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.
Rod Spec
Related Terms
Q&T (Quench and Tempering)
IndustryA two-stage heat treatment process that hardens steel pipe and structural components used in oil and gas and construction applications. The steel is rapidly cooled (quenched), then reheated (tempered) to improve toughness and reduce brittleness. Subcontractors working with Q&T-rated steel must follow strict welding procedures, as improper heat input can compromise the material's mechanical properties.
Pad Drilling
IndustryA method where multiple wells are drilled from a single surface location, or pad. For subcontractors, this means sustained, back-to-back work cycles with minimal rig-up and tear-down time. Efficient mobilisation and crew scheduling are critical to maintaining productivity across the pad.
Vacuum Excavation (vac-Ex)
IndustryA non-destructive digging method that uses high-pressure water or air to loosen soil, then suctions it into a debris tank. Subcontractors use it for safe excavation near buried utilities, pipelines, and cables. It is commonly required on oil and gas sites where mechanical digging poses strike risks.
Directional Drilling
IndustryA drilling technique used to steer a wellbore along a non-vertical path to reach a target zone. Subcontractors supporting these operations often require specialised tooling, MWD (Measurement While Drilling) equipment, and certified directional hands. Scopes can shift quickly, so flexible crew and equipment mobilisation is essential.
Cavern Storage
IndustryUnderground storage facilities carved out of salt formations or rock, used to hold large volumes of natural gas, crude oil, or other hydrocarbons. Subcontractors handle construction, maintenance, inspection, and integrity testing at these sites, often needing confined-space and geotechnical certifications. Injection and withdrawal seasons create predictable maintenance windows, helping field service companies plan mobilisation.
Associated Gas
IndustryNatural gas that occurs alongside crude oil in a reservoir and is produced simultaneously. For subcontractors, it affects site safety protocols, equipment specs, and flaring compliance requirements. Expect stricter gas detection and ventilation standards on leases where associated gas is present.
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