DSc of physical and mathematical Sciences, Head of the Geotherm mechanics laboratory at the Institute of problems of Geothermy and renewable energy (IPG VE), a branch of the Joint Institute of High Temperature of the Russian Academy of Sciences (JIHT RAS).

ResercherID: A-9732-2014
ScopusID: 7003852210
SPIN: 6917-9886

Education
In 1984, he graduated from the Department of mechanics and mathematics of the Lomonosov Moscow State University.
In 1992, he defended his PhD Thesis in the specialty on Mechanics of Liquid, Gas and Plasma.
In 2003, he defended his DSc Dissertation on the specialty on Geophysics, geophysical methods of mineral prospecting.

Science career
From 2000 to the present, Head of the laboratory and member of the Academic Council of the IGP VE. Scientific Director of the planned research topic of the laboratory. Member of the dissertation Council D212. 052. 06, specialty 05.04.03 at the Dagestan State Technical University (DSTU).
Author of about 100 scientific publications and co-author of 1 monograph.

Research interests: mechanics, applied mathematics, physics, Geophysics.

The main work was carried out in the following areas
- Development of a generalized thermomechanical model for the formation of a thermal field in the near - surface layer of the Earth, including the lithosphere and asthenosphere, based on the concepts of developed convection in the mantle, taking into account the contribution of mantle, radiogenic and dissipative components, as well as the influence of local processes of convective heat and mass transfer.
- Study of the influence of various complicating factors (inhomogeneity of permeability, presence of impurity, modulation of parameters, adsorption of components, etc.) on the nature and stability of convective movements of liquids and their mixtures in a porous medium.
- Investigation of filtration convection of highly compressible gases and their mixtures near the thermodynamic critical point of the liquid-vapor phase transition.
- Non-isothermal flows with phase transitions in porous media and geothermal systems.
- Research in the theory of fracturing development in a poroelastic medium.

Scientific achievements
- A three-dimensional thermomechanical model of the formation of the thermal field in the earth's near-surface layer, the stress field, and the surface topography is Constructed, based on modern concepts of developed convection in the mantle and generalizing known models of a similar type.
- The criterion of absolute convective stability of a compressible viscous heat-conducting liquid is obtained, which coincides with the Schwarzschild criterion in the special case when the thermophysical properties of the medium and the adiabatic gradient are constant.
- A new model of hydrothermal convection in fault zones of the earth's crust is proposed and adequate mathematical methods are developed.
- Analytical and numerical methods have revealed the regularities of filtration convection of near-critical van der Waals gas at significant temperature differences.
- Exact and numerical solutions are obtained for a number of problems related to heat and mass transfer with phase transitions in a geothermal reservoir and in the wellbore of a production well.
- New results related to the theory and modeling of fracturing in a poroelastic medium are obtained.
- For the first time, a criterion for crack development in a poroelastic medium is obtained that takes into account the processes of fluid filtration in the pore space. It generalizes its analog for a purely elastic medium, derived from the concept of brittle and quasi-brittle fracture by Griffiths and Irwin.
- A mathematical model of the motion of solutions is proposed, taking into account the osmotic effect.

List of main publications for the last 5 years (2015-2020)

• Alkhasov A., Bulgakova N., Ramazanov M. Studies of the heat and mass transfer phenomenon when flowing a vapor–water mixture through the system of geothermal reservoir–well. Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2020, Vol. 6, No. 1, 11 p.
• Lobkovsky L.I., Ramazanov M.M. On the theory of filtration in a medium with double porosity. Reports of the Academy of Sciences, 2019, Vol. 484, No. 3, pp. 348-351.
• Ramazanov M.M., Karakin A.V., Lobkovsky L.I. Mathematical model of solution motion taking into account the osmotic effect. Reports of the Academy of Sciences, 2019, Vol. 489, No. 1, pp. 75-79.
• Ramazanov M.M., Kritsky B.V., Savenkov E.B. Criteria for the development of cracks in a poroelastic medium. In the book: Abstracts of international conferences "Perspective materials with a hierarchical structure for new technologies and reliable structures" and "Chemistry of oil and gas" in the framework of the International Symposium "Hierarchical materials: development and applications for new technologies and reliable structures", 2018, pp. 132-133.
• Borisov V.E., Ivanov A.I., Rritskiy B.V., Menshov I.S., Ramazanov M.M., Savenkov E.B. Numerical techniques for poroelastic hydraulic fracture. In the collection: Fourth international school of young scientists: collection of school materials, Ishlinsky Institute of mechanical problems of the Russian Academy of Sciences, Lomonosov Moscow state University, 2018, pp. 9-11.
• Borisov V., Ivanov A., Kritskiy B., Menshov I., Ramazanov M., Savenkov E. Fully coupled numerical simulation techniques for 3d hydraulic fracturing. Journal of Physics: Conference Series, 2018, p. 012085.
• Ramazanov M., Borisov V., Kritsky B., Savenkov E. Fracture growth criterion for poroelastic media. In the collection: AIP Conference Proceedings. Proceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures, 2018, p. 020250.
• Ramazanov M.M., Savenkov E.B. Criterion of crack development in a poroelastic medium. Bulletin of the Bauman Moscow state technical University, Natural Sciences series, 2018, No. 5 (80), pp. 65-82.
• Lobkovsky L.I., Ramazanov M.M. Front-line mode of heat and mass transfer in a gas-hydrate reservoir at negative temperatures. Proceedings of the Russian Academy of Sciences, Fluid and gas mechanics, 2018, No. 4, pp. 75-89.
• Ramazanov M.M., Karakin A.V. Effect of "unsinkability" of nodules on the ocean floor. 2018, No. 2, pp. 205-210.
• Ramazanov M.M., Kritskiy B.V., Savenkov E.B. Formulation of the J-integral for the model of a poroelastic medium Bio. Engineering and physical journal, 2018, Vol. 91, No. 6, pp. 1677-1684.
• Karakin A.V., Ramazanov M.M., Borisov V.E. Incompletely coupled equations of hydraulic fracturing. Mathematical Models and Computer Simulations, 2018, Vol. 10, No. 1, pp. 45-58.
• Ramazanov M.M., Karakin A.V., Borisov V.E. Analytical investigation of the dynamics of a hydraulic fracture using the principle of incomplete coupling. Mathematical Models and Computer Simulations, 2018, Vol. 10, No.3, pp. 322-332.
• Lobkovsky L.I., Ramazanov M.M. Mathematical model of axisymmetric quasi-stationary heat and mass transfer in a gas hydrate reservoir. Proceedings of the Russian Academy of Sciences, Fluid and gas mechanics, 2017, No. 4, pp. 85-96.
• Ramazanov M.M., Karakin A.V., Borisov V.Y. Analytical study of the dynamics of cracks hydraulic fracturing with the use of the principle of partial coherence. Mathematical modeling, 2017, Vol. 29, No. 11, pp. 3-18.
• Karakin A.V., Ramazanov M.M., Borisov V.E., Menshov I.S., Savenkov E.B. Self-Similar solution of the hydraulic fracturing problem for a poroelastic medium. Mathematical modeling, 2017, Vol. 29, No. 4, pp. 59-74.
• Karakin A.V., Ramazanov M.M., Borisov V.E. Problem of incomplete coupling of hydraulic fracturing equations. Mathematical modeling, 2017, Vol. 29, No. 6, pp. 115-134.
• Ramazanov M.M., Alkhasova D.A. Mathematical model of heat and mass transfer in a geothermal reservoir during extraction of a steam-water mixture. High temperature Thermophysics, 2017, Vol. 55, No. 2, Pp. 284-290.
• Alkhasov A.B., Bulgakova N.S., Ramazanov M. M. Heat and mass Transfer in the geothermal reservoir-well system when extracting a steam-water mixture. Proceedings of the Russian Academy of Sciences, Energy, 2017, No. 6, pp. 125-134.
• Ramazanov M.M., Alhazova D.A., Abasov, M. Flow and heat transfer in a geothermal reservoir by removing water mixture. Engineering and physical journal, 2017, Vol. 90, No. 3, pp. 640-647.
• Karakin A.V., Ramazanov M.M. Planar two-body problems in Stokes hydrodynamics. Mathematical modeling, 2016, Vol. 28, No. 4, pp. 43-63.
• Ramazanov M.M., Bulgakova N.S. Criterion for the occurrence of filtration convection of a mixture taking into account equilibrium and non-equilibrium adsorption. Engineering and physical journal, 2015, Vol. 88, No. 6, pp. 1307-1313.
• Alkhasov A.B., Ramazanov M.M., Alkhasova D.A. On the front mode of heat and mass transfer in a geothermal reservoir. Engineering and physical journal, 2015, Vol. 88, No. 6, pp. 1314-1320.

Awards and honors:
awarded the Certificate of Honor of the Russian Academy of Sciences, Order of the Presidium of the Russian Academy of Sciences No. 10105-434, 2015.

Other professional activities:
scientific management of graduate students.

Address:
Institute of problems of Geothermy and renewable energy (IPG VE),
39A I. Shamil Ave., Makhachkala, Republic of Dagestan, 367030, Russian Federation, phone +7(8722)629357
E-mail: mukamay-ipg@mail.ru