摘要：Magnetic treatment is a widely used physical treatment technique in oilfields. The influencing mechanism of magnetic field on waxy crude oil has drew much attention in recent years. Molecular dynamics simulation was employed in this paper to study the influence of magnetic field on waxy crude oil. The waxy crude oil model consists of light oil and 24.9% by weight of paraffin. The simulation results showed that the density of waxy crude oil model firstly decreased and then increased with the strengthening of magnetic field intensity, while the diffusion coefficient increased in low magnetic field intensity and decreased in high intensity. Viscosity was calculated by Rouse Model. The reduction of viscosity only appeared within a specific range of magnetic field intensities, mainly concentrated on the low intensities. The viscosity increases when the range is overstepped, which is supposed to be the reason of the unstable effects of magnetic treatment. The aggregation of paraffin molecules in magnetic field was proved by analysing the radial distribution function. The analysis of energy represented that the magnetic field had greater influence on molecular morphology than distances between molecules. The simulation results provide micro-perspective of waxy crude oil in the presence of magnetic field, which help to offer the mechanism explanation of magnetic treatment effects.
© 2017 Elsevier B.V.

ISSN号：0167-7322

卷、期、页：v 249,p1052-1059

发表日期：2018-01-01

影响因子：3.648000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Journal of Molecular Liquids

通讯作者：陈雪娇,李文超,李师瑶,陈玉杰

第一作者：侯磊

论文类型：期刊论文

论文概要：陈雪娇,侯磊,李文超,李师瑶,陈玉杰，Molecular dynamics simulation of magnetic field influence on waxy crude oil，Journal of Molecular Liquids，2018，v 249,p1052-1059

论文题目：Molecular dynamics simulation of magnetic field influence on waxy crude oil