A monitoring technology that uses fibre-optic cables as continuous sensors along pipelines, wellbores, or structures. It detects temperature, strain, and acoustic changes across kilometres of cable in real time. Subcontractors may be hired to install, splice, or maintain these cable systems during construction or integrity projects.
Distributed Fibre-Optic Sensing
Related Terms
Primary Term
IndustryThe fixed initial period of a service contract during which either party is typically locked in. For subcontractors, it sets the guaranteed window to recover mobilisation costs and generate revenue. Work orders or rates often cannot be renegotiated until this period expires.
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.
Cavern Storage
IndustryUnderground storage facilities carved out of salt formations or rock, used to hold large volumes of natural gas, crude oil, or other hydrocarbons. Subcontractors handle construction, maintenance, inspection, and integrity testing at these sites, often needing confined-space and geotechnical certifications. Injection and withdrawal seasons create predictable maintenance windows, helping field service companies plan mobilisation.
Geothermal Brine
IndustryHighly mineralised, hot saltwater extracted from underground geothermal reservoirs during energy production. Subcontractors handling it must follow strict corrosion control and PPE protocols. Disposal and handling are heavily regulated due to its chemical content.
Field Ticket
IndustryA document created in the field that records work performed, equipment used, materials consumed, and time spent. Field tickets are the basis for invoicing and must typically be approved by the customer before payment.
Grid Hardening
IndustryUpgrades to electrical infrastructure that improve resilience against outages, extreme weather, and physical damage. For subcontractors, it drives demand for line work, equipment installation, and civil construction crews. Contracts often involve tight timelines and utility compliance requirements.
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