A method for ranking hydrocarbon reservoir with the zoning objects on the basis of geological knowledge and the economic efficiency of hydrocarbons production is proposed. For a ranking of hydrocarbon reserves, they are conventionally divided into four categories: profitable, contingently profitable, potential and non-commercial. Hydrocarbon reserves of reservoirs and fields are allocated to the categories, taking into account the geological, technological and economic criteria. The result is a ranking of information about the structure of the reserves for the planning of drilling, well intervention and the allocation of areas for pilot projects. The same information can be used to calculate the possible profiles of oil production in a different order involvement in the development zones of various categories of reserves and, thereby, to determine the optimal scenario of field development.

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