"Formation of hydrate particles in the process of gas bubble rising"
Nurislamov O.R., Lepikhin S.A., and Galimzyanov M.N.

A theoretical model for the process of methane bubble migration in water under the thermobaric conditions of hydrate formation is proposed. It is shown that two modes of hydrate particle formation are possible depending on the initial depth of bubble rising. A formula relating the hydrate particle porosity on this initial depth is derived. It is taken into account that the hydration shell grows inward along the contact surface between the gas and water penetrating through the pores. The effect of the initial size and depth of bubble formation on the dynamics of the hydrate formation process is analyzed. The dynamics of the hydrate formation process is studied for the following depths of gas sources: 500, 800, 1000, and 1500 m.

Keywords: gas bubble, hydrated crust, gas hydrate, hydrate formation.

  • Nurislamov O.R. – Nizhnevartovsk Branch of South Ural State University, ulitsa Mira 9, Nizhnevartovsk, 628600, Russia; Ph.D., Associate Professor, e-mail: nuris_o_r@mail.ru
  • Lepikhin S.A. – Surgut Institute of Oil and Gas, Tyumen State Oil and Gas University, ulitsa Entuziastov 38, Surgut, 628404, Russia; Ph.D., Associate Professor, e-mail: sg81@bk.ru
  • Galimzyanov M.N. – Mavlutov Institute of Mechanics, Ufa Branch of Russian Academy of Sciences; prospekt Oktyabrya 71, Ufa, 450054, Russia; Ph.D., Senior Scientist, e-mail: monk@anrb.ru