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Industry Glossary Term

FID (Final Investment Decision)

The point when a project owner formally approves funding and commits to proceeding with a major project. For subcontractors, FID is the trigger that converts preliminary work into confirmed scopes and purchase orders. Mobilisation planning, crew hiring, and equipment sourcing typically begin after FID is announced.

Related Terms

Wireline Logging

Industry

A data-gathering service where specialised tools are lowered into a wellbore on a cable to measure formation properties. Subcontractors often provide the crew, equipment, and vehicles supporting these operations. Accurate job records are critical, as logging runs directly affect well completion decisions.

Instrumentation Upgrades

Industry

Replacement or modernisation of sensors, transmitters, and control devices on existing facilities. For subcontractors, this work is often scoped as short-duration projects requiring certified instrumentation technicians. Tight commissioning deadlines and client-supplied materials are common on these jobs.

Grid Interconnection Queue

Industry

A backlog of energy projects waiting for approval to connect to the electrical grid. For subcontractors, queue position determines project start dates and can cause significant mobilisation delays. Long wait times directly affect labour scheduling and equipment commitments.

Reamer

Industry

A downhole tool that enlarges or stabilises a borehole during drilling operations. Subcontractors supplying or operating reamers must ensure proper tool specifications match formation conditions. Rental and mobilisation costs are typically scoped into the drilling services contract.

Combined-Cycle

Industry

A power generation system that uses both gas and steam turbines to maximise efficiency. Subcontractors working these facilities must be prepared for complex, multi-system shutdowns and specialised maintenance scopes. Expect longer turnaround windows and stricter equipment handling requirements.

Compression Expansion

Industry

A growth phase where an operator scales up gas compression infrastructure, creating demand for additional field service crews and equipment. Subcontractors should anticipate increased work orders for installation, commissioning, and maintenance. Securing standing agreements before expansion begins helps lock in preferred vendor status.

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