EP 0778393 B1 20020925 - Method and apparatus for maintaining the performance of new water wells and for cleaning and regeneration of excisting water wells by means of ultrasound
Title (en)
Method and apparatus for maintaining the performance of new water wells and for cleaning and regeneration of excisting water wells by means of ultrasound
Title (de)
Verfahren und Vorrichtung zur Erhaltung der Leistungsfähigkeit neuer Brunnen sowie zur Reinigung und Regenerierung bestehender Brunnen mittels Ultraschall
Title (fr)
Procédé et dispositif pour la maintenance de la performance d'un puits à eau ainsi que pour le nettoyage et la régénération de puits existants par moyen d'ultrason
Publication
Application
Priority
DE 19547264 A 19951207
Abstract (en)
[origin: EP0778393A2] This novel procedure maintains the output of new wells, or cleans and regenerates existing ones. The filter is subjected to ultrasound radiated from a transducer. The water, now full of detached particles, is drawn out. The filter and the gravel section connected to it, are treated to achieve a degree of cleaning, which is measured from the water extracted. The filter assembly is cleaned section by section with the transducer stationary, in the absence of mechanical or hydromechanical effects. Also claimed is a device to carry out the process. This includes two height-adjustable packing units containing transducer and extraction pump (7) which are moved in the well. The pump is in the upper pack (5), connected by a line (8) to the instrument (9) making the measurements.
IPC 1-7
IPC 8 full level
E21B 37/08 (2006.01); E21B 43/00 (2006.01)
CPC (source: EP)
E21B 37/08 (2013.01); E21B 43/003 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0778393 A2 19970611; EP 0778393 A3 19971022; EP 0778393 B1 20020925; AT E224996 T1 20021015; DE 19547264 A1 19970612; DE 59609722 D1 20021031
DOCDB simple family (application)
EP 96250281 A 19961205; AT 96250281 T 19961205; DE 19547264 A 19951207; DE 59609722 T 19961205