METHOD FOR RESERVOIR PENETRATION AND TREATMENT Russian patent published in 2007 - IPC E21B43/24 E21B43/117 

FIELD: oil production, particularly enhanced recovery methods for obtaining hydrocarbons.

SUBSTANCE: method involves installing hollow and gas-generation solid-fuel charge in casing pipe; initiating the charge; creating perforation channel in casing pipe and surrounding productive reservoir with the use of hollow charge; moving gas generated by solid-fuel member combustion in the channel. Reservoir penetration and treatment are accompanied by vibrowave action and hydrochloric acid treatment resulted from vibratory fuel member combustion. The hydrochloric acid is generated by reaction between hydrogen chloride and water in fuel combustion products. Method is carried out with the use of device connected to logging cable and lowered in well. Device comprises hollow-carrier jet-type gun with perforation head linked to cable head, sealed side orifices or with weakened body areas, hollow charges and head. As each hollow charge is brought into action plasma jet stream is created. The jet stream passes through side orifices or burns through weakened body areas to break its integrity. Device additionally has one or more sealed air chambers having atmospheric pressure and arranged in different perforator zones. Each chamber is provided with non-detonating highly-strong cylindrical channel solid-fuel member having channel length/diameter ratio of (6-28):1. The member is formed of heat-resistant gas-generation composition with predetermined component ratio.

EFFECT: increased well yield, productive reservoir treatment due to simplified structure and assemblage thereof, improved response and functional efficiency.