FIELD: chemistry.
SUBSTANCE: surface-active composition, containing: a first surface-active subsystem containing a fluorinated PAD, a second PAD containing an organosilicon PAD, and optionally a solvent subsystem, where the composition is capable of foaming a fluid medium, which contains spectroscopically analysed crude oil and/or a condensate present in a producing formation. A drilling mud contains said surface-active composition. A completion fluid composition contains said surface-active composition. A hydraulic fracturing composition contains said surface-active composition. A formation stimulation composition contains said surface-active composition. A method of foaming a fluid medium containing oil and/or condensate involves analysing crude oil and/or condensate, preparing said surface-active composition, adding to well fluid and adding a foaming gas.
EFFECT: high stability of compositions over time and at high temperatures.
20 cl, 2 tbl, 1 dwg
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