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Oil & gas
Terms concerning oil and gas as a fossil fuel and natural resource.
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casing collar
Oil & gas; Drilling
The threaded collar used to connect two joints of casing. The resulting connection must provide adequate mechanical strength to enable the casing string to be run and cemented in ...
eccentricity
Oil & gas; Drilling
The term used to describe how off-center a pipe is within another pipe or the openhole. It is usually expressed as a percentage. A pipe would be considered to be fully (100%) ...
bottomhole static temperature
Oil & gas; Drilling
The temperature of the undisturbed formation at the final depth in a well. The formation cools during drilling and most of the cooling dissipates after about 24 hours of static ...
bottomhole circulating temperature
Oil & gas; Drilling
The temperature of the circulating fluid (air, mud, cement or water) at the bottom of the wellbore after several hours of circulation. This temperature is lower than the ...
cloud point
Oil & gas; Drilling
The temperature at which a solution of a surfactant or glycol starts to form micelles (molecular agglomerates), thus becoming cloudy. This behavior is characteristic of nonionic ...
well control
Oil & gas; Drilling
The technology focused on maintaining pressure on open formations (that is, exposed to the wellbore) to prevent or direct the flow of formation fluids into the wellbore. This ...
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- corrosion inhibition (0)
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- Drilling (9514)
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- Oil & gas instrumentation (856)
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