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Effective Self-Preservation of Methane Hydrate Particles in Crude Oils

Authors: A. S. Stoporev, A. Yu. Manakov

Abstract:

In this work we investigated the behavior of methane hydrates dispersed in crude oils from different fields at temperatures below 0°C. In case of crude oil emulsion the size of water droplets is in the range of 50e100"m. The size of hydrate particles formed from droplets is the same. The self-preservation is not expected in this field. However, the self-preservation of hydrates with the size of particles 24±18"m (electron microscopy data) in suspensions is observed. Similar results were obtained for four different kinds of crude oil and model system such as asphaltenes, resins and wax in ndecane. This result can allow developing effective methods to prevent the formation and elimination of gas-hydrate plugs in pipelines under low temperature conditions (e. g. in Eastern Siberia). There is a prospective to use experiment results for working out the technology of associated petroleum gas recovery.

Keywords: gas hydrate, Gas liberation, Self-preservation, Water-in-oil emulsion

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1080934

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[1] V.A. Istomin, V.G. Kvon, Preduprezdenie i likvidaciya gazovyh gidratov v sistemah dobychi gaza (Prevention and elimination of gas hydrates in gas production systems). Moscow: "IRC GAZPROM," 2004, p.506 (in Russian).
[2] A.V. Milkov, "Global estimates of hydrate-bound gas in marine sediments: how much is really out there?," Earth Sci. Rev., vol. 66, pp. 183 - 197, 2004.
[3] A.K. Sum, C.A. Koh, E.D. Sloan, "Clathrate Hydrates: From Laboratory Science to Engineering Practice," Ind. Eng. Chem. Res., vol. 48, pp. 7457-7465, 2009.
[4] V.A. Istomin, "On possibility of superheating of natural gas hydrates and other hydrogen-containing crystalline structures," Russ. J. Phys. Chem., vol. 73, no. 11, pp. 1887-1890, 1999.
[5] V.A. Istomin, V.S. Yakushev, "Gas-hydrates self-preservation effect," in Physics and Chemistry of Ice. Sapporo: Hokkaido University Press, 1992, pp. 136-140.
[6] A. Falenty, W.F. Kuhs, "Self-Preservation of CO2 Gas Hydrates: Surface Microstructure and Ice Perfection," J. Phys. Chem. B, vol. 113, pp. 15975-15988, 2009.
[7] W. Shimada, S. Takeya, Y. Kamata, T. Uchida, J. Nagao, T. Ebinuma, H. Narita, "Texture change of ice on anomalous preserved methane clathrate hydrate," J. Phys. Chem. B, vol. 109, pp. 5802-5807, 2005.
[8] L.A. Stern, S. Circone, S.H. Kirby, W.B. Durham, "Anomalous preservation of pure methane hydrate at 1 atm," J. Phys. Chem. B, vol. 105, pp. 1756-1762, 2001.
[9] A. Falenty, M. Glockzin, G. Rehder, "P-T dependent degree of "selfpreservation" of CH4 and NG-hydrates in the context of offshore gas transport," in Proc. 7th International Conference on Gas Hydrates (ICGH 2011), Edinburgh, Scotland, United Kingdom, 2011.
[10] S. Takeya, T. Uchida, J. Nagao, R. Ohmura, W. Shimada, Y. Kamata, T. Ebinuma, H. Narita, "Particle size effect of CH4 hydrate for selfpreservation," Chem. Eng. Sci., vol. 60, pp. 1383-1387, 2005.
[11] A.G. Ogienko, A.V. Kurnosov, A.Y. Manakov, E.G. Larionov, A.I. Ancharov, M.A. Sheromov, A.N. Nesterov, "Gas hydrate of argon and methane synthesized at high pressure: composition, termal expansion and self-preservation," J. Phys. Chem. B, vol. 110, pp. 2840-2846, 2006.
[12] A.I. Ancharov, A.Yu. Manakov, N.A. Mezentsev, B.P. Tolochko, M.A. Sheromov, V.M. Tsukanov, "New station at the 4th beamline of the VEPP-3 storage ring," Nucl. Instrum.Methods Phys Res.Sect.A, vol. 470, pp. 80-83, 2001.