METHOD OF SUPER-VISCOUS OIL FIELD DEVELOPMENT Russian patent published in 2018 - IPC E21B43/24 E21B7/04 E21B47/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry. Method for developing a super-viscous oil deposit includes constructing a horizontal production well above the water-oil contact or the bottom of the formation above which an injection well is built, drilling additional wellbores from the horizontal section of a well, the distance between the additional wellbores being determined taking into account the technological capabilities of drilling equipment for their wiring, equipping the horizontal section of the production well with a filter, pumping the coolant into both wells prior to heating the interwell space of a reservoir, injection of coolant into an injection well and withdrawal of products from a production well. Hydrodynamic studies are carried out, on the basis of which additional wellbores are drilled upwards sequentially in different directions relatively to the injection well from the production well, to exclude the breakthrough of steam from the injection well, while the bottoms of additional wellbores are located above the producing well by at least 2 m.

EFFECT: higher efficiency due to increase in the area of coverage of a super-viscous oil deposit.

1 cl, 2 dwg, 1 ex