The primary, large-diameter pipe forming the backbone of a transmission or distribution pipeline system. Subcontractors are typically hired for mainline installation, coating, welding, or hydrotesting scopes. Work on mainline pipe often carries strict inspection and quality requirements.
Mainline Pipe
Related Terms
Earn-In Agreement
IndustryA deal where a subcontractor gains equity or a stake in a project by completing defined work or spending milestones. Common in junior oil and gas ventures where cash is tight. Your services effectively buy you into the asset rather than just earning a fee.
Cleanout
IndustryA service job focused on removing debris, scale, or obstructions from a wellbore, tank, or pipeline. Subcontractors are often mobilised on short notice to perform cleanouts between production phases. Accurate job scoping is critical, as unforeseen material volumes can affect your quoted price.
Completion Crews
IndustrySpecialised teams mobilised after drilling to prepare a well for production. For subcontractors, they represent a distinct scope of work with separate contracts, timelines, and crew requirements. Demand is tied directly to operator completion schedules, affecting short-notice mobilisation and billing cycles.
Tank Battery
IndustryA group of storage tanks at a well site that collect and separate oil, gas, and water from production. Subcontractors are frequently mobilised here for gauging, maintenance, and fluid handling work. It is a common recurring service location on producing leases.
Master Service Agreement (MSA)
IndustryA 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.
Bakken Play
IndustryA major tight-oil producing region spanning North Dakota, Montana, and southern Saskatchewan and Manitoba. Subcontractors working here should expect high-volume horizontal drilling and multi-stage fracturing scopes. Seasonal road bans and remote logistics significantly impact crew mobilisation and equipment scheduling.
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