Effect of Asphaltenes and Resins on Asphaltene Aggregation Inhibition, Rheological Behaviour and Waterflood Oil-Recovery

被引：23
作者：
Alcazar-Vara, Luis A. [1 ]
Zamudio-Rivera, Luis S. [1 ]
Buenrostro-Gonzalez, Eduardo [1 ]
机构：
[1] Inst Mexicano Petr, Eje Cent Lazaro Cardenas 152, Mexico City 07730, DF, Mexico
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2016年 / 37卷 / 11期
关键词：
Aggregation inhibition; asphaltenes; heavy oil viscosity; resins; waterflood oil-recovery; HEAVY CRUDE-OIL; NEAR-UV/VISIBLE SPECTROSCOPY; MASS-SPECTROMETRY; POLYISOBUTYLENE SUCCINIMIDES; PETROLEUM RESINS; MOLECULAR-WEIGHT; PRECIPITATION; VISCOSITY; ADSORPTION; DEPOSITION;
D O I：
10.1080/01932691.2015.1116082
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This study presents an investigation about the influence of resins and asphaltenes, extracted from two Mexican crude oils (light and heavy oil samples), on the asphaltene aggregation inhibition, rheological behavior, and waterflood oil-recovery. Resins and asphaltenes were characterized by means of elemental analysis, metals analysis by atomic absorption, H-1 and C-13 nuclear magnetic resonance (NMR) spectroscopy, and electrospray ionization mass spectrometry (ESI-MS) in order to evaluate the effect of their structural parameters on the phenomena studied. Efficiency of the resins fraction as natural inhibitors of asphaltene aggregation was evaluated trough ultraviolet-visible (UV-vis) spectroscopy. Results showed better efficiencies of resins on asphaltene aggregation inhibition at resin/asphaltene (R/A) ratios close to unity and at high temperature. In addition, efficiencies were influenced by structural characteristics of the asphaltene-resin system. Rheological behavior of the heavy crude oil sample was significantly influenced by the presence of asphaltenes and resins. Finally, asphaltenes and resins played an important role on wettability and waterflood oil-recovery.
引用
收藏
页码：1544 / 1554
页数：11
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