THERMAL SOURCE FOR THERMOGASDYNAMIC FRACTURING Russian patent published in 2019 - IPC E21B43/263 C09K8/70 

FIELD: technological processes.

SUBSTANCE: invention relates to the well bottom zone processing device due to the formation fracturing with solid fuels combustion gaseous products and can be used to increase the oil wells productivity. Proposed is the thermogasdynamic fracturing thermal source, which includes a housing with sealed ends, filled with the gas-generating during combustion composite material consisting of a mixture of granulated B grade ammonium nitrate, catalyst, energy additive, combustible binder, and triggered by the electrical coil igniter, where the said composite material contains potassium permanganate as a catalyst, carbon black of the P-803 grade as the energy additive, and epoxy compound as the combustible binder, comprising, in wt%: ED-20 brand epoxy resin – 76, EDOS brand plasticizer – 8, agidol of AF-2M brand – 16, in the following ratio of components of the composition, wt.%: granulated B grade ammonium nitrate 75.0–80.0, potassium permanganate 7.0–11.0, carbon black P-803 brand 4.0–6.0, epoxy compound 7.0–14.0 and introduced by its forming with layer-by-layer pressing directly into the thermal source body in the form of a solid monolithic material.

EFFECT: increase in the thermogasdynamic fracturing device energy performance and the manufacturing process simplification.

1 cl, 1 tbl, 2 dwg