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

Cathodic protection

Oil & gas; Oilfield

A technique used to minimise the rate of corrosion of a structure. Cathodic protection does not eliminate corrosion, it transfers corrosion from the structure under protection to a known location ...

A technique used to fire individual perforating guns when multiple guns have been run together in a single trip into the well. Selective firing is used to improve operational efficiency when several ...

Hesitation squeeze

Oil & gas; Oilfield

A technique used in squeeze cementing whereby a portion of the slurry is pumped, then pumping stops to expose the slurry to differential pressure against the zone of interest in stages over a period ...

Bias weld

Oil & gas; Oilfield

A technique used in the assembly of coiled tubing strings at the manufacturing plant. Prior to being formed, the string is assembled from flat steel strips joined by a bias weld that is angled across ...

Calcium carbonate plug

Oil & gas; Oilfield

A temporary plug formulated with graded granules or flakes of calcium carbonate that are generally circulated into place as a slurry and allowed to settle out. Calcium carbonate plugs commonly are ...

Petroleum systems modelling

Oil & gas; Oilfield

A technique used to represent the history of a sedimentary basin, including the processes and components necessary to form petroleum: a petroleum source rock, a reservoir, a trapping mechanism, a ...

Temperature survey

Oil & gas; Oilfield

A temperature data set taken at various depths in the wellbore. Temperature surveys are used to determine the top of cement behind the casing, fluid contacts and water influx. It is also useful to ...