TERMIUM Plus®

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GYROSCOPIC SURVEYING INSTRUMENT [1 record]

Record 1 2000-03-15

English

Subject field(s)
  • Range Measurements (Telecommunications)
  • Oil Drilling
DEF

A device used to determine the direction and angle in which a deviated wellbore is drifting off vertical.

OBS

Unlike a magnetic surveying instrument, a gyroscopic instrument uses the gyroscopic principle to obtain direction and therefore is not affected by magnetic irregularities thay may be caused by casing or other ferrous metals.

French

Domaine(s)
  • Mesures à distance (Télécommunications)
  • Forage des puits de pétrole

Spanish

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