Fluid Dynamics

, Volume 52, Issue 3, pp 416–423 | Cite as

Numerical simulation of formation of a concentrated brine lens subject to magma chamber degassing



The mathematical model of flow of a binary salt-water mixture through a porous medium in a wide range of pressure and temperature is developed taking different multiphase thermodynamic equilibria of the mixture into account. Formation of concentrated brine lenses above a degassing magma chamber is investigated within the framework of the model. The lenses are assumed to be coupled with generation of ore deposits. It is shown that the lens formation is caused by phase transitions of two different types undergoing at different depths in the magmatic fluid rising towards the surface. In the shallow zones salt precipitation on the skeleton of the porous medium in the form of a solid phase leads to clogging of pore space and reduction of the permeability. As a result, the magmatic fluid flow towards the surface is blocked and this facilitates the concentrated brine accumulation in a local zone.


flow through a porous medium phase transitions magmatic fluid ore deposit numerical simulation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A. Battistelli, C. Calore, and K. Pruess, “The Simulator TOUGH2/EWASG for Modelling Geothermal Reservoirs with Brine and Non-Condensible Gas,” Geothermics 26, No. 4, 437–464 (1997).CrossRefGoogle Scholar
  2. 2.
    K. Pruess, C. Oldenburg, and G. Moridis, TOUGH2 User’s Guide, Version 2.0 (Lawrence Berkeley Laboratory, Report LBL-43134, 2011).Google Scholar
  3. 3.
    C. Calore and G. G. Tsypkin, “Numerical Simulation of Precipitate Formation during the Boiling of Salt Solution in a Geothermal Reservoir,” Fluid Dynamics 50 (4), 558–565 (2015).MathSciNetCrossRefMATHGoogle Scholar
  4. 4.
    G. G. Tsypkin, “Salt Precipitation during Solution Evaporation in Low-Permeability Rocks,” Fluid Dynamics 44 (5), 733–739 (2009).ADSMathSciNetCrossRefMATHGoogle Scholar
  5. 5.
    T. Driesner, and C. A. Heinrich, “The System H2O-NaCl. Part I: Correlation Formulae for Phase Relations in Temperature-Pressure-Composition Space from 0 to 1000°C, 0 to 5000 bar, and 0 to 1 XNaCl,” Geochimica Cosmochimica Acta 71, 4880–4901 (2007).ADSCrossRefGoogle Scholar
  6. 6.
    T. Driesner, “The system H2O-NaCl. Part II: Correlations forMolar Volume, Enthalpy, and Isobaric Heat Capacity from 0 to 1000 °C, 0 to 5000 bar, and 0 to 1 XNaCl” Geochimica Cosmochimica Acta 71, 4902–4919 (2007).ADSCrossRefGoogle Scholar
  7. 7.
    P. Weis, “The Dynamic Interplay between Saline Fluid Flow and Rock Permeability in Magmatic-Hydrothermal Systems,” Geofluids 15, Nos. 1–2, 350–371 (2015).Google Scholar
  8. 8.
    A. A. Afanasyev and O. E. Melnik, “Mathematical Simulation ofMultiphase Flow through a Porous Medium under Near-Critical Conditions,” Vestn. MGU, Ser. 1, Matematika, Mekhanika 68, No. 3, 68–72 (2013).Google Scholar
  9. 9.
    A. A. Afanasyev, “Mathematical Model of Nonisothermal Multiphase Binary Mixture Flow through a Porous Medium,” Fluid Dynamics 44 (1), 80–89 (2011).ADSMathSciNetCrossRefGoogle Scholar
  10. 10.
    A. A. Afanasyev, “Simulation of the Properties of the Carbon-Dioxide-Water Binary Mixture under Sub-and Supercritical Conditions,” TVT 50, No. 3, 363–370 (2012).MathSciNetGoogle Scholar
  11. 11.
    A. Afanasyev, “MUFITS Reservoir Simulation Software,” URL: www.mufits.imec.msu.ru.Google Scholar
  12. 12.
    D. Schechter and J. Haynes,” “Relative Permeabilities of a Near Critical Binary Fluid,” Transp. Porous Media 9, No. 3, 241–260 (1992).Google Scholar
  13. 13.
    A. Verma and K. Pruess, “Thermohydrologic Conditions and Silica Redistribution near High-Level Nuclear Wastes Emplaced in Saturated Geological Formations,” J. Geophys. Res. 93, 1159–1173 (1988).ADSCrossRefGoogle Scholar
  14. 14.
    L. Pan, N. Spycher, C. Doughty, and K. Pruess, ECO2N V2. 0: A TOUGH2 Fluid Property Module for Mixtures of Water, NaCl and CO2 (Lawrence Berkeley National Laboratory, Report LBNL-57952, 2015).Google Scholar
  15. 15.
    E. J. Kiddle, B. R. Edwards, S. C. Loughlin, M. Petterson, R. S. J. Sparks, and B. Voight, “Crustal Structure beneath Montserrat, Lesser Antilles, Constrained by Xenoliths, Seismic Velocity Structure and Petrology,” Geophys. Res. Lett. 37, No. 19, L00E11 (2010).CrossRefGoogle Scholar
  16. 16.
    A. C. Harris, V. S. Kamenetsky, N. C. White, E. van Achterbergh, C. G. Ryan, “Melt Inclusions in Veins: Linking Magmas and Porphyry Cu Deposits,” Science 302, 2109–2111 (2003).ADSCrossRefGoogle Scholar
  17. 17.
    S. F. Cox, “Coupling between Deformation, Fluid Pressures, and Fluid Flow in Ore-Producing Hydrothermal Systems at Depth in the Crust,” Econ. Geol. 100, 39–75 (2005).Google Scholar
  18. 18.
    J. Blundy, J. Mavrogenes, B. Tattitch, S. Sparks, and A. Gilmer, “Generation of Porphyry Copper Deposits by Gas-Brine Reaction in Volcanic Arcs,” Nature Geosci. 8, No. 3, 235–240 (2015).ADSCrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Institute of MechanicsLomonosov Moscow State UniversityMoscowRussia

Personalised recommendations