A. G. Shcherbakova, V. S. Ovsyannikova, L. I. Svarovskaya, L. Altunina
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引用次数: 0
Abstract
An acid composition based on an adduct of an inorganic acid, a polyol and a surfactant has been developed at the Institute of Petroleum Chemistry, SB RAS. The composition, which includes glycerin and urea, stimulates the growth and hydrocarbon-oxidizing activity of the reservoir microflora under conditions of simulated biodegradation and physical modeling of oil displacement process. Biodegradation results in an increase in the proportion of oxygen-containing and aromatic structures, while the proportion of cyclic hydrocarbons in the group composition has decreased. The changes in the molecular mass distribution of mono, bi- and triaromatic hydrocarbons were revealed. The combined use of the acid composition and the hydrocarbon-oxidizing microflora provided an increased displacement of oil from models of core samples with low and high permeability.An acid composition based on an adduct of an inorganic acid, a polyol and a surfactant has been developed at the Institute of Petroleum Chemistry, SB RAS. The composition, which includes glycerin and urea, stimulates the growth and hydrocarbon-oxidizing activity of the reservoir microflora under conditions of simulated biodegradation and physical modeling of oil displacement process. Biodegradation results in an increase in the proportion of oxygen-containing and aromatic structures, while the proportion of cyclic hydrocarbons in the group composition has decreased. The changes in the molecular mass distribution of mono, bi- and triaromatic hydrocarbons were revealed. The combined use of the acid composition and the hydrocarbon-oxidizing microflora provided an increased displacement of oil from models of core samples with low and high permeability.