Asphaltenes aggregation during petroleum reservoir air and nitrogen flooding

Mohammed H. Khalaf, G. Ali Mansoori

Research output: Contribution to journalArticle

Abstract

Aggregation onsets of seven different asphaltenes dissolved in model oils, due to the effects of misciblized compressed air or nitrogen injections, were studied through molecular dynamics simulation. Natures of aggregations, cumulative coordination numbers, and interaction energies were investigated. Onset of aggregation processes were highly affected by injected gas concentration. In more cases little differences were observed between using air and pure nitrogen. However, asphaltene aggregation onset was highly affected by its molecular architecture. Asphaltenes with long aliphatic chains and archipelago structure showed low aggregation affinities.

LanguageEnglish (US)
Pages1121-1129
Number of pages9
JournalJournal of Petroleum Science and Engineering
Volume173
DOIs
StatePublished - Feb 1 2019

Fingerprint

asphaltene
Asphaltenes
Petroleum reservoirs
enhanced oil recovery
Molecular dynamics
Agglomeration
flooding
petroleum
Nitrogen
nitrogen
air
Air
compressed air
Compressed air
archipelago
oil
Computer simulation
Gases
gas
simulation

Keywords

  • Asphaltene
  • Compressed gases
  • Enhanced oil recovery
  • Interaction energies
  • Molecular dynamics
  • Onset of aggregation

ASJC Scopus subject areas

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology

Cite this

Asphaltenes aggregation during petroleum reservoir air and nitrogen flooding. / Khalaf, Mohammed H.; Mansoori, G. Ali.

In: Journal of Petroleum Science and Engineering, Vol. 173, 01.02.2019, p. 1121-1129.

Research output: Contribution to journalArticle

Khalaf, Mohammed H. ; Mansoori, G. Ali. / Asphaltenes aggregation during petroleum reservoir air and nitrogen flooding. In: Journal of Petroleum Science and Engineering. 2019 ; Vol. 173. pp. 1121-1129.
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