SWS Academic Research eLibraryEarth & Planetary Sciences

Scholarly record

SOME ATTENUATION CHARACTERISTICS OF ULTRASOUND WAVES IN ASPHALTENE SUSPENSIONS OF HEAVY OIL

B. R. Akhmetov

First published: 2018-06-20https://doi.org/10.5593/sgem2018/1.4/s06.102View metrics

Abstract

Asphaltenes are one of the very important components of heavy oil. They define the viscosity of oil and provide significant problems in production, transportation and refinery of heavy crude oil. Investigation of their agglomerations under various influence parameters is necessary for optimization of production technology. The experimental results of frequency and concentration attenuation dependency of ultrasound waves in asphaltene suspensions are discussed. A toluene and binary mixture (toluene:n-heptane) with various ratios are selected for the dispersion phase. The obtained results indicate that additional attenuation has a relaxation character and depends from both asphaltene concentration and a binary mixture?s ratio. If the n-heptane privileges, the system loses its stability, which results to flocculation of dispersed phase particles. Hence, resulting to significant increase in attenuation of ultrasound waves. The comparison with the analogue system models investigated by different analysis methods revealed that attenuation coefficient change might provide additional information about the structural change and phase transformations. This information may be used for the improvement of stability in oil dispersed systems. The frequency dependent values are measured in the range of 10-23 MHz. The concentration starting from 0.1 to 10 %mass is evaluated at the same frequency range.

Publication Impact Profile

PlumX
  • Captures
  • Mendeley - Readers: 3
PLUMX see details

Publication details

Title
SOME ATTENUATION CHARACTERISTICS OF ULTRASOUND WAVES IN ASPHALTENE SUSPENSIONS OF HEAVY OIL
Authors
B. R. Akhmetov
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining
Publisher
STEF92 Technology
Year
2018
Pages
781-788
SWS Citekey
Akhmetov20186781788
ISSN
1314-2704
ISBN
978-619-7408-38-6
Language
en
Publication type
Conference Paper
Keywords
dispersed systemshigh molecular componentsasphaltenesmolecular complexesstructure transformationsclustersattenuation coefficientsrelaxation theorystructure absorption
References0
0references registered for this publication

Structured references will appear here after the reference import pass. The count is preserved now so the scholarly record is not incomplete.

View or Download full articleAccess options
Full paper accessChoose SWS login, librarian support, or instant article download.

SWS access login

Login as SWS Scientific Committee

Authors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.

For librarian assistance: [email protected]

Purchase Instant Access

48-hour online accessComing soon
Online-only accessComing soon
Download the full article in PDF formatEUR 35
  • Article can be downloaded after successful payment.
  • Article may be used according to SWS library access terms.
  • Article cannot be redistributed.
Get full paper

Back to publication list