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Oil & gas

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

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threshold velocity

Oil & gas; Oilfield

In a spinner flowmeter, the theoretical minimum fluid velocity required to initiate spinner rotation, assuming the spinner response is linear. The actual fluid velocity required ...

defoaming plates

Oil & gas; Oilfield

In a separator, a series of inclined parallel plates or tubes to promote coalescence, or merging, of the foam bubbles liberated from the liquid.

tapered cutoff

Oil & gas; Oilfield

In a nuclear magnetic resonance measurement, the use of a gradual rather than a sharp cutoff to distinguish between bound water and free water. A sharp cutoff at, for example T 2 ...

empirical

Oil & gas; Oilfield

Pertaining to analysis that includes equations or formulae that were derived purely from data analysis and were not derived from a theoretical basis. The majority of equations ...

theoretical

Oil & gas; Oilfield

Pertaining to analysis based on equations or formulae derived from a theoretical basis in science. The majority of equations used in reservoir characterization and reservoir ...

lacustrine

Oil & gas; Oilfield

Pertaining to an environment of deposition in lakes, or an area having lakes. Because deposition of sediment in lakes can occur slowly and in relatively calm conditions, ...

fluvial

Oil & gas; Oilfield

Pertaining to an environment of deposition by a river or running water. Fluvial deposits tend to be well sorted, especially in comparison with alluvial deposits, because of the ...