Exploration

Gazprom Neft has a significant resource base, the extent of which is increasing every year through pro-active geological exploration, the effective development of existing fields, and the acquisition of new assets.

An integrated approach to resource base development

Independent international petroleum consultants DeGolyer and MacNaughton estimate the company’s total proved and probable hydrocarbon reserves (2P, international SPE-PRMS* standards, including production through joint ventures** at 2.78 billion tonnes of oil equivalent (btoe) as at 31 December 2017. The company has enough proved hydrocarbon reserves to last 17 years.

Hydrocarbon reserves of Gazprom Neft(international SPE-PRMS standards (million tons of electricity)

Total hydrocarbon production in 2017 (89.8 mtoe) was offset by new reserves in the order of 170 percent. Key positive factors allowing the company to expand its resource base include the further improvement of geological prospecting and production drilling technologies, and the implementation of a dynamic ranking system, applied to all opportunities for organic and inorganic development.

Artificial intelligence (AI) in field development

Gazprom Neft uses “Industry 4.0” (“Internet of Things” (IoT) technologies) to develop techniques to improve efficiency in geological prospecting. Some 70 percent of the time geologists spend in evaluating a field is spent analysing data.

-75% less time spent on analysing information

The “Cognitive Geologist” project envisages the development of AI-based self-learning geological models, which will allow the time spent on analysing geological information to be cut from two years to a matter of months — even when taking all of the potential risks and uncertainties inherent in original source data into account.

Four new fields and 31 hydrocarbon deposits were opened across the Gazprom Neft Group in 2017 — one of the most important events of that year being the discovery of a new hydrocarbon field in the Sea of Okhotsk, 55 kilometres offshore from Sakhalin Island, which has been named the “Neptune” field. Reserves in place (geological reserves) are provisionally estimated at 255 mtoe, of which 70–80 mtoe are recoverable, with peak production expected to reach 5–6 mtoe per year.

Discovery of the Neptune field

to be commissioned in 2025–2027

255 mtoe geological reserves
80 mtoe recoverable reserves

A new hydrocarbon deposit, named the Nepture field, was discovered by Gazprom Neft Shelf LLC in October 2017, following the drilling and testing of a prospecting and appraisal well at the Ayashsky licence block, located in the Sea of Okhotsk, 55 kilometres offshore from Sakhalin Island.

The acquisition of development rights to the Tazovsky field (with recoverable reserves comprising 72 million tonnes of oil, 4.6 million tonnes of condensate, and 183.3 billion cubic meters of gas) and the Severo-Samburgsky field (90.5 million tonnes of oil) marked a major milestone in the development of a production cluster in the Yamalo-Nenets Autonomous Okrug.

In addition to this, Gazprom Neft also acquired a 25.05-percent interest in Evrotek-Yugra (which owns seven exploration and production licences in the Khanty-Mansi Autonomous Okrug-Yugra), including the right to increase this holding to 50 percent.

* SPE-PRMS (Petroleum Resources Management System) is the most widely used hydrocarbon reserve evaluation system in the world, taking into account the economics of hydrocarbon extraction. Reserves are measured in three categories: proved, probable and possible (3P).

** All businesses, excluding reserves attributable to Serbia’s NIS.