Effective Self-Preservation Of Methane Hydrate Particles In Crude Oils

• Main Authors: A. S. Stoporev, A. Yu. Manakov
• Format: Text
• Language: English
• Published: Zenodo 2013
• Subjects: Gas hydrate; Gas liberation; Self-preservation; Water-in-oil emulsion.; Methane hydrate; Siberia
• Online Access: https://dx.doi.org/10.5281/zenodo.1080933; https://zenodo.org/record/1080933

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. : {"references": ["V.A. Istomin, V.G. Kvon, Preduprezdenie i likvidaciya gazovyh\ngidratov v sistemah dobychi gaza (Prevention and elimination of gas\nhydrates in gas production systems). Moscow: \"IRC GAZPROM,\"\n2004, p.506 (in Russian).", "A.V. Milkov, \"Global estimates of hydrate-bound gas in marine\nsediments: how much is really out there?,\" Earth Sci. Rev., vol. 66, pp.\n183 - 197, 2004.", "A.K. Sum, C.A. Koh, E.D. Sloan, \"Clathrate Hydrates: From Laboratory\nScience to Engineering Practice,\" Ind. Eng. Chem. Res., vol. 48, pp.\n7457-7465, 2009.", "V.A. Istomin, \"On possibility of superheating of natural gas hydrates\nand other hydrogen-containing crystalline structures,\" Russ. J. Phys.\nChem., vol. 73, no. 11, pp. 1887-1890, 1999.", "V.A. Istomin, V.S. Yakushev, \"Gas-hydrates self-preservation effect,\"\nin Physics and Chemistry of Ice. Sapporo: Hokkaido University Press,\n1992, pp. 136-140.", "A. Falenty, W.F. Kuhs, \"Self-Preservation of CO2 Gas Hydrates:\nSurface Microstructure and Ice Perfection,\" J. Phys. Chem. B, vol. 113,\npp. 15975-15988, 2009.", "W. Shimada, S. Takeya, Y. Kamata, T. Uchida, J. Nagao, T. Ebinuma, H.\nNarita, \"Texture change of ice on anomalous preserved methane clathrate\nhydrate,\" J. Phys. Chem. B, vol. 109, pp. 5802-5807, 2005.", "L.A. Stern, S. Circone, S.H. Kirby, W.B. Durham, \"Anomalous preservation\nof pure methane hydrate at 1 atm,\" J. Phys. Chem. B, vol. 105, pp.\n1756-1762, 2001.", "A. Falenty, M. Glockzin, G. Rehder, \"P-T dependent degree of \"selfpreservation\"\nof CH4 and NG-hydrates in the context of offshore gas\ntransport,\" in Proc. 7th International Conference on Gas Hydrates\n(ICGH 2011), Edinburgh, Scotland, United Kingdom, 2011.\n[10] S. Takeya, T. Uchida, J. Nagao, R. Ohmura, W. Shimada, Y. Kamata, T.\nEbinuma, H. Narita, \"Particle size effect of CH4 hydrate for selfpreservation,\"\nChem. Eng. Sci., vol. 60, pp. 1383-1387, 2005.\n[11] A.G. Ogienko, A.V. Kurnosov, A.Y. Manakov, E.G. Larionov, A.I.\nAncharov, M.A. Sheromov, A.N. Nesterov, \"Gas hydrate of argon and\nmethane synthesized at high pressure: composition, termal expansion\nand self-preservation,\" J. Phys. Chem. B, vol. 110, pp. 2840-2846, 2006.\n[12] A.I. Ancharov, A.Yu. Manakov, N.A. Mezentsev, B.P. Tolochko,\nM.A. Sheromov, V.M. Tsukanov, \"New station at the 4th beamline of the\nVEPP-3 storage ring,\" Nucl. Instrum.Methods Phys Res.Sect.A, vol. 470,\npp. 80-83, 2001."]}