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Daily oil & gas and construction news for subcontractors

IndustryGlossary Term

Bore

A drilled or excavated hole through soil, rock, or existing structure. Subcontractors are often scoped to complete a specified number of bores per shift. Bore diameter and depth directly affect equipment selection and crew sizing.

Related Terms

Export Capacity

Industry

The maximum volume of oil, gas, or product a facility can move off-site through pipelines, tankers, or terminals. For subcontractors, export capacity limits often dictate project pace and crew scheduling. Delays in export infrastructure can stall work and affect invoice milestones.

Call-Out (call-Out Activity)

Industry

A single, unplanned service request dispatched to a subcontractor or field technician outside of scheduled work. Each call-out is typically logged as a discrete billable event. Subcontractors often charge a flat call-out fee plus time and materials.

TOFD (Time-of-flight Diffraction)

Industry

An ultrasonic weld inspection method used to detect and size internal flaws in pipelines and pressure vessels. Subcontractors performing NDT work must hold TOFD-specific certifications to qualify for this scope. It is widely accepted by regulators as an alternative to radiographic testing.

Quick Coupler

Industry

A mechanical fitting that connects hoses, pipes, or hydraulic lines without tools or threading. Common on wellsite and construction equipment, they allow fast swaps between attachments or fluid systems. Subcontractors should verify coupler compatibility before mobilising to avoid costly downtime.

Mobilization/Demobilization

Industry

The process of moving equipment and personnel to a job site (mobilization) and returning them afterward (demobilization). Often billed as separate line items.

Storage Injection

Industry

The process of pumping natural gas into underground storage facilities during periods of low demand. For subcontractors, it signals increased compression, pipeline, and maintenance work tied to seasonal injection cycles. Crews should expect elevated activity from spring through early fall.

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