TERMIUM Plus®

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

bumper sub [1 record]

Record 1 2010-12-01

English

Subject field(s)
  • Mining Equipment and Tools
  • Boring and Drilling (Mines)
  • Oil Drilling
DEF

A device used to loosen the tools when drilling is carried on without jars.

OBS

... similar to a jar, except that a bumper sub is sometimes employed in the normal drilling stem to compensate for vertical movement of the stem, especially in offshore drilling. A bumper sub also provides jarring action but to a lesser extent than a jar.

PHR

Fishing bumper sub.

French

Domaine(s)
  • Outillage et équipement (Exploitation minière)
  • Sondage et forage miniers
  • Forage des puits de pétrole
DEF

Sorte de tube pour dégager les outils calés dans le forage au câble et, en particulier, les coulisses.

Spanish

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