DEVICE FOR TREATMENT OF BOTTOM-HOLE FORMATION ZONE Russian patent published in 2002 - IPC

FIELD: operation of oil, gas, water and other wells; applicable in gas pulse treatment of bottom-hole formation zone. SUBSTANCE: installed in immiscible generator body low-pressure cavity are gamma radiation detector and continuity locator, both connected via logging cable to generator position detector, comparison unit and unit of generator operation control. Intermediate chamber is installed between body low- and high-pressure cavities. Intermediate chamber has hole in side wall for gas supply to bottom-hole zone and conical hole in its base to receive nose part of starting valve. Member for accumulation of gaseous medium is located in high-pressure cavity. There are members of working agent initiation and switching unit. Use of claimed device results in higher accuracy of location of immiscible generator in region of producing horizon, increased efficiency of bottom-hole formation zone treatment and device operation stability, reduced consumption of working agent. EFFECT: raised well productivity and increased rock permeability. 1 dwg