THE DISTRIBUTION OF HYDROCARBON RESOURCES BY FIELDS OF DIFFERENT SIZES AND BY THE NUMBER OF POOLS IN EACH FIELD
V.R. Livshits1,2, A.E. Kontorovich1,3
1A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
2Novosibirsk State University, ul. Pirogova 1, Novosibirsk, 630090, Russia
3Tyumen State Oil and Gas University, ul. Volodarskogo 38, Tyumen, 625000, Russia
Keywords: Petroleum basin, pools, fields, probability field/pool size distribution, truncated Pareto distribution, nonstationary Poisson point field, distribution of fields by the number of pools
Abstract
This study describes a procedure for estimating the distribution of hydrocarbon resources by fields with different amounts of reserves and by the number of pools in each field. Such estimation is important for predicting the exploration efficiency. The procedure first uses a simulation model for generating a population of hydrocarbon pool sizes. Then, the spatial distribution of pools over a petroleum basin is modeled as a nonstationary Poisson point field. When generating a field population in the basin, each field is considered a geometric object consisting of several pools according to the principle of their mutual geometric location. The proposed model was used to estimate the two-dimensional distribution of the number of fields and the amount of resources in them by the reserve sizes and by the number of pools in each field. The proposed assessment was made for oil resources in the West Siberian petroleum province.
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