24consulting - Varisco Wellpoint

12NovNovember 12, 2021

Pavia Gas Pipeline

On behalf of a prominent international Oil&Gas company, Varisco Wellpoint developed the drainage works for the construction of a 54-inch gas pipeline in Lombardy. The presence of a very high water table required the use of WEL ECO high-flow rate machines and a wellpoint system parallel to the pipeline to ensure lowering of the groundwater 24 hours a day. Direct support on site and machine repairs were essential services to guarantee the success of the work.
The WEL ECO range is able to manage large quantities of air, while keeping the wellpoint system at vacuum. At the same time it ensures drainage to allow excavation operations thanks to the semi-open impeller, also suitable for pumping liquids containing suspended solids.

Technical specifications:
•Solid handling passage with diameter up to 76 mm
• Patented air separation system, designed and built to handle large quantities of water mixed with air.

High altitude dam maintenance

Maintenance operation of the basin drainage channel at 2000 metres.

Two self-priming motor pumps on a raft were used for the application. The machines and equipment were transported at height and, given the significant altitude, a crucial consulting activity was carried out to plan the work.

Mestre Bypass Road

A prominent consortium of companies commissioned the construction of the Mestre bypass road to be set up in 3 years. Varisco Wellpoint provided support in the construction of the wellpoint plant and dealt with high efficiency pumping systems (WEL TANK). The solution included wellpoint plants ranging from 100 to 300 m each with high efficiency and low energy impact electric pumps (4kw of power). The project was carried out within the required time frame thanks to the technologies implemented and support in the field.

The WEL TANK automatic vacuum assisted pump is suitable for applications with variable groundwater flow rate and level requirements. Equipped with an electric motor, it is extremely quiet, energy efficient as well as ideal for use in residential areas.

Technical specifications:
• variable flow rate up to 274 m3/h;
• maximum power absorbed 4 kW;
• maximum head up to 24m.