METHOD OF GAS-HYDRAULIC STIMULATION OF FORMATION Russian patent published in 2002 - IPC

FIELD: means for oil production. SUBSTANCE: method includes performance of deep perforation of all intervals of treated formation, assembly of bulky sectional charge with central channel. Equipment components are passed through said central channel. Charge is run into well and its sections are burnt. Charge sections are made of compositions ensuring their burning in water, water-oil and acid media with formation of gaseous combustion products, increase of pressure and temperature. Control of burning of charge sections is carried out in regime of real time in rapidly proceeding burning process. Regime of charge operation characteristics is recorded. Character of action on formation and response of bottom-hole zone to stimulation are judged by character of variation of charge operation characteristics. For assembly of charge, use is made of sectional rod. Rod is made of material allowing preservation of its integrity under mechanical and heat loads during lowering and lifting and burning of charge. Rod has a hollow channel passing inside it along central axis for accommodating of wire supplying the ignition unit with power and wire with heat-resistant insulation connecting logging cable with electronic unit for control and recording of characteristics of charge operation conditions. It is connected to rod lower end spaced from charge section at such distance that hot gaseous combustion products of charge do not affect it. To reduce load on rod and provision of formation stimulation, dissipator of gaseous flow is located between charge lower section and electronic unit. EFFECT: provision of formation fracturing for increasing reliability of hydrodynamic communication. 2 cl, 1 dwg