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Industry Glossary Term

Debottlenecking

The process of identifying and removing constraints that slow production or operations on a job site. For subcontractors, this often means short-term scopes to upgrade equipment, piping, or workflows. Debottlenecking projects can generate fast-mobilisation work but typically run on tight timelines.

Related Terms

Rig Utilization

Industry

The percentage of time a rig is actively working versus sitting idle. For subcontractors, high rig utilisation means steady billable hours and predictable revenue. Low utilisation signals contract gaps that strain cash flow and crew retention.

PAUT (Phased Array Ultrasonic Testing)

Industry

An advanced non-destructive testing method that uses multiple ultrasonic beams to inspect welds, pipelines, and structural components for defects. It produces detailed cross-sectional images without cutting or damaging the material. Subcontractors offering PAUT services typically require certified Level II or III technicians and specialised portable equipment.

First Gas

Industry

The milestone when a gas facility produces and delivers its first commercial volumes. For subcontractors, it signals the end of construction-phase work and the shift to operations-phase contracts. Billing terms, crew rotations, and scope of work often change significantly at this point.

Trenchless

Industry

A method of installing or repairing underground pipelines and conduits without open excavation. Techniques include horizontal directional drilling (HDD) and pipe bursting. Subcontractors working trenchless scopes need specialised equipment and certified operators.

Sealed Bid

Industry

A confidential tender submission where subcontractors submit pricing without knowing competitors' rates. All bids are opened simultaneously by the hiring company. This process is common in public sector and large operator contracts across oil and gas and construction.

Primary Term

Industry

The fixed initial period of a service contract during which either party is typically locked in. For subcontractors, it sets the guaranteed window to recover mobilisation costs and generate revenue. Work orders or rates often cannot be renegotiated until this period expires.

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