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Experimental and Theoretical Investigation of Inorganic Scale Deposition in Carbonated Micromodels

[+] Author Affiliations
Negar Mosavati

Islamic Azad University Science and Research Branch, Tehran, Iran

Riyaz Kharrat, Seyed Amir Farzaneh, Mohammad Hossein Ghazanfari

Petroleum University of Technology, Tehran, Iran

Paper No. ICNMM2009-82193, pp. 949-956; 8 pages
doi:10.1115/ICNMM2009-82193
From:
  • ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels
  • Pohang, South Korea, June 22–24, 2009
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 978-0-7918-4349-9 | eISBN: 978-0-7918-3850-1
  • Copyright © 2009 by ASME

abstract

In this study, a series of experiments have been conducted on glass micromodel to investigate the effect of different parameters on the gradual process of Barium Sulphate precipitation. Due to the visual nature of the glass micromodel, the shape, size and distribution of scaling formation in a carbonate-rock-look-alike pattern with water-wet characteristics is precisely observable. In addition, an exponential functionality (correlation) was proposed which incorporates all physical parameters affecting the behavior of the system in a dimensionless form. Reynolds number and deviation from equilibrium conditions are the backbones of this correlation. The adjustable exponents of the equation were determined by using a suitable optimization algorithm. This meaningful correlation can also predict the core extracted data with reasonable accuracy. The microscopy observation results confirmed that the deposition is initiated and extended in the middle space of pores and throats. In addition, by increasing the temperature and brine concentration as well as by decreasing the flow rate, the size of crystals was grown. Moreover, the experimental results indicated that by increasing the temperature and brine concentration as well as by decreasing the flow rate, the scaling tendency was increased.

Copyright © 2009 by ASME

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