Gas hydrate accumulation in pores during compaction of growing sediments in the condition of rheological layered non-uniform sedimentation
Category: 14-1
UDC 550.31
E.I. Suetnova
Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
Abstract
Peculiarity of the evolution of gas hydrate accumulation in ocean floor was investigated by the numerical modeling for the case of sequential deposition of sediment material with different effective viscosity. Model calculations show that the decreasing of viscosity of sediments which precipitates on to sea floor after certain time essentially increases the rate of gas hydrate accumulation from dissolved gas. This value increases nonlinearly with respect to decreasing of effective viscosity and time.
Keywords: sedimentation, gas hydrate, compaction, rheology, numerical modeling.
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