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DIAGRAMME ACOUSTIQUE [2 records]

Record 1 2010-12-17

English

Subject field(s)
  • Geophysics
  • Geological Prospecting
  • Scientific Measurements and Analyses
DEF

A record of the measurement of porosity done by comparing depth to the time it takes for a sonic impulse to travel through a given length of formation.

OBS

First used for seismic-velocity information, it is now used chiefly for estimating porosity and lithology by the empirical Wyllie time-average equation.

OBS

Usually measured in microseconds per foot.

OBS

sonic log; continuous-velocity log; velocity log; sonic well-log: terms used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • transit time log
  • sonic well log

French

Domaine(s)
  • Géophysique
  • Prospection géologique
  • Mesures et analyse (Sciences)
DEF

Enregistrement de la vitesse du son.

CONT

La diagraphie sonique a maintenant de multiples applications pour : trouver la porosité dans des sondages remplis de liquide; déterminer porosité, lithologie et argilosité en conjonction avec les diagraphies de densité et de neutron; fournir la vitesse des formations pour les interprétations sismiques [...]

OBS

Une diagraphie sonique est l’enregistrement du temps d’arrivée de l’onde acoustique à deux distances fixes d’un émetteur.

OBS

diagraphie acoustique; diagraphie de vitesse : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 1

Record 2 1998-07-08

English

Subject field(s)
  • Geophysics

French

Domaine(s)
  • Géophysique

Spanish

Save record 2

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