A subcontractor hired to perform one specific, clearly defined scope of work on a project. They operate independently from other trades and are not responsible for coordinating adjacent scopes. This structure limits liability exposure but also restricts opportunities to capture additional work on site.
Single-Scope Contractor
Related Terms
Production Shut-in
IndustryA temporary halt to oil or gas production at a well or facility, ordered by the operator. For subcontractors, this often means suspended work orders and delayed revenue until operations resume. Standby rates and demobilisation terms in your contract become critical during a shut-in.
Oil Sands
IndustryDeposits of bitumen mixed with sand, clay, and water, primarily found in Alberta. Extraction and upgrading operations require large volumes of subcontracted trades, maintenance crews, and specialised equipment. Project cycles are long, but remote site conditions and extreme cold demand strong mobilisation planning.
Artificial Lift
IndustryA system used to boost production from oil wells that lack sufficient natural pressure to bring fluids to surface. Common methods include rod pumps, ESPs (Electric Submersible Pumps), and gas lift. Subcontractors are often mobilised to install, service, or troubleshoot these systems throughout a well's producing life.
Jackup
IndustryA mobile offshore drilling rig with retractable legs that jack down to the seabed, elevating the platform above water. Subcontractors mobilising to a jackup must account for offshore certification, marine logistics, and platform-specific access requirements.
Frac Sand Hauling
IndustryThe trucking of proppant (silica sand) from storage terminals to active frac sites. Subcontractors operate on tight dispatch schedules to maintain continuous sand supply during pumping operations. Contracts often include standby rates for wait time at the wellsite.
COR (Certificate of Recognition)
IndustryA voluntary safety certification program in Canada that recognizes employers who have developed health and safety management systems that meet established standards. Required by many operators in Alberta and Western Canada.
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