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Oil & gas

Terms concerning oil and gas as a fossil fuel and natural resource.

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Oil & gas > Oilfield

NODAL analysis

Oil & gas; Oilfield

An analytical tool used in forecasting the performance of the various elements comprising the completion and production system. NODAL* analysis is used to optimize the completion ...

wire-wrapped screen

Oil & gas; Oilfield

A type of screen used in sand control applications to support the gravel pack. The profiled wire is wrapped and welded in place on a perforated liner. Screen is available in a ...

openhole gravel pack

Oil & gas; Oilfield

A type of sand-control completion in which the gravel pack screen is packed off in an openhole section with no casing or liner to support the producing formation. The openhole ...

wireline-retrievable safety valve (WRSV)

Oil & gas; Oilfield

A type of safety valve in which the principal components can be run and retrieved by wireline or slickline. The valve assembly is landed in a ported nipple that is equipped with a ...

squeeze packer

Oil & gas; Oilfield

A type of retrievable packer used in squeeze-cementing operations. Key features include a bypass system and hold-down slips. The bypass system prevents surge and swab effects when ...

solution gas drive

Oil & gas; Oilfield

A type of reservoir-drive system in which the energy for the transport and production of reservoir fluids is derived from the gas dissolved in the fluid. As reservoir fluids enter ...

solution gasdrive

Oil & gas; Oilfield

A type of reservoir-drive mechanism in which the energy for the transport and production of reservoir fluids is provided by the gas dissolved in the liquid. As reservoir fluids ...