| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: method involves creation of one or several pumping wells for pumping of gaseous fluid medium to tank. One or several pumping wells have many horizontal pumping branches. Pumping branches are located in the first area as to depth of tank. Method also involves creation of one or several production wells for oil extraction from tank. One or several production wells have many horizontal production branches. Production branches are located in the second area as to depth in the tank below the first area as to depth and arranged between pumping branches. Gaseous fluid medium, as a rule water vapour, is pumped via branches of injector during the first period of time. Then, air is pumped at least via one of pumping branches. Alternative versions of inventions are provided. ^ EFFECT: higher efficiency of method and operating reliability of system. ^ 16 cl, 4 dwg |
