Innovation in the Field of Hydrocarbon Production
- increasing oil recovery in depleted fields
- developing assets electronically
- developing unconventional reserves
- developing fields on the Arctic shelf
In 2014, Gazprom Neft finalized its technological strategy for exploration and production. To ensure the effective implementation of the strategy in each core upstream business unit, staff have been identified to take charge of the technological development of each particular area.
Exploiting non-traditional reserves
In 2014, Gazprom Neft-Khantos completed the drilling of the first horizontal well for exploring unconventional reserves in the Palyanovskaya zone of the Krasnoleninskoye field, and carried out hydraulic fracturing of the reservoir. This is Gazprom Neft’s first such operation in deposits with unconventional hydrocarbon reserves.
Alkaline-surfactant-polymer (ASP) flooding
ASP has the potential to increase oil yield by a process of chemically flooding a reservoir with a ternary mixture (consisting of anionic surfactant polymers, soda, and polymer). The oil recovery rate can be increased by pumping a combination of chemicals into the well. It is expected that ASP flooding will be widely used in the fields of Western Siberia, and the oil extraction ratio can be improved by
In 2014, wells were drilled as part of a pilot project to apply chemical flooding using a ternary ASP mixture (soda, surfactant, and polymer) in the Salym group of fields. Equipment for pumping the mixture into the formation was also delivered. Pilot pumping is planned for the second half of 2015. At the end of the pilot stage, the effectiveness of the technology will be analysed and the feasibility of its implementation on an industrial scale will be assessed.
Vadim Yakovlev Gazprom Neft First Deputy CEO
Gazprom Neft’s strategic plans include the development of a new production site in Eastern Siberia. A distinctive feature of the entire region is that so far it has been poorly geologically surveyed. Therefore, the new, accurate data that we are obtaining through the application and combination of various advanced exploration methods will help create the most effective model for the development of these fields, and in a few years we will be able to start commercial oil production.
Drilling of super-long horizontal wells
This technology makes it possible to significantly increase the oil recovery rate, which is especially relevant for mature fields. In 2014, the first Russian oil well with a horizontal shaft of more than 1,500 m and a total length of about 4,200 m was drilled on the Yamal Peninsula.
In 2014, Gazprom Neft completed electrical prospecting of an area of 600 km2 in the Tympuchikansky and Vakunaysky blocks in Eastern Siberia. The completed project represents the most extensive research in the world undertaken using electrical prospecting, namely the near-field transient electromagnetic (TEM) method. A record number of physical TEM sensors (more than 7,600) were used, and the volume of data obtained as well as the duration of the work (from December 2013) were also unprecedented. Through the observations, a significant amount of new geological information about the Tympuchikansky and Vakunaysky sites has been obtained. The findings of the study in combination with seismic data make it possible to create a more accurate picture of the geological structure of the sites.
Introduction of wireless seismic survey technologies in Russia
In 2014, the Company implemented the first seismic survey project in Russia using innovative wireless seismic technology. The technology makes it possible to halve the required amount of deforestation compared with conventional seismic survey technologies. The pilot project demonstrated that by using the new method, approximately 200 hectares of forest — or roughly 60,000 trees — are saved per 400 km2.
Implementation of the GeoMate information system
During the reporting year, the Company introduced its proprietary GeoMate information system using advanced technology to analyse geological and production data. The system takes into account the impact of more than 200 geological parameters and consolidates about 80% of all data available from the analysis of geological and geophysical information. Access to a single information environment enables employees in different departments at Gazprom Neft to promptly examine all the available parameters for modelling fields and identifying and detailing potential zones and reservoirs. Comprehensive analysis of this information helps geologists, geophysicists, petrophysicists, and specialists in other areas to develop integrated solutions in field prospecting and development, drawing on a wide range of data. The creation of in-house software frees the Company from dependence on similar imported products.