A cost-effective device and methodology to compute aquifer transmissivity and piezometry from free-flowing artesian wells - Université de La Réunion Access content directly
Journal Articles Hydrogeology Journal Year : 2022

A cost-effective device and methodology to compute aquifer transmissivity and piezometry from free-flowing artesian wells

Patrick Lachassagne
Heru Hendrayana
  • Function : Author
  • PersonId : 1150860
Arif Fadillah
  • Function : Author
  • PersonId : 1150861
Hervé Jourde

Abstract

Artesian aquifers offer interesting opportunities for water supply by providing a low-vulnerability groundwater resource that is easily abstracted without any installation of pumps or power supply costs. However, hydraulic tests are challenging to perform, notably where the piezometric head is above ground level with free-flowing wells not equipped with valves and open for years. This paper describes a low-cost, easy to reproduce and adaptable device, the free-flowing artesian well device (FFAWD), which is mainly designed with a set of PVC tubes equipped with a pressure probe and a valve. This device is used to perform hydraulic tests on free-flowing artesian wells, to measure the piezometric head of the aquifer and to compute its transmissivity. The practical use of the FFAWD is described and a method is proposed to compute the piezometric head and the transmissivity of the aquifer from this data set (free-flowing well discharge and pressure increase measurements) with any adapted analytical solution, using the Houpeurt-Pouchan method. Artefacts such as post-production effects, surge effects, and the impact of a leaky well are identified to avoid any misinterpretation. The FFAWD was applied to the volcano-sedimentary artesian plain of Pasuruan (Indonesia). The advantages and limitations of using the device, along with the interpretation methodology, are also discussed.
Fichier principal
Vignette du fichier
Toulier et al., 2022.pdf (3.71 Mo) Télécharger le fichier
Origin Publication funded by an institution

Dates and versions

hal-03727533 , version 1 (19-07-2022)

Licence

Identifiers

Cite

Alix Toulier, Patrick Lachassagne, Heru Hendrayana, Arif Fadillah, Hervé Jourde. A cost-effective device and methodology to compute aquifer transmissivity and piezometry from free-flowing artesian wells. Hydrogeology Journal, 2022, ⟨10.1007/s10040-022-02505-5⟩. ⟨hal-03727533⟩
97 View
134 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More