installation de forage pétrolier

CONT: Les plates-formes pétrolières construites dans des chantiers spécialisés à terre, sont amenées en mer, soit sur barges, soit en remorque. Elles sont utilisées pour le forage, la production, le traitement, le stockage, le chargement et l'habitation.
OBS: Pluriel : des plateformes, des plates-formes.

CONT: An oil rig is a contraption which makes a hole in the ground to allow one to retrieve profitable quantities of oil or gas. It may be as simple as a hammer and a basket lowered on a cable (a ""cable tool"", still used ... in some parts of West Virginia), but since 1900 a ""rig"" refers to a rotary drilling rig, wherein a bit is screwed onto the bottom of some pipe, and the pipe is turned at the surface (""rotary"") and the whole ""drill string"" drills a hole into the ground.
OBS: rig: 1. An assembly of hole boring equipment used for drilling for oil or gas. The principal components of a rig ... comprise a derrick, the drawworks, with its drilling line, crown and travelling blocks, and a drilling fluid circulation system, including standpipe, flexible hose, mud tanks and pumps. ... 2. A self-contained unit equipped with hole boring equipment and used for drilling for oil or gas offshore.