Reverse drilling

Reversible drilling within the drainage network Gaj-Dubovac.

 GEOING GROUP carried out 15 self-pouring (drainage) wells and 15 piezometers for the purpose of reducing the level of groundwater within the drainage network Gaj-Dubovac. The works involved the production of exploratory boreholes with continuous core, average depths of about 20 m, mapping of the densified core, making granulometric analyzes of samples from water-bearing layers, and then installing piezometric constructions of Ø 2” of diameter.

In the immediate vicinity of the piezometer , using the reverse method drilling, was carried out of the well, cross-section Ø 820 mm and a built-in borehole constructions with a cross section of Ø 330 mm and piezometric construction in the filter latch of the cross-section Ø 2”. The wells were subjected to stage-by-stage tests for the pump with three depressions, the third reduction of which was performed with a capacity of 30 l/s.

Client: EPS- ĐERDAP

Realization period:May–August 2017.

Activities:Hydrogeology, Investigative Drilling