METHOD FOR APPLYING THERMOGAS-DYNAMIC ACTION TO BED AND SOLID FUEL CHARGE FOR ABOVE METHOD IMPLEMENTATION Russian patent published in 2005 - IPC

FIELD: oil production, particularly to stimulate bottomhole zone contaminated with paraffin, asphaltic resinous, salt, sludge and other deposits to increase oil output.

SUBSTANCE: method involves combusting solid fuel charges in well and creating successive excessive pressure pulses of gaseous combustion products. Solid fuel charges are combusted simultaneously with providing periodical stepped change in area and combustion temperature along with performing control of gas entering into well. This provides excessive pressure pulses which occur with frequency corresponding to time fractal processes of fatigue crack propagation in geological bed environment and creates pressure oscillations with 0.5-800 hertz frequency. The pressure oscillations act upon bed matrice material, as well as upon fluids and mud filling it.

EFFECT: increased efficiency due to increased coverage of elastic vibration application, reduced power inputs, creation of favorable conditions for nonreversible crack-propagation process and for providing purposeful triggering action.

24 cl, 4 dwg