plate-forme de forage gazier

CONT: L'Office Canada-Nouvelle-Écosse des hydrocarbures extracôtiers [...] a permis à ExxonMobil de consentir à une firme américaine [...] un gros contrat de construction d'une plate-forme de forage gazier [...]
CONT: L'industrie côtière, une industrie primaire à la base, [...] englobe [aussi] la fabrication de plate-formes de forage pétrolier et gazier et la construction de navire hauturiers de ravitaillement [...]
OBS: Pluriel : des plateformes, des plates-formes.

CONT: Oil and gas platforms. Since 1981 Gleitbau Salzburg has left its mark on reinforced concrete platform construction projects around the world. ... The extreme conditions [in the North Sea projects in the 70s] forced them to create innovations which today are the foundation for geo-metrically complicated and immensely high building structures. ... The services include ... the heavy lifting technique assists in the raising of pre-cast concrete elements or fabricated steel platforms into both the drilling and utility shafts, onto monolithically cast support brackets.
CONT: After a significant gas leak on a gas platform it was found that drawings did not reflect the actual plant.