Development of carbonate and fractured reservoirs
Carbonate and fractured reservoirs make up the biggest portion of Gazprom Neft's project portfolio. Moreover, the carbonate reservoirs account for 60% of oil reserves globally, and this share keeps growing because most new geological discoveries are linked to the carbonates.
In Russia, even though carbonate deposits are huge, the main focus is on the production of conventional terrigenous deposits. It is attributed to some telltale features found in carbonate and fissured reservoirs: complex pore space structure, high heterogeneity of reservoir properties, a variety of rocks in the reservoir composition and many others. Such specific features cause numerous difficulties in reserves mapping, field development planning and production management. Carbonate deposits get unevenly waterlogged, while conventional field development methods fail to capture a large portion of a formation making it hard to predict how wells will behave, etc.
The effective development of such deposits calls for unconventional approaches in many areas, including petrophysical modeling and core analysis, sets of special geophysical exploration techniques, unorthodox methods of geological and hydrodynamic modeling, etc. The technological dimension is focused on attracting and adapting the international best practices and subject-matter expertise to the Company's portfolio in various fields: geophysical exploration and data integration, geo-mechanics, object modeling, hydrodynamic studies, well performance profiles, and enhanced oil recovery methods.