... be extracted from the subsoil during the period of field development should be determined on the basis of the presented express valuation methodology. The methodology allows making decisions on the introduction of oil reserves into commercial development. On the basis of the problem being solved, a risk...

... results, probably due to structural features. Also, at the stage of assessing oil reserves in reef reservoirs, a number of problems arise related to the calculation methods. The standard technique for assessing the geological reserves of Frasnian deposits of single reefs leads to an underestimation...

... the primary means of well productivity increasing on highly flooded and marginal fields. The knowledge of the field geological structure and its current oil reserves distribution allows to plan effectively the horizontal wells borehole trajectories. The geological and hydrodynamic models become the main means...

... to reserves of the Tatneft. The Company’s priorities as regards reserves replacement are: search for new fields, as well as for poorly explored unconventional oil reserves (heavy oil, domanik sediments, carbonate fractured reservoirs, tight reservoirs, sediments in the crystalline basement, sediments...

..., application of such compositions can cause total blockage of high and medium permeability intervals that contain considerable oil reserves despite high water saturation. This puts such intervals out of operation for a long time to the extent that the entire reservoir becomes non-producing. At the same time...

... and physical conditions have been widely used, including the extraction of residual reserves of long-term exploited deposits. Extensive experience has been accumulated in the development of complex small fields with hard-to-recover oil reserves. It is concluded that the proposed by A.E. Kontorovich, a new...