THERMAL GAS-GENERATOR FOR TREATING BOTTOM-HOLE ZONE OF BED IN OIL WELLS Russian patent published in 1999 - IPC

FIELD: oil production industry. SUBSTANCE: this can be used for increasing output of wells, also for hydraulic fracturing of beds, and for creating fissures in oil beds. Thermal gas-generator has combustible or non-combustible body, igniter, heating element. Unit of combustible components located in body incorporates following materials as combustibles: magnesium powder or aluminium powder in amount of 50.0-75.0 mass%, and in function of oxidizing agent - nitrates of alkaline or of alkali-earth metals in amount of 19.0-40.0 mass%, used as technological additives are resins or their solutions in technical oils in amount of 5.0-6.0 mass%. Unit of combustible components is ignited. Final oxidizing of combustibles takes place in well. Hot gases penetrate into rock mass. Application of aforesaid embodiment of thermal gas-generator improves efficiency and technological safety in treatment of bottom-hole zone. EFFECT: higher efficiency. 1 dwg