On-location support work performed at an active drill site, including safety watch, equipment operation, and logistics. Subcontractors are typically mobilised on short notice and paid on a day-rate basis. Scope can shift quickly, so clear change-order processes are essential.
Wellsite Services
Related Terms
Radial Conveyor
IndustryA belt conveyor mounted on a wheeled chassis that pivots in an arc to distribute bulk materials across a wide stockpile area. Subcontractors use them on aggregate, sand, and gravel sites to manage material placement without constant repositioning. They reduce manual labour and speed up site operations significantly.
Carbon Capture
IndustryThe process of collecting and storing CO2 emissions from industrial sites before they reach the atmosphere. For subcontractors, it means growing work opportunities in facility retrofits, pipeline installation, and compression equipment servicing. Familiarity with CCS (Carbon Capture and Storage) infrastructure is increasingly expected on energy transition projects.
Long-Span Structural Systems
IndustryStructural frameworks that cover large distances without intermediate supports, such as trusses, arches, or space frames. Subcontractors encounter these in industrial buildings, processing facilities, and modular plant construction. Work in these areas often requires specialised rigging, elevated access planning, and load-path awareness.
RNG (Renewable Natural Gas)
IndustryBiogas captured from landfills, agriculture, or wastewater and upgraded to pipeline-quality fuel. Subcontractors may encounter RNG projects as producers expand capture and processing infrastructure. Field work includes installation of compression, purification, and injection equipment.
Balance-Of-Plant
IndustryAll supporting systems and infrastructure outside the primary process equipment, such as electrical, piping, HVAC, and civil works. For subcontractors, BOP (Balance-of-Plant) scope often represents the bulk of awarded field labour. Knowing what falls under BOP helps avoid scope gaps and missed bid items.
Instrumentation Upgrades
IndustryReplacement or modernisation of sensors, transmitters, and control devices on existing facilities. For subcontractors, this work is often scoped as short-duration projects requiring certified instrumentation technicians. Tight commissioning deadlines and client-supplied materials are common on these jobs.
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