Thermodynamic and Geomechanical Processes Research in the Development of Gas Hydrate Deposits in the Conditions of the Black Sea

V. Bondarenko¹, K. Sai¹, K. Prokopenko¹, D. Zhuravlov²

¹Dnipro University of Technology, Dnipro, Ukraine

²Scientific Research Institute of Public Law, Kyiv, Ukraine

Min. miner. depos. 2018, 12(2):104-115

https://doi.org/10.15407/mining12.02.104

Full text (PDF)

ABSTRACT

Purpose. Research of thermodynamic and geomechanical processes occurring in a gas hydrate body under the influence of an activating agent (sea water from surface layers) in the conditions of the Black Sea by mathematical modeling using finite element method.

Methods. The modeling of thermodynamic and geomechanical processes is performed with the use of ANSYS v17.0 software and in accordance with the climatic, hydrogeological and physic-mechanical properties of the numerical model elements in the Black Sea gas hydrate deposit under consideration, which are similar to natural ones. The thermodynamic processes were studied in the section “Steady-State Thermal”, and the geomechanical (stress-strain state) in “Static Structural”.

Findings. The spatial model is developed, which allows to simulate thermodynamic and geomechanical processes in a gas hydrate body under the influence of a thermal agent. As a result of modeling, it was determined that under these conditions the temperature in the gas hydrate body varies with the distance from the production well similarly in both directions according to the polynomial dependence. What is more, at a distance from the well of 18.7 m the temperature is stable and equals +22°С, and in the range of 18.7 – 24.9 m – decreases by 3.1 times and reaches a value of +7°С. It was found out that deformations in a gas hydrate body under the influence of an activating agent, which is fed under pressure above the initial, are directed from the lateral boundaries to the center of the gas hydrate body in the direction of productive dissociation zones. This, in its turn, results in the displacement of the gas hydrate volume to the reaction proceeding center, improving the quality of the decomposition process and allows mining of 87 – 91% gas hydrate volume, which is presented in the model.

Originality. For the first time, for the conditions of the Black Sea gas hydrate deposits, an analytical assessment of the dissociation zone distribution from the production well under the influence of the thermal agent and the changes of the stress-strain state of the gas hydrated body during its decomposition, has been carried out. This allows to improve the technology of the gas hydrate deposits development in the conditions under consideration.

Practical implications. The technological scheme for the development of a gas hydrate body based on the combined approach to the effects of activators (temperature and pressure) is proposed, which eliminates the need to warm the boundary sections of the deposit and increases the amount of the supplied activating agent and its temperatures, which in its turn leads to a decrease in the resource- and energy consumption.

Keywords: gas hydrate deposit, finite element method, ANSYS software package, dissociation zone, technological scheme of development

REFERENCES

97/01843 Thermodynamic Conditions for the Presence of Gas Hydrates in Sediments of the Black Sea. (1997). Fuel and Energy Abstracts, 38(3), 151.
https://doi.org/10.1016/s0140-6701(97)87768-5

Bondarenko, V., Ganushevych, K., Sai, K., & Tyshchenko, A. (2011). Development of Gas Hydrates in the Black Sea. Technical and Geoinformational Systems in Mining, 55-59.
https://doi.org/10.1201/b11586-11

Bondarenko, V., Ganushevych, K., & Sai, K. (2012). Substantiation of Technological Parameters of Methane Extraction from the Black Sea Gas Hydrate. In Materiały Konferencyjne “Szkoła Eksploatacji Podziemnej” (pp. 20-24). Krakow, Poland: AGH University of Science and Technology.

Bondarenko, V., Symanovych, G., & Koval, O. (2012). The Mechanism of Over-Coal Thin-Layered Massif Deformation of Weak Rocks in a Longwall. Geomechanical Processes During Underground Mining, 41-44.
https://doi.org/10.1201/b13157-8

Bondarenko, V.I., Kharin, Ye.N., Antoshchenko, N.I., & Gasyuk, R.L. (2013). Basic Scientific Positions of Forecast of the Dynamics of Methane Release when Mining the Gas Bearing Coal Seams. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 24-30.

Bondarenko, V., Maksymova, E., Ganushevych, K., & Sai, K. (2013). Gas Hydrate Deposits of the Black Sea’s Trough: Currency and Features of Development. In Materiały Konferencyjne “Szkoła Eksploatacji Podziemnej” (pp. 66-69). Krakow, Poland: AGH University of Science and Technology.

Bondarenko, V., Maksymova, E., Ganushevych, K., Sai, K., & Illiashov, M. (2013). Scientific Bases of Methods and Technologies of Gas Hydrates Deposits Underground Mining. In World Mining Congress. Montreal, Quebec, Canada: Canadian Institute of Mining, Metallurgy and Petroleum.

Bondarenko, V., Lozynskyi, V., Sai, K., & Anikushyna, K. (2015). An Overview and Prospectives of Practical Application of the Biomass Gasification Technology in Ukraine. New Developments in Mining Engineering 2015: Theoretical and Practical Solutions of Mineral Resources Mining, 27-32.
https://doi.org/10.1201/b19901-6

Bondarenko, V., Svietkina, O., & Sai, K. (2017). Study of the Formation Mechanism of Gas Hydrates of Methane in the Presence of Surface-Active Substances. Eastern-European Journal of Enterprise Technologies, 5(6(89)), 48-55.
https://doi.org/10.15587/1729-4061.2017.112313

Bondarenko, V.I., Prokopenko, K.M., Sai, K.S., Svietkina, O.Yu., & Maksymova, E.O. (2018). Sposib vydobutku hazu z morskykh hazohidrativ. Patent No.123576, Ukraina.

Boswell, R. (2009). Is Gas Hydrate Energy Within Reach? Science, 325(5943), 957-958.
https://doi.org/10.1126/science.1175074

Carroll, J. (2014). Natural Gas Hydrates: A Guide for Engineers. Oxford, United Kingdom: Elsevier.

Chernov, A.A., Pil’nik, A.A., Elistratov, D.S., Mezentsev, I.V., Meleshkin, A.V., Bartashevich, M.V., & Vlasenko, M.G. (2017). New Hydrate Formation Methods in a Liquid-Gas Medium. Scientific Reports, (7), 40809.
https://doi.org/10.1038/srep40809

Demirbas, A. (2009). Methane from Gas Hydrates in the Black Sea. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 32(2), 165-171.
https://doi.org/10.1080/15567030802463885

Dychkovskyi, R.O., Lozynskyi, V.H., Saik, P.B., Petlovanyi, M.V., Malanchuk, Ye.Z., & Malanchuk, Z.R. (2018). Modeling of the Disjunctive Geological Fault Influence on the Exploitation Wells Stability During Underground Coal Gasification. Archives of Civil and Mechanical Engineering, 18(4), 1183-1197.
https://doi.org/10.1016/j.acme.2018.01.012

Ersland, G., & Graue, A. (2010). Natural Gas Hydrates. Bergen, Norway: University of Bergen.
https://doi.org/10.5772/9838

Ganushevych, K., & Sai, K. (2013). Development of Gas Hydrate Reservoir in the Black Sea. Young Petro, (8), 45-50.

Ganushevych, K., Sai, K., & Korotkova, A. (2014). Creation of Gas Hydrates from Mine Methane. Progressive Technologies of Coal, Coalbed Methane, and Ores Mining, 505-509.
https://doi.org/10.1201/b17547-85

Gas Hydrates in the Black Sea Basin. (1990). Deep Sea Research Part B. Oceanographic Literature Review, 37(12), 1115.
https://doi.org/10.1016/s0198-0254(06)80411-5

JOGMEC/NRCan/Aurora. (2018). Mallik Gas Hydrate Production Research Program. [online]. Available at:
http://mallik.nwtresearch.com/index-2.html

Kimoto, S., Oka, F., Fushita, T., & Fujiwaki, M. (2007). A Chemo-Thermo-Mechanically Coupled Numerical Simulation of the Subsurface Ground Deformations due to Methane Hydrate Dissociation. Computers and Geotechnics, 34(4), 216-228.
https://doi.org/10.1016/j.compgeo.2007.02.006

Kobolev, V. (2017). Structural, Tectonic and Fluid-Dynamic Aspects of Deep Degassing of the Black Sea Megatrench. Mining of Mineral Deposits, 11(1), 31-49.
https://doi.org/10.15407/mining11.01.031

Kollett, T.S., L’yuis R., & Uchida, T. (2001). Rastushchiy interes k gazovym gidratam. Neftegazovoe Obozrenie, (Osen’), 38-53.

Korsakov, O.D., Byakov, Y.A., & Stupak, S.N. (1989). Gas hydrates in the Black Sea Basin. International Geology Review, 31(12), 1251-1257.
https://doi.org/10.1080/00206818909465977

Krevelen, D.W., & Nijenhuis, K. (2009). Properties of Polymers. New York, United States: Elsevier.

Kvenvolden, K.A. (1993). Gas Hydrates – Geological Perspective and Global Change. Reviews of Geophysics, 31(2), 173-187.
https://doi.org/10.1029/93rg00268

Lan, S.Z., Hou, Y.B., & Fan, P.F. (2015). Numerical Analysis on the Failure Mode of Stage Backfill Stope due to Mining Disturbance. Advanced Materials Research, (1089), 239-243.
https://doi.org/10.4028/www.scientific.net/amr.1089.239

Lozynskyi, V., Saik, P., Petlovanyi, M., Sai, K., & Malanchuk, Y. (2018). Analytical Research of the Stress-Deformed State in the Rock Massif around Faulting. International Journal of Engineering Research in Africa, (35), 77-88.
https://doi.org/10.4028/www.scientific.net/jera.35.77

Makogon, Y. (1997). Hydrates of Hydrocarbons. Tulsa, Oklahoma, United States: Pennwell Books.

Makogon, Y.F., Holditch, S.A., & Makogon, T.Y. (2007). Natural Gas Hydrates – A Potential Energy Source for the 21st Century. Journal of Petroleum Science and Engineering, 56(1-3), 14-31.
https://doi.org/10.1016/j.petrol.2005.10.009

Makogon, Y.F. (2010a). Natural Gas Hydrates – A Promising Source of Energy. Journal of Natural Gas Science and Engineering, 2(1), 49-59.
https://doi.org/10.1016/j.jngse.2009.12.004

Makogon, Yu.F. (2010b). Gazogidraty. Istoriya izucheniya i perspektivy osvoeniya. Geologiya i Poleznye Iskopaemye Mirovogo Okeana, (2), 5-21.

Maksymova, E. (2015). Methodological Approach to the Development of Gas Hydrate Deposits. New Developments in Mining Engineering 2015: Theoretical and Practical Solutions of Mineral Resources Mining, 129-132.
https://doi.org/10.1201/b19901-24

Melnikov, V., & Gennadinik, V. (2018). Cryodiversity: the World of Cold on the Earth and in the Solar System. Philosophy and Cosmology, (20), 43-54.
https://doi.org/10.29202/phil-cosm/20/4

MH21 Research Consortium. (2018). Research Consortium for Methane Hydrate Resources in Japan. [online]. Available at:
http://www.mh21japan.gr.jp/english/

Mykhailov, V. (2016). Prospection and Estimation of Unconventional Hydrocarbon Deposits in Ukraine. Visnyk of Taras Shevchenko National University of Kyiv. Geology, 2(73), 38-45.
https://doi.org/10.17721/1728-2713.73.06

National Energy Technology Laboratory. (2017). Methane Hydrate. Science and Technology: A 2017 Update. Research Report. Washington, United States: U.S. Department of Energy.

Pedchenko, M., & Pedchenko, L. (2017). Analysis of Gas Hydrate Deposits Development by Applying Elements of Hydraulic Borehole Mining Technology. Mining of Mineral Deposits, 11(2), 52-58.
https://doi.org/10.15407/mining11.02.052

Petlovanyi, M.V., Lozynskyi, V.H., Saik, P.B., & Sai, K.S. (2018). Modern Experience of Low-Coal Seams UnderGround Mining in Ukraine. International Journal of Mining Science and Technology. Article in press.
https://doi.org/10.1016/j.ijmst.2018.05.014

Permyakov, M.E. (2010). Effektivnaya teploprovodnost’ gidratosoderzhashchikh obraztsov po rezul’tatam laboratornykh izmereniy pri razlichnykh R-T-usloviyakh. PhD. Novosibirsk: Institut neftegazovoy geologii i geofiziki im. A.A. Trofimuka Sibirskogo otdeleniya RAN.

Processes for Methane Production from Gas Hydrates. (2010). Green Energy and Technology, 161-181.
https://doi.org/10.1007/978-1-84882-872-8_5

Rogers, R. (2015). Producing Methane from Offshore Hydrates. Offshore Gas Hydrates, 101-133.
https://doi.org/10.1016/b978-0-12-802319-8.00004-8

Shnyukov, E.F. (2013). Mud Volcanoes of the Black Sea as a Prospecting Indicator of Methane Gas Hydrates. Lithology and Mineral Resources, 48(2), 114-121.
https://doi.org/10.1134/s0024490213010045

Swaranjit Singh, A.A. (2015). Techniques for Exploitation of Gas Hydrate (Clathrates) an Untapped Resource of Methane Gas. Journal of Microbial & Biochemical Technology, 07(02), 108-111.
https://doi.org/10.4172/1948-5948.1000190

Taheri, Z., Shabani, M.R., Nazari, K., & Mehdizaheh, A. (2014). Natural Gas Transportation and Storage by Hydrate Technology: Iran Case Study. Journal of Natural Gas Science and Engineering, (21), 846-849.
https://doi.org/10.1016/j.jngse.2014.09.026

Thakur, N.K., & Rajput, S. (2010). Gas Hydrates. Exploration of Gas Hydrates, 49-72.
https://doi.org/10.1007/978-3-642-14234-5_3

Vilner, Ya.M., Kovalev, Ya.T., & Nekrasov, B.B. (1976). Spravochnoe posobie po gidravlike, gidromashinam i gidroprivodam. Minsk: Vyisheyshaya shkola.

Waite, W.F., Stern, L.A., Kirby, S.H., Winters, W.J., & Mason, D.H. (2007). Simultaneous Determination of Thermal Conductivity, Thermal Diffusivity and Specific Heat in sI Methane Hydrate. Geophysical Journal International, 169(2), 767-774.
https://doi.org/10.1111/j.1365-246x.2007.03382.x

Wang, X., & Economides, M.J. (2011). Natural Gas Hydrates as an Energy Source – Revisited. In International Petroleum Technology Conference. Bangkok, Thailand: Bangkok Convention Centre Central World.
https://doi.org/10.2523/IPTC-14211-ms

Zhao, J., Yu, T., Song, Y., Liu, D., Liu, W., Liu, Y., & Li, Y. (2013). Numerical Simulation of Gas Production from Hydrate Deposits Using a Single Vertical Well by Depressurization in the Qilian Mountain Permafrost, Qinghai-Tibet Plateau, China. Energy, (52), 308-319.
https://doi.org/10.1016/j.energy.2013.01.066