth availability to avoid costly delays. Port congestion can directly impact your invoicing milestones and crew rotations.

Ductile Iron

Industry

A strong, flexible cast iron alloy used in pipes, fittings, and valves on oil and gas and construction sites. It resists cracking under pressure, making it common in water, gas, and slurry line installations. Subcontractors should confirm material specs before procurement, as ductile iron has specific handling and joining requirements.

Liquefaction Train

Industry

A complete processing system that cools natural gas into liquid LNG (Liquefied Natural Gas) for storage and transport. Each train is a major construction and maintenance scope, often requiring large, specialised subcontractor workforces. Shutdowns and turnarounds on these units are high-value contracts with strict schedule demands.

AGC (Associated General Contractors of America)

Industry

A U.S. trade association representing general contractors in construction. Subcontractors working with AGC members often encounter standardised contract templates and safety compliance expectations tied to membership. Knowing AGC standards helps subs align bids and prequalification documents with GC requirements.

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