TERMIUM Plus®

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SINGLE-WELL PULSE TECHNIQUE [1 record]

Record 1 2009-03-16

English

Subject field(s)
  • Hydrology and Hydrography
  • Geology
DEF

The introduction of a tracer into the aquifer through a well while the well is being recharged with sufficient pressure to eliminate transient effects.

OBS

The tracer pulse, of any reasonnable volume is displaced downward by a volume of water sufficient to push it out of the well bore into the aquifer. The pulse is subsequently pumped out from the same well after a delay time during which it drifts with a natural velocity in the direction of the local gradient of flow. The concentration or activity of the pumped water is monitored and recorded.

Key term(s)
  • single-well pulse technique

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géologie
DEF

Marquage de l'eau d'un puits par un traceur, suivi d'une injection d'eau, puis, après un certain temps, du prélèvement par pompage d'un volume d'eau donné.

OBS

La comparaison entre les concentrations en traceur de l'eau injectée et de l'eau pompée, moyennant diverses hypothèses simplificatrices, peut servir à l'évaluation de paramètres locaux de l'aquifère, notamment du coefficient de dispersion.

Spanish

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