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Industry Glossary Term

Design-Build

A project delivery method where one contractor handles both engineering design and construction under a single contract. As a subcontractor, you may be brought in mid-scope with limited drawing sets, requiring flexibility. Scope creep risk is higher since designs are still evolving while field work begins.

Related Terms

Transmission Tie-in

Industry

A connection point where a new pipeline is joined to an existing high-pressure transmission system. Subcontractors typically handle welding, purging, and pressure testing during a planned outage window. Tie-in scopes often require strict scheduling coordination and certified welding procedures.

CCS (Carbon Capture and Storage)

Industry

A process that captures CO₂ emissions from industrial sources and injects them underground for permanent storage. For subcontractors, CCS projects create demand for pipeline welding, compression equipment installation, and wellsite services. Familiarity with emissions-related scopes can open access to a growing segment of energy infrastructure work.

Crown Land Sale

Industry

A government auction where energy companies bid on licences to explore or develop publicly owned land. Winning bids signal upcoming drilling and field activity in that area. Subcontractors watch these sales to anticipate new work and mobilise resources early.

Sequencing (construction)

Industry

The planned order in which construction tasks must be completed before the next trade can begin work. Subcontractors depend on accurate sequencing to schedule crews and avoid costly downtime. Delays in one phase can push back your mobilisation and affect your invoicing schedule.

EOR (Enhanced Oil Recovery)

Industry

A set of advanced extraction techniques—such as steam injection, chemical flooding, or CO2 injection—used to pull additional crude from mature or low-yield reservoirs, which drives demand for specialised field service crews, equipment operators, and maintenance contractors on long-term site assignments.

Drillship

Industry

A self-propelled vessel equipped with a drilling rig used for offshore exploration and production in deepwater locations, which subcontractors may be mobilised to for specialised services such as equipment maintenance, inspection, or crew support under strict offshore safety and logistical requirements.

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