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IndustryGlossary Term

Gathering System

A network of pipelines, compressors, and facilities that collect hydrocarbons from wellheads and move them to processing points. Subcontractors frequently support construction, inspection, and maintenance work across these systems. Scopes can span remote multi-well pads, requiring strong logistics and crew coordination.

Related Terms

Scoping Period

Industry

A defined window where the prime contractor or operator outlines project requirements before awarding contracts. Subcontractors use this time to assess fit, prepare bids, and flag resource or equipment needs. Missing this window often means missing the contract opportunity entirely.

Fixed Equipment

Industry

Stationary assets such as pressure vessels, heat exchangers, and storage tanks that require scheduled inspection, maintenance, or repair. Subcontractors are often mobilised specifically to service fixed equipment during turnarounds or planned shutdowns. Scope is typically defined by inspection reports and regulatory requirements.

Farm-Out

Industry

A farm-out occurs when an operator transfers part of its working interest in a well or lease to another company. For subcontractors, this can mean a change in who issues your work orders, purchase orders, or payment approvals mid-project. Always confirm the new operator's billing procedures and verify your contract remains valid under the new arrangement.

Megafab

Industry

A large-scale modular fabrication project where major facility components are built offsite and shipped for final assembly. For subcontractors, megafabs mean long-duration scopes, high crew volumes, and complex multi-trade coordination. Scheduling and mobilisation demands are typically intense.

Marine Construction

Industry

Offshore and nearshore infrastructure work including platform installation, subsea pipelines, and dock or jetty builds. Subcontractors often face strict vessel access requirements and marine safety certifications. Mobilisation costs and weather delays are major contract risk factors.

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.

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