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Dissipative particle dynamics simulation on the rheological properties of heavy crude oil
Wang, Sibo1,2; Xu, Junbo1; Wen, Hao1
2015-11-02
Source PublicationMOLECULAR PHYSICS
ISSN0026-8976
Volume113Issue:21Pages:3325-3335
AbstractThe rheological properties of heavy crude oil have a significant impact on the production, refining and transportation. In this paper, dissipative particle dynamics (DPD) simulations were performed to study the effects of the addition of light crude oil and emulsification on the rheological properties of heavy crude oil. The simulation results reflected that the additionof light crude oil reduced the viscosity effectively. The shear thinning behaviour of crude oil mixtures were becoming less distinct as the increase of the mass fraction of light crude oil. According to the statistics, the shear had an influence on the aggregation and spatial orientation of asphaltene molecules. In addition, the relationship between the viscosity and the oil mass fraction was investigated in the simulations of emulsion systems. The viscosity increased with the oil mass fraction slowly in oil-in-water emulsions. When the oil mass fraction was higher than 50%, the increase became much faster since systems had been converted into water-in-oil emulsions. The equilibrated morphologies of emulsion systems were shown to illustrate the phase inversion. The surfactant-like feature of asphaltenes was also studied in the simulations.
KeywordDpd Heavy Crude Oil Rheological Properties Viscosity Emulsion
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1080/00268976.2015.1021396
Indexed BySCI
Language英语
WOS KeywordDENSE COLLOIDAL SUSPENSIONS ; MOLTEN ALKALI-HALIDES ; PIPELINE TRANSPORTATION ; MOLECULAR-DYNAMICS ; MESOSCOPIC SIMULATION ; IN-WATER ; ASPHALTENE ; VISCOSITY ; FLOW ; EMULSIONS
WOS Research AreaPhysics
WOS SubjectPhysics, Atomic, Molecular & Chemical
Funding OrganizationNational Natural Science Foundation of China(21306199 ; Fund of State Key Laboratory of Multiphase Complex Systems, IPE, CAS(MPCS-2012-A-07) ; 21490584)
WOS IDWOS:000363980300021
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19813
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wang, Sibo,Xu, Junbo,Wen, Hao. Dissipative particle dynamics simulation on the rheological properties of heavy crude oil[J]. MOLECULAR PHYSICS,2015,113(21):3325-3335.
APA Wang, Sibo,Xu, Junbo,&Wen, Hao.(2015).Dissipative particle dynamics simulation on the rheological properties of heavy crude oil.MOLECULAR PHYSICS,113(21),3325-3335.
MLA Wang, Sibo,et al."Dissipative particle dynamics simulation on the rheological properties of heavy crude oil".MOLECULAR PHYSICS 113.21(2015):3325-3335.
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