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Industry Glossary Term

Energy Storage

Systems that capture and hold power (batteries, flywheels, capacitors) for later use on remote or off-grid job sites. Subcontractors use them to reduce generator runtime and fuel costs. They are increasingly specified by clients in ESG-driven scopes.

Related Terms

Injection Well

Industry

A well used to pump fluids — such as water, CO2, or chemicals — into a subsurface formation for disposal or enhanced recovery. Subcontractors are commonly hired for drilling, wellbore servicing, and chemical injection work on these sites. Scope can include pump maintenance, pressure testing, and regulatory compliance support.

BOEPD (Barrels of Oil Equivalent Per Day)

Industry

A standardised measure combining oil, gas, and NGL output into a single daily production figure. Operators use it to size contracts and scope field service requirements. Higher BOEPD targets typically mean more crews, equipment, and sustained subcontractor workload.

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.

Deferred Maintenance

Industry

Upkeep or repair work that has been postponed by an asset owner due to budget constraints or scheduling conflicts. For subcontractors, deferred maintenance often triggers urgent, high-volume scopes when work is finally released. Expect compressed timelines, ageing equipment, and increased safety hazards on these jobs.

Steam Circulation

Industry

A process where steam is pumped through wellbore tubing to heat and mobilise heavy oil or bitumen. Subcontractors are often engaged for equipment operation, line connections, and monitoring during circulation cycles. Scope can expand quickly, so confirm change-order terms before mobilising.

AISI (American Iron and Steel Institute)

Industry

A standards body that classifies steel grades used in oilfield and construction equipment. Subcontractors reference AISI codes when sourcing pipe, fittings, or structural steel to meet spec requirements. Knowing these grades helps avoid costly material rejections on site.

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