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Industry Glossary Term

Competitive Tender

A formal process where a client or prime contractor solicits bids from multiple subcontractors for a defined scope of work. Subcontractors submit priced proposals and are evaluated on cost, capability, and safety record. Winning a competitive tender typically requires balancing competitive pricing against maintaining viable margins.

Related Terms

Transmission Infrastructure

Industry

Large-scale pipelines, compressor stations, and related facilities that move oil, gas, or power across long distances. Subcontractors are frequently mobilised for construction, inspection, and maintenance work on these assets. Scopes can be extensive, requiring multi-trade crews and strict regulatory compliance.

NGL (Natural Gas Liquids)

Industry

Hydrocarbons extracted from natural gas, including propane, butane, and condensate. NGL facilities and pipelines generate steady subcontract work in processing, instrumentation, and maintenance. Understanding NGL handling requirements helps crews meet site-specific safety and equipment standards.

Fumigation (engine)

Industry

A method of injecting a secondary fuel, such as natural gas or propane, into a diesel engine's air intake to supplement combustion. It reduces fuel costs and emissions on long-running field equipment. Subcontractors should verify fumigation setups meet emissions compliance requirements in their operating jurisdiction.

Caustic Service

Industry

Work involving equipment or piping that handles highly alkaline chemicals, such as sodium hydroxide. Subcontractors must use compatible materials and certified personnel to avoid rapid corrosion and serious chemical burns. Specialised PPE and handling procedures are typically required by the client's safety plan.

Stress-Corrosion Cracking

Industry

A failure mode where metal components crack under the combined effect of tensile stress and corrosive environments. Subcontractors must inspect susceptible equipment — like pipelines, pressure vessels, and lifting gear — for early signs. Missed SCC (Stress-Corrosion Cracking) damage can trigger costly shutdowns, liability claims, or failed inspections.

Master Service Agreement (MSA)

Industry

A contract between an operator and a service company that establishes the general terms and conditions for all future work. Individual jobs are then executed under work orders or AFEs referencing the MSA.

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