METHOD FOR DEVELOPMENT OF DEPOSITS OF NATURAL HIGH-VISCOSITY HYDROCARBON FLUIDS Russian patent published in 2016 - IPC E21B43/24 E21B43/243 

FIELD: mining.

SUBSTANCE: invention relates to mining. Method for extraction of natural high-viscosity hydrocarbon fluids with application of in-situ combustion includes construction of horizontal production well and injection vertical wells above it; the production horizontal well is made two-head with horizontal shaft in bottom part of the formation. On both sides of double-mouth horizontal production well, control vertical wells are built, which implemented below the roof of productive formation. All wells are equipped with facilities for recording and reading of temperature and pressure. Heat carrier is fed into injection wells, and adjacent to wells areas of productive formation are heated to temperature not lower than self-ignition temperature of product formation. After heating is completed, heat carrier supply to the formation is stopped, oxidiser is fed into injection wells, and in-situ combustion is initiated propagating along the formation; hydrocarbon fluids contained in the formation are heated up to their fluidity, and formed combustion products are extracted from production and control wells.

EFFECT: technical result is increased efficiency of displacement and production process of high-viscosity hydrocarbon fluids - energy carriers of deposits, expanded action of forcing agent, support of monitoring and control in-situ combustion and heating of rocks.

6 cl, 1 dwg