The Government of Canada’s terminology and linguistic data bank.


Record 1 2015-03-24


Subject field(s)
  • Oil Drilling
  • Equipment (Oil and Natural Gas Extraction)
  • Petroleum Technology - Equipment

The first string of casing to be set in a well.


A short string of casing installed inside the conductor pipe in a well, and forming the base for attachment of well-head equipment. It is cemented in place just like any other casing, and derives its name from the fact that the top protrudes above the surface of the borehole.


  • Forage des puits de pétrole
  • Outillage (Extraction du pétrole et du gaz)
  • Appareillage (Technologie pétrolière)

Dans la plupart des cas, les sondages pétroliers comportent deux ou trois phases de forage qui permettent de mettre en place : une colonne de surface destinée à retenir les terrains de surface peu consolidés; d'une longueur comprise entre 100 et 1000 m, cette colonne sert en outre de support à la tête de puits; une colonne technique [...] [et] une colonne de production [...]


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