METHOD FOR MINING DEPOSITS OF BITUMINOUS OIL FROM HORIZONTAL WELL Russian patent published in 2018 - IPC E21B43/24 E21B7/04 E21B43/32 

FIELD: mining.

SUBSTANCE: invention relates to the field of mining and can be used for the development of hydrocarbon fluid pools, in particular, in the production of high-viscosity oil and natural bitumen with a high gas factor. Method for developing a deposit of bituminous oil from a horizontal well includes the exploration of a field to identify areas with gas caps, the construction of a horizontal well under the gas cap with the opening of the reservoir, drilling an evaluation well above a horizontal well with the opening of a gas cap, descent into a horizontal well of tubing pipe, cyclic feeding of water vapor along the tubing with the expectation of thermocapillary impregnation and selection of well production. Evaluation well is drilled with a horizontal end located at the bottom of the gas cap above the horizontal well. Before pumping the steam into the horizontal well, the filler is pumped into the horizontal end to fill the space of the gas cap above the horizontal well to the formation's roof.

EFFECT: exclusion of breakthrough of the coolant into gas caps, increase in the oil recovery factor, while reducing the cost of heating the reservoir.

1 cl, 1 dwg, 1 ex