SHAPED-CHARGE IMPLOSIVE MECHANISM Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: this relates to devices which act upon buttonhole zone of oil, gas, geothermal and other wells for quality cleaning of well-adjacent zone of producing reservoir from technological aftereffects and creating effective fissures in it. Device has hollow hermetic body with implosive valve and covering member. They together come to form implosive chamber inside body. Device is also provided with pipe union having radial openings, additional covering member and end adapters. Pipe union with radial openings is made in the form of substitute member which is located in middle of implosive chamber. Implosive chamber is made up of two plungers which close both ends of substitute. Plungers are equally distant from radial openings of substitute and are connected to each other by shear member. Main and additional covering members close opposite ends of implosive chamber. Covering members are installed in end adapters. EFFECT: high efficiency. 4 cl, 6 dwg