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IndustryGlossary Term

Feed Gas

Raw, unprocessed natural gas delivered to a processing plant or facility as the primary input. For subcontractors, feed gas specifications determine the scope of compression, treating, and handling work on site. Changes in feed gas composition can trigger scope variations and affect your contract terms.

Related Terms

Umbilicals, Risers, and Flowlines

Industry

Collectively referred to as URF, these are the subsea infrastructure components that connect wellheads to production facilities — umbilicals carry control fluids and signals, risers bring production to surface, and flowlines move product along the seabed — subcontractors are commonly engaged for their installation, inspection, maintenance, and integrity management work. Understanding the distinctions between these systems helps field crews accurately scope work orders, apply correct certifications, and bill against the right line items in offshore or subsea contracts.

SSC (Sulfide Stress Cracking)

Industry

A form of metal cracking caused by hydrogen sulphide (H₂S) exposure under stress, common in sour gas environments. Subcontractors must use SSC-resistant materials and equipment rated for sour service on these sites. Non-compliant tools or components can fail catastrophically, creating serious liability and safety risks.

PPA (Power Purchase Agreement)

Industry

A long-term contract where a buyer agrees to purchase electricity from a generator at a fixed price. For subcontractors, PPAs on large sites can affect whether temporary or permanent power infrastructure is in scope. Understanding site power arrangements helps clarify mobilisation costs and equipment requirements.

Takeaway Infrastructure

Industry

Pipelines, rail lines, and processing facilities that move product away from a well site or project area. Limited takeaway capacity can delay or shut down operations, directly affecting subcontractor schedules and utilisation. Always confirm takeaway status before committing crews and equipment to a project.

Critical Path

Industry

The sequence of tasks that directly controls a project's completion date. Delays to any critical path activity push the whole project's finish date back. Subcontractors on critical path work face tighter scrutiny and stronger pressure to meet scheduled milestones.

Capital Maintenance Agreement

Industry

A long-term contract where a subcontractor provides scheduled upkeep and repairs on a client's major assets or facilities. Work scopes, pricing, and mobilisation terms are typically locked in advance. These agreements offer subcontractors predictable revenue but may limit flexibility to take on other work.

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