caa a22 4500 606226346 CHVBK 20210128101152.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10553-015-0630-9 doi (NATIONALLICENCE)springer-10.1007/s10553-015-0630-9 Conversion of Acidic Heavy Resid to Surfactant for Separating Water-Oil Emulsions and Increasing Oil Production [Elektronische Daten] [E. Movsum-zade, A. Nikitina, A. Belyaeva, R. Kunakova] Based on analysis of acidic heavy resid processing technologies with production of surfactants, we are proposing a new processing method allowing for multifunctional oilfield reagent production, which consists in removal of free sulfuric acid from the acidic heavy resid by mixing with water in a 1:6 ratio and further neutralization of the obtained solution with ammonia to pH 8-9. To determine the functional properties of the surfactant produced, we used a liquid solution and a crystalline powder obtained by evaporation. The reagent is distinguished by high detergent (up to 97%) and demulsifying (85%) capacity. The results of mathematical modeling of the oil displacement process using the Buckley-Leverett function (equation) showed that the oil extraction coefficient rises to 0.66 (oil viscosity 50 mPa·sec) when solution of the reagent is injected into the reservoir. Laboratory bench tests showed rise of oil extraction coefficient to 0.73 (oil viscosity 30 mPa·sec). Thus, the reagent can be used as demulsifier, oil displacement agent, and technical detergent. Springer Science+Business Media New York, 2015 acidic heavy resid nationallicence demulsifier nationallicence oil displacement agent nationallicence oilfield agent nationallicence technical detergent nationallicence Movsum-zade E. Ufa State Petroleum Technological University, Ufa, Russia aut Nikitina A. Bashkir State Agrarian University, Ufa, Russia aut Belyaeva A. Bashkir State Agrarian University, Ufa, Russia aut Kunakova R. Ufa State University of Economics and Service, Ufa, Russia aut Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/5(2015-11-01), 493-500 0009-3092 51:5<493 2015 51 10553 https://doi.org/10.1007/s10553-015-0630-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10553-015-0630-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Movsum-zade E. Ufa State Petroleum Technological University, Ufa, Russia aut NATIONALLICENCE 700 1- Nikitina A. Bashkir State Agrarian University, Ufa, Russia aut NATIONALLICENCE 700 1- Belyaeva A. Bashkir State Agrarian University, Ufa, Russia aut NATIONALLICENCE 700 1- Kunakova R. Ufa State University of Economics and Service, Ufa, Russia aut NATIONALLICENCE 773 0- Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/5(2015-11-01), 493-500 0009-3092 51:5<493 2015 51 10553