Home > Industry/Domain > Oil & gas

Oil & gas

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

11Categories 39167Terms

Add a new term

Contributors in Oil & gas

Oil & gas > Drilling

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%) ...

gel

Oil & gas; Drilling

The term used by drilling rig personnel to refer to bentonite clay.

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 ...