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Industry Glossary Term

Rod Spec

A technical specification document outlining the dimensions, grade, and tolerances for sucker rods used in artificial lift systems. Subcontractors must match rod spec requirements exactly before mobilising equipment or labour. Non-compliance can result in rejected work and withheld payment.

Related Terms

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.

Downstream

Industry

Refers to the refining, processing, and distribution segment of the oil and gas industry. For subcontractors, downstream work typically involves maintenance and turnarounds at refineries or petrochemical plants. These sites often have stricter safety protocols and certification requirements than upstream operations.

Deep Foundation

Industry

A structural support system that transfers building loads to stable soil or rock far below the surface, typically using piles or caissons. Subcontractors are often mobilised for drilling, pile driving, or concrete work on these scopes. Expect specialised equipment requirements and strict geotechnical inspection protocols on site.

Material Takeoff

Industry

A detailed list of all materials, quantities, and specifications needed to complete a scope of work. Subcontractors use it to prepare accurate bids and avoid costly shortages or overruns in the field.

Leasehold

Industry

Land or mineral rights an operator has legally secured through a lease agreement with the landowner or Crown. Subcontractors typically work within leasehold boundaries, so access, permitting, and site rules are set by the operator holding the lease. Understanding leasehold limits helps crews avoid trespassing on adjacent unlicensed areas.

Production Drilling

Industry

Drilling performed on a proven reservoir to extract hydrocarbons commercially, as opposed to exploration work. For subcontractors, it typically means longer campaigns with more predictable scopes. Expect repetitive well programmes and stronger potential for extended service agreements.

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