METHOD OF VISCOUS OIL DEVELOPMENT, DEVICE FOR ITS IMPLEMENTATION AND BOTTOMHOLE GAS GENERATOR Russian patent published in 2015 - IPC E21B43/24 E21B36/00 

FIELD: oil and gas industry.

SUBSTANCE: method of development of viscous oil fields includes creation in the formation of the zone of formation oxidating and thermodynamic processes by insertion in the horizontal part of the casing in the injection well of the bottomhole gas generator, and by fuel component ignition in it: fuel with oxidant, and admixture to the combustion products of the pre-heated water. At that the fuel, oxidant and heated water are injected though several coiled tubings in the bottomhole gas generator. Water by the water pump is injected in the water heater installed upstream the coiled tubing. The fuel components are ignited in the bottomhole gas generator using the ignition plug, and the bottomhole gas generator is slowly moved using the synchronous operation of the coiled tubings along the entire horizontal part of the casing towards wellhead. Then the bottomhole gas generator is removed from the heating well. Tubing string with the well filters in the horizontal part of the casing is run in it, and production of the liquid phase, gas fractions and light evaporated oil products are produced, separated and cleaned.

EFFECT: increased process efficiency and safety assurance.

18 cl, 19 dwg, 2 tbl