THERMOGASCHEMICAL WELL STIMULATION METHOD WITH THE USE OF COILED TUBING Russian patent published in 2006 - IPC E21B43/263 

FIELD: oil production, particularly methods for stimulating production by forming crevices or fractures using explosives.

SUBSTANCE: method involves thermogaschemical and pressure reservoir treatment by combusting solid-fuel cylindrical charge in productive reservoir interval. The solid-fuel cylindrical charge is delivered into well via coiled tubing made as extreme line pipe with logging cable arranged inside the pipe. The coiled tubing follows well direction. The logging cable is connected with solid-fuel cylindrical charge initiation unit, which provides ignition and burning of solid-fuel channel charge under electric current. Above solid-fuel channel charge burning provides thermogaschemical, pressure and vibro-wave productive reservoir treatment. The charge is placed inside perforated or non-perforated shell formed of combustible or non-combustible material, for instance in metal tubing or in plastic pipe. The charge may be installed by means of jointing unit, which withstands high temperature, pressure and vibration caused by charge combustion.

EFFECT: increased reliability and increased oil and gas yield due to improved ignition conditions and additional vibration combustion regime creation.

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