This work considers one of the most important issues in the development of oil fields - oil production efficiency. The importance of this issue is related to the fact that for many oil producing countries (e.g. oil fields in Western Siberia, Russia) most of conventional oil reserves are already involved in production and are represented by oil fields at a late stage of development that are characterized by a sharp decrease in productivity. Almost all remaining oil reserves are represented by oil fields that cannot be developped economically with conventional technologies. As an illustration, new fields of Western Siberia are characterised by the formations with extremely low permeability.