Reconstruction of artesian wells

The newly developed technologies enable the reconstructionof a deteriorated or poorly functioning artesian wellwhile avoiding to move its location.Old wells often become irreversibly inefficient due to corrosion of the piping and / or filters, or for the structural failure of the insulation and cementing of the well pipe's external cavity.


Being able to reconstruct the well in the same position restoring its original efficiency, often saves money compared to building a new one, if we add up the costs of moving all the plant, the permanent plugging of the old well and, above all, the costs, difficulties and uncertainties involved in the process of obtaining permits for new drilling.

 

Techniques for the reconstruction of artesian wells

The techniques we can use are:

• * Well reconstruction with complete removal of the piping and the drained or cemented cavity

• External coring and extraction of the piping

 

* Patent No. 10425119.4 registered on 14.04.2010 by Acque Ingegneria Srl and Landi of Stefano Chiarugi and Co. Sas.

 

The first technique involves milling an external crown of the pipe with a diameter of about 1000 mm in order to recover materials placed between the old bore hole and the pipe itself (gravel with drainage function, cementing and clay filling).At the end of drilling the old pipe can be easily removed and replaced with a new pipe.

 

This procedure does not require any necessary authorisation and costs less than other reconstruction techniques of artesian wells.

 

The second technique, which requires outer core drilling and extraction of the pipe, consists in drilling a new well in the same spot where the old one was located.All filling materials are conveyed into a tank positioned near the coring equipment leaving the old pipe free to be extracted and replaced with a new one.

This is done when it is not possible to deepen or widen the existing well due to insufficient pipe diameter.

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