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Abstract

Summary

Low salinity water process gains remarkable attention as an EOR method in recent decades. Its importance is a consequence of higher ultimate oil recovery. There is not a unique idea behind its influence, especially for carbonates due to their complex structure, yet researchers ascribe it to various mechanisms among which brine/rock interactions play an essential role. Brine/rock interactions are responsible for two major low salinity processes in carbonates, rock dissolution/precipitation and Multi-ion exchange (MIE). This study presents experimental and simulation study of the effect of these processes at the rock surface. The interactions are investigated through mass difference measurements of the carbonate samples (including both calcite and dolomite) as a result of reaching equilibrium condition with 4 different brines (typical seawater, and its 5, 20 and 40 dilution folds). A geochemical software, PHREEQC, is applied to simulate brine/rock interactions and surface complexation reactions in order to clarify the role of each mechanism. Good adaptation of experimental and simulation results shows the validity of the proposed model that is designed by PHREEQC.

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/content/papers/10.3997/2214-4609.202053124
2020-11-16
2024-04-26

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References

  1. Panga, M. K. R., Ziauddin, M., & Balakotaiah, V.
    (2005). Two-scale continuum model for simulation of wormholes in carbonate acidization. AIChE Journal, 51(12), 3231–3248.
     [Google Scholar]
  2. Parkhurst, D. L., & Appelo, C. A. J.
    (n.d.). User's guide to PHREEQC (version 2)-a computer program or speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations. Water-Resources Investigations Report, 99(4259), 312.
     [Google Scholar]
  3. (2013). Description of input and examples for PHREEQC version 3: a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations. US Geological Survey.
     [Google Scholar]
  4. Sharma, H., & Mohanty, K. K.
    (2018). An experimental and modeling study to investigate brine-rock interactions during low salinity water flooding in carbonates. Journal of Petroleum Science and Engineering, 165 (July 2017), 1021–1039. https://doi.org/10.1016/j.petrol.2017.11.052
     https://doi.org/https://doi.org/10.1016/j.petrol.2017.11.052 [Google Scholar]
  5. Skinner, A. J., LaFemina, J. P., & Jansen, H. J. F.
    (1994). Structure and bonding of calcite: A theoretical study. American Mineralogist, 79(3–4), 205–214.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.202053124
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Experimental Investigation and Geochemical Interpretation of Brine/Carbonate Rock Interactions during Low Salinity Waterflooding
Conference Proceedings 2020, 1 (2020); https://doi.org/10.3997/2214-4609.202053124
/content/papers/10.3997/2214-4609.202053124
/content/papers/10.3997/2214-4609.202053124
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