caa a22 4500 606225714 CHVBK 20210128101149.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10553-015-0555-3 doi (NATIONALLICENCE)springer-10.1007/s10553-015-0555-3 Chemical Method for Inhibition of Wax and Scale Deposition in Low-Permeability Reservoirs [Elektronische Daten] [Dongqi Niu, Jianwei Liang, Shanzhe Wang] The goal of this work was to optimize a chemical method for preventing wax and scale deposition in the aqing Yushulin oil field (China). We studied the characteristics of the crude oil and the water injected into the formation in different sections of the oil field. Preliminary testing of the compositions for wax and scale removal was done as applied to this oil field, and we determined the optimal concentrations of the reagents. We estimated the wax dissolution rate, the effectiveness of wax and scale inhibition, and the degree of viscosity reduction in the crude oil. The reagents were chemically modified with the aim of improving their effectiveness. The process of wax crystallization in the crude oil containing wax inhibitors was studied by differential scanning calorimetry. Springer Science+Business Media New York, 2015 wax removal nationallicence scale inhibition nationallicence differential scanning calorimetry nationallicence Niu Dongqi Key Laboratory of Enhanced Oil & Gas Recovery under Ministry of Education, Northeast Petroleum University, Daqing, China aut Liang Jianwei Daqing Yushulin Oilfield Company Ltd., Daqing, China aut Wang Shanzhe Key Laboratory of Enhanced Oil & Gas Recovery under Ministry of Education, Northeast Petroleum University, Daqing, China aut Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 50/6(2015-01-01), 494-500 0009-3092 50:6<494 2015 50 10553 https://doi.org/10.1007/s10553-015-0555-3 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/s10553-015-0555-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Niu Dongqi Key Laboratory of Enhanced Oil & Gas Recovery under Ministry of Education, Northeast Petroleum University, Daqing, China aut NATIONALLICENCE 700 1- Liang Jianwei Daqing Yushulin Oilfield Company Ltd., Daqing, China aut NATIONALLICENCE 700 1- Wang Shanzhe Key Laboratory of Enhanced Oil & Gas Recovery under Ministry of Education, Northeast Petroleum University, Daqing, China aut NATIONALLICENCE 773 0- Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 50/6(2015-01-01), 494-500 0009-3092 50:6<494 2015 50 10553