Enzymatic generation of oil-displacing compositions under conditions of low-temperature viscous-oil reservoirs

被引:0
|
作者
Altunina, L. K. [1 ]
Svarovskaya, L. I. [1 ]
机构
[1] Russian Acad Sci, Inst Petr Chem, Siberian Branch, Tomsk, Russia
关键词
Soybean Meal; Ammonium Nitrate; Petroleum Chemistry; Reservoir Model; Test Column;
D O I
10.1134/S0965544112060023
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The enzymatic hydrolysis of urea contained in an oil-displacing composition by the action of plant urease has been studied. Optimal ratios of urea to natural urease-containing sources have been determined for the intense hydrolysis accompanied by the release of CO2, which reduces the viscosity of crude oil, and ammonia, which forms an alkaline buffer system, thereby increasing the detergent properties of the composition. The effect of hydrolysis products on the rheological characteristics of heavy crude from the Usa oil-field has been examined. The recovery of viscous crude oil from a model reservoir using the oil-displacing composition and urease has been investigated. DOI: 10.1134/S0965544112060023
引用
收藏
页码:441 / 446
页数:6
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