PROCESSING TECHNIQUE OF LAYER WELL BOTTOM ZONE Russian patent published in 2009 - IPC E21B43/18 E21B28/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil-refining industry, particularly to processing techniques of productive bottomhole formation zone with application of bottomhole generator of hydroimpulsive impact. Essence of the invention: method includes alternation of pulse processing of bottomhole formation zone and hydropercussion impact. Into well on the flow column- FC is downed mud pulser. By pumping into the FC of liquid-gas mixture it is implemented replacement by it downhole liquid for reduction of bottom-hole pressure lower the stratal and providing of depression mode. In these conditions it is implemented pulse processing of hole-bottom region. In a following stage into FC occasionally is fed by portions process liquid, by means of which through the mud pulser it is implemented hydropercussion impact to the hole-bottom region of stratum in depression conditions.

EFFECT: effectiveness increase of hole-bottom region of stratum processing by means of constant maintenance of required depression, and also simplification and reduction in price of processing.

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