METHOD FOR DEVELOPMENT MASSIVE TYPE HIGH-VISCOUS OIL DEPOSIT Russian patent published in 2016 - IPC E21B43/24 E21B7/04 

FIELD: oil and gas industry.

SUBSTANCE: method for development of deposit of massive type high-viscosity oil includes extraction in the section of the deposit stages with similar oil-saturated thickness, drilling of pairs of opposite production and horizontal injection wells arranged in rows, herewith production wells are located below injection wells, pumping of heat carrier into injection wells and oil extraction from production wells. Moreover, horizontal injection wells are to be drilled at the bottom of odd-numbered stages. Production wells are drilled in even stages as inclined at descending trajectory, the “heel” part of each production well is located in upper part of even stages, and “toe” of each production well is located in the lower part of even stages under the “toe” part of each next injection well in a row.

EFFECT: higher efficiency of deposit development at reduced number of drilled wells on the deposit, reduced costs for development of deposit.

1 cl, 2 tbl, 8 dwg