Oilfield

Oilfield

Oilfield refers to a region with an abundance of oil wells extracting petroleum from below the ground.

Industry: Oil & gas

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Oilfield

Depleted zone

Oil & gas; Oilfield

An isolated section of reservoir in which the pressure has dropped below that of adjacent zones or the main body of the reservoir formation.

An isolation tool set in the casing or liner that enables treatments to be applied to a lower interval while providing isolation from the annulus above. Cement retainers are typically used in cement ...

Repeat section

Oil & gas; Oilfield

An interval of log that has been recorded for a second time. The repeat section is typically 200 ft (60 m) long. The purpose is to judge the repeatability of the measurement by recording it twice ...

Dynamometer

Oil & gas; Oilfield

An instrument used in sucker-rod pumping to record the variation between the polished rod load and the polished rod displacement.

Bayesian inference

Oil & gas; Oilfield

An inference or deduction made using Bayes' theorem. Bayesian inference also is used in performing stochastic analyses of geological scenarios or building stochastic models of geological ...

Array induction

Oil & gas; Oilfield

An induction tool or log that consists of several mutually balanced arrays whose signals are recorded separately and combined in software to produce the response desired. Typically, there is one ...

Completion skin

Oil & gas; Oilfield

An indicator used to determine the effect that key completion components have on the production efficiency of a well. If one or more of the well-completion components create a localised pressure ...