FIELD: oil and gas production.
SUBSTANCE: invention, in particular, aims to increase efficiency of treating facially non-uniform formations as well as to recover hard-recoverable oil reserves. Reagent according to invention is based on bitumen-containing product and further contains 3.0-45.5% hydrocarbon solvent, 0.05-10,0% glycerol rectification bottom residue mixture, 0.05-4.5% surfactant, and 0.05-10.0% pH regulator: aluminum-containing waste from benzene-olefin alkylation process and/or caprolactam production waste. In a method of treating watered formation including injecting bitumen-containing reagent, forcing it into formation, and required ageing time, above-indicated reagent is used as bitumen-containing reagent.
EFFECT: increased filtration resistance in high-permeability washed zones and increased efficiency of using emulsion compositions during development of oil deposits.
6 cl, 2 tbl, 11 ex
| Title | Year | Author | Number |
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