An electronic device that controls motor speed by adjusting electrical frequency, commonly found on pumps, compressors, and fans at oil and gas facilities. Subcontractors working near VFDs must follow strict electrical isolation and lockout/tagout procedures. Technicians servicing VFDs typically require specialised training and may need additional site certifications.
VFD (Variable Frequency Drive)
Related Terms
Well Intervention
IndustryAny post-completion operation performed on a producing well to restore or improve output. Subcontractors are often mobilised for wireline, coiled tubing, or pump work during these campaigns. Scope can change quickly, so confirm work orders before committing crew and equipment.
GWD (Getting Work Done)
IndustryA safety and compliance management system used by some operators to pre-qualify and manage contractors working on their sites.
Brine Development
IndustryThe process of producing and managing saltwater solutions used in well completion, workover, and drilling operations. Subcontractors may be engaged for fluid handling, storage, transport, or disposal services. Scope can vary widely, so confirm fluid specifications and disposal requirements before mobilising.
Title 17 (doe Loan Programme)
IndustryA U.S. Department of Energy programme that provides federal loan guarantees for innovative energy projects. Large-scale recipients often fund construction and field work, creating subcontract opportunities. Understanding it helps field service companies identify stable, federally-backed project pipelines.
Medium Voltage Transformer
IndustryA device that steps electrical voltage up or down within the 1 kV to 35 kV range on industrial job sites. Subcontractors often work around these units when installing temporary power or connecting equipment. Strict lockout/tagout and electrical certification requirements apply near this equipment.
Cavern Infrastructure
IndustryUnderground storage facilities, typically salt caverns, used to store hydrocarbons like natural gas or crude oil. Subcontractors may be engaged for cavern construction, well drilling, piping, and surface facility work. Projects often involve specialised equipment and compressed timelines tied to storage demand cycles.
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