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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

rich gas

Oil & gas; Oilfield

Natural gas containing heavier hydrocarbons than a lean gas. Its liquid content adds important economic value to developments containing this type of fluid.

casing reciprocation

Oil & gas; Oilfield

Movement applied to the casing string during the cementing operation to help in removal of drilling fluid and efficient placement of the cement slurry.

reservoir-drive mechanisms

Oil & gas; Oilfield

Natural forces in the reservoir that displace hydrocarbons out of the reservoir into the wellbore and up to surface. Reservoir-drive mechanisms include gasdrive (gas cap or ...

indicator models

Oil & gas; Oilfield

Models of reservoirs built using indicator (nonparametric) methods.

measurement after drilling

Oil & gas; Oilfield

Measurements made by measurements-while-drilling (MWD) tools subsequent to the initial bit run. MWD logs are recorded while drilling the well. However, these tools can also record ...

downhole sensors

Oil & gas; Oilfield

Mechanical or electronic devices for measuring various properties in the well such as pressure, fluid flow rate from each branch of a multilateral well, temperature, vibration, ...

iterative methods

Oil & gas; Oilfield

Mathematical techniques that require an algorithm or equation to be repeated until a condition is met. These methods usually require the convergence of a result to a value. ...