DEVELOPMENT METHOD OF SUPER-VISCOUS OIL DEPOSIT Russian patent published in 2020 - IPC E21B43/24 E21B7/04 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the petroleum industry. Method of super-viscous oil deposit development includes construction of production wells with exposed parallel horizontal sections in productive formation and injection wells with profile located above production wells, preliminary heating by pumping of heat carrier in the form of saturated steam to all wells before creation of steam-gas chamber, transfer for pumping of heat carrier into injection wells and extraction of product of formation from production wells. At that parallel horizontal sections of production wells at construction are located at distance of 80–120 m. Production wells are divided into pairs. A horizontal profile of the corresponding one injection well is built above each pair so that the wellhead section is located above the horizontal section of one producing well from the pair, and the bottom-hole part – above the other one.

EFFECT: effective coverage of entire deposit with heating, approximately equal flow rate in all production wells with economy during construction due to drilling of two injection wells on two production wells, which also warms the inter-well space.

1 cl, 1 dwg