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Russian Geology and Geophysics

2009 year, number 7

On nonlinearity of petroleum formation

L.M. Burshtein
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: petroleum formation; sedimentary basin; accumulation, migration and dissipation of hydrocarbons; petroleum system
Pages: 620-629


A nonlocal dynamic model of petroleum formation is used to explore possible causes and consequences of the nonlinear behavior of large petroleum systems. As a result of this nonlinearity, migration and accumulation of oil starts only after hydrocarbons in a reservoir reach a threshold amount. Significant differences in the amount of in-place resources in macroscopically similar petroleum systems may be associated with minor random changes in initial conditions.