METHOD FOR COMPLETING UNDERGROUND FORMATIONS AND SYSTEM FOR REALIZATION OF SAID METHOD Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: method includes detonation of first perforation cannon plant, positioned outside from casing pipe in well, as a result casing pipe and first underground formation are perforated. One or more stimulating and/or effecting substances is injected through casing pipe into first underground formation. Second perforation cannon plant is detonated, positioned outside casing pipe in well. As a result said casing string and second underground formation are perforated. One or more stimulating and/or effecting substances is injected through casing pipe into second underground formation. First underground formation is isolated from injection of flowing substances prior to injection of one or more stimulating and/or effecting substances into second underground formation. First and second perforation cannon plants are cemented in underground well prior to detonation. First underground formation is isolated from injection of flowing substances after injection of one or mote stimulating and/or effecting substances through casing pipe into second underground formation. Explosive substance is set on fire by detonation of at least one explosive charge by control line, placed in underground well outside of said casing pipe and connected to at least one explosive charge. Completion system has casing pipe, at least two perforation cannons, connected to outside of casing pipe. Each perforation cannon has at least one explosive charge, targeted in direction of casing pipe. Also provided is device for isolating a zone, positioned between at least two perforation cannons for selective overlapping of flow through casing pipe. Outside the casing pipe a plant for sending signals to perforation cannons is positioned.

EFFECT: higher efficiency.

2 cl, 40 dwg