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Oil & gas

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

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Oil & gas > Drilling

hydrate

Oil & gas; Drilling

An unusual occurrence of hydrocarbon in which molecules of natural gas, typically methane, are trapped in ice molecules. More generally, hydrates are compounds in which gas ...

crooked hole

Oil & gas; Drilling

Antiquated term for a deviated wellbore, usually used to describe a well deviated accidentally during the drilling process.

shear strength

Oil & gas; Drilling

Another term for gel strength in a fluid. Shear strength opposes the movement of mud, whether by pumping or movement of pipe in a wellbore. Excessive shear strength can develop ...

mud oven

Oil & gas; Drilling

An oven into which mud-testing cells are placed. Ovens usually have a set of horizontal rollers inside and are also called roller ovens. Mud-aging cells are placed on the rollers. ...

blowout

Oil & gas; Drilling

An uncontrolled flow of reservoir fluids into the wellbore, and sometimes catastrophically to the surface. A blowout may consist of salt water, oil, gas or a mixture of these. ...

citric acid

Oil & gas; Drilling

An organic acid, properly called 2-Hydroxy-1,2,3-propanetricarboxylic acid, with formula C 6 H 8 O 7 . Citric acid is used to reduce the pH of drilling fluids and hence for ...

mousehole

Oil & gas; Drilling

An opening in the rig floor near the rotary table, but between the rotary table and the vee-door, that enables rapid connections while drilling. The mousehole is usually fitted ...