METHOD OF REDUCING OF CLOGGING OF PERFORATED APERTURES AND MAIN CRACKS OF POROUS MATRIX IN PRESSURE WELLS WITH SOLIDS OF IMPURITIES Russian patent published in 2008 - IPC E21B43/20 

FIELD: mining.

SUBSTANCE: method consists in lowering of acoustic converter of noise into well on flow columns into interval between upper and lower perforated apertures. Further at implementation the method process fluid is pumped into the well and it is moving through the perforated apertures into a reservoir; also sonic waves are generated into the well and sump by means of perforated apertures when process fluid flows through them. Sonic waves are converted into ultra sonic frequency with the acoustic converter. A standing sonic wave is created in a circular space between the cased column with perforated apertures and the acoustic noise converter. There is performed the process of coagulation of mechanical solids in the circular space between the perforated apertures and the acoustic noise converter with following sedimentation of solids into the sump.

EFFECT: efficient operation of pressure wells with high concentration of suspended solids in process fluid.

2 dwg