METHOD FOR CHEMICAL PROCESSING OF OIL AND GAS WELLS AND DEVICE FOR REALIZATION OF METHOD Russian patent published in 2006 - IPC E21B43/27 E21B43/263 

FIELD: oil and gas industry, possible use for chemical extraction of selected well interval, including bottomhole zone of productive formation of well.

SUBSTANCE: in accordance to invention, dry chemical reagent and high-explosive charge are delivered to interval being processed. They are positioned in hermetic body made with possible protection of chemical reagent from well pressure and temperature. Explosion of high-explosive charge is initiated. Body is destroyed by explosion of high-explosive charge. Chemical reagent is evenly distributed in well interval being processed. Device contains body filled with dry chemical reagent, logging cable for lowering device into well and high-explosive charge. Body is made of silicate material with possible protection of chemical reagent from well pressure and temperature and immediate destruction from effect of high-explosive charge.

EFFECT: increased well processing efficiency due to point delivery of dry chemical reagent of high concentration to appropriate well interval and its even distribution.

2 cl, 3 dwg