Oilfield Terminology & Definitions.
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Equipment, Facilities & Infrastructure

Equipment, facilities, and infrastructure encompass the machinery, processing plants, pipelines, and support structures that enable oil extraction, transport, and refining. Understanding these components reveals how the industry maintains safety, efficiency, and production continuity.

  • Pipeline End Manifold (PLEM)
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    A Pipeline End Manifold (PLEM) is a subsea or above-ground structure that serves as the termination point for a pipeline and provides a connection interface…

  • Rod Pump (Pumping Unit)
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    A rod pump, often referred to as a pumping unit, is a positive displacement artificial lift system widely used in the oil and gas industry…

  • Semi-submersible Rig
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    A semi-submersible rig is a mobile offshore drilling unit (MODU) that floats on the water surface but is partially submerged to provide exceptional stability in…

  • Separator
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    A separator in the oil and gas industry is a pressure vessel used to divide a wellstream into its main components: gas, oil, water, and…

  • Shale Shaker
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    A shale shaker is the primary and most critical piece of solids control equipment used in drilling operations to separate drill cuttings from the drilling…

  • Storage Tank
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    A storage tank in the petroleum industry is a large, stationary containment vessel designed to safely hold crude oil, refined products, intermediate feedstocks, or other…

  • Subsea Manifold
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    A subsea manifold is a critical piece of infrastructure installed on the seafloor to collect, distribute, and control the flow of hydrocarbons (oil, gas, and…

  • Workover Rig
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    A Workover Rig is a specialized, mobile or skid-mounted equipment package used to perform remedial operations on an existing oil or gas well after its…