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SURWELL CLINOGRAPH [1 record]

Record 1 2015-04-23

English

Subject field(s)
  • Boring and Drilling (Mines)
  • Geological Research and Exploration
  • Economic Geology
DEF

Well-surveying device which determines the departure of the borehole from vertical. Uses a gyroscope and spherical level with a photographic record made on 16-millimeter moving-picture film which includes a photograph of a small watch by which the depth is determined from correlation with a synchronized depth-time record made at the surface.

French

Domaine(s)
  • Sondage et forage miniers
  • Recherches et prospections géologiques
  • Géologie économique
CONT

Enfin, le clinomètre Surwel, de la Compagnie Sperry Sun, analogue [au clinomètre optique Schlumberger], comporte un compas gyroscopique à la place de l'aiguille aimantée et un niveau à bulle comme clinomètre. Il comprend, en outre, un thermomètre. Les photos sont prises toutes les six à huit secondes sur un film de 16 mm. Le gyroscope donne un gros diamètre à l'appareil qui ne peut être descendu que dans des forages d'au moins 6 pouces (150 mm).

OBS

Pour mesurer l'inclinaison du forage par rapport à la verticale, on utilise des appareils appelés clinomètres.

Spanish

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