Home – Home – Jornals – Russian Geology and Geophysics 2001 number 11-12

In many regions of the world, including West Siberia, deposits of hydrocarbons in hydrate state are considered to be petroliferous formations. As to methods of search, prospecting, and exploitation of this kind deposits, however, the state-of-the-art is not satisfactory.
In Russia, the problem of existence of gas hydrate deposits is usually discussed in the context of hydrate saturation of the Cenomanian gas pool at the Messoyakha deposit. One more producing horizon has been recognized in the north of West Siberia, which is related to the Gazsalin Member of the Kuznetsov Formation of Turonian-Coniacian age, lying above the Cenomanian deposits and having more favorable PT-conditions for hydrate formation.
Analysis of specific features of geologic structure, temperature regime of the section, gas composition, mineralization of formation waters, logging data, seismic prospecting materials, and sampling suggests that gas hydrates can exist in the Gazsalin Member of the East Messoyakha deposit.
One of the possible directions of further study of genesis of natural gas hydrates and estimation of the effect of gas hydrate processes on the structure of gas deposits and gas resources is study of the hydrocarbons accumulated in the Gazsalin Member of the East Messoyakha deposit with sampling of core by a sealed thermostatically controlled corer.