Belarusian National Technical University, Minsk, Belarus:

A. Yu. Kochergin, Post-Graduate Student
V. V. Ivashechkin, Dean at the Power Facilities Construction Faculty, Doctor of Engineering Sciences, fes@bntu.by
A. A. Levitsky, Student

The development of new methods for the regeneration and recovery of specific flow rate of water intake wells is an urgent task. Based on many years of the experience in well operation, it has been proved that all wells eventually need to be repaired. The main reason for such work is the chemical clogging of the filter and filter zone with different chemical compounds. The average stable operation period of new wells is 2–4 years. Better cleaning of filters and filter zones in water intake wells is achieved using the combination of hydraulic, impulse and vibration attacks with subsequent or concurrent chemical treatment. At this date, none of the integrated approaches enjoys wide application due to some disadvantages. At the Belarusian National Technical University, the pulse-and-chemical regeneration equipment has been designed for water intake wells. The technology involves electrolysis-induced explosion of a hydrogen–oxygen mixture at the well mouth on ground surface, feed of the mixture to a working chamber in the well filter, filling of a chemical reagent in the filter treatment zone and explosion of the reagent medium. The equipment has successfully passed laboratory and field tests.

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