METHOD INCREASING PRODUCTIVITY OF HYDROGEOLOGICAL WELLS AND GEAR FOR ITS IMPLEMENTATION Russian patent published in 1998 - IPC

FIELD: hydrogeology, running of artesian and hydrogeological wells of various assignment. SUBSTANCE: in correspondence with method action on zone close to filter of at least one water well is conducted by passing of heterpolar electric pulses without pauses between positive and negative pulses through zone close to filter of well. Relation of pulse durations is established constant and equal to 1. Value of pulse durations is consistently increased and decreased from t_imin to t_imax found from given relation with constant step Δt equal to 1.0-5.0 m/s after two pulses, one being positive and the other - negative, during period T_k of change of pulse duration from minimal value to maximal one and again to minimal one. Total action time should not exceed 30.0 h. Gear for implementation of method has voltage source connected by power cables to two working electrodes as minimum. Voltage source is provided with control and adjustment unit to measure and adjust parameters of output current. EFFECT: increased permeability of water stratum in zone close to filter of well and increased water inflow into filter of well as a consequence. 2 cl, 1 dwg