Drilling

Drilling

Of or relating to the penetration of the Earth's surface in order to extract petroleum oil.

Contributors in Drilling

Drilling

A group of salts formed by neutralization of phosphorous or phosphoric acid with a base, such as NaOH or KOH. Orthophosphates are phosphoric acid (H 3 PO 4 ) salts, where 1, 2 or 3 of the hydrogen ...

amides

Oil & gas; Drilling

A group of organic chemicals with the general formula RCO - NH 2 formed from reactions of ammonia (NH 3 ) and a carboxylic acid, RCOO - H + . "R" groups range from hydrogen to various linear and ...

amines

Oil & gas; Drilling

A group of organic chemicals that are analogs of ammonia (NH 3 ), in which either one, two or three hydrogen atoms of ammonia are replaced by organic radicals. General formulas are: (1) primary ...

fluid-loss-control material

Oil & gas; Drilling

A group of mud additives specifically designed to lower the volume of filtrate that passes through a filter medium. Specific materials are available for all types of water- and oil-base mud systems ...

iron oxide

Oil & gas; Drilling

A group of minerals and inorganic compounds made up of iron that is in +2 (ferrous) and +3 (ferric) valence states and oxygen in the -2 valence state, such as ferrous oxide, FeO, and ferric oxide, Fe ...

asphaltic mud additive

Oil & gas; Drilling

A group of high-viscosity or solid hydrocarbons obtained from naturally occurring deposits or from the residue of petroleum refining, commonly used as additives for oil-base and water-base muds. ...

iron sulfide

Oil & gas; Drilling

A group of compounds containing iron in +2 (ferrous) and +3 (ferric) valence states and sulfur in -2 (sulfide) valence states. Examples are ferric sulfide (Fe 2 S 3 ), ferrous sulfide (FeS) and iron ...