METHOD FOR DEVELOPMENT OF GAS-CONDENSATE DEPOSIT Russian patent published in 1997 - IPC

FIELD: gas production industry. SUBSTANCE: increased output of product from hydrocarbon reservoir is achieved as follows. After putting deposit in operation, hydrocarbon mixture is taken from productive reservoir at exhausting mode of operation up to pressure of maximal condensation of ethane-propane-butane fraction (C₂- C₄) of reservoir mixture. Then injection is effected of dry hydrocarbon gas for partial maintaining of reservoir pressure. At content of C₂- C₄ fraction being less than double content of stable condensate (C₅₊), created in reservoir prior to injecting hydrocarbon gas is fringe at volume of at least 15% of volume of pores in acting zone from hydrocarbon gas saturated with fraction C₂- C₄ at current reservoir pressures and temperature. EFFECT: high efficiency. 2 dwg