In the desert south of Amman, where the BRGM is monitoring deep drilling (down to 900 m) for water prospecting (Al Karak, Jordan, 2011). © BRGM - Alexis Gutierrez

OUAIP: computer-assisted pumping tests interpretation

OUAIP is an application designed to support interpretations and simulations of hydrogeological pumping tests.

These pumping tests are conducted to determine the hydraulic properties of aquifers. They are used by hydrogeologists to determine the flow rates of operational pumping wells and estimate the hydrodynamic parameters governing underground water flows.

Pumping tests interpretations are the basis for quantifying the specific parameters of a pumping well (step drawdown test) and the characteristic hydrodynamic parameters of an aquifer.

OUAIP, developed by the BRGM, is a freeware application designed to interpret and simulate hydrogeological pumping tests. It offers a range of analytical solutions (e.g. for porous, fissured, captive or semi-captive environments) and also handles disruptive effects (related to wells, limits, capacity, etc.).

The OUAIP home page

The OUAIP home page

OUAIP in simulation mode

OUAIP in simulation mode

Pumping trial interpretation mode

Pumping trial interpretation mode

Pumping test interpretation mode


  • Operating system: Windows (XP, 7)
  • Programming language: VB.NET
  • Languages: French, English (translations may be provided in other languages)

Download OUAIP from the dedicated website


OUAIP software


Direction D3E / Unité GDR

3, avenue Claude-Guillemin

45060 Orléans Cedex 02




More information about the OUAIP project

BRGM - 3 avenue Claude-Guillemin - BP 36009 45060 Orléans Cedex 2 - France Tel.: +33 (0)2 38 64 34 34