Geologiya Nefti i Gaza
Print ISSN 0016-7894
Online ISSN 2587-8263
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E.E. Polyakov, V.V. Rybal'chenko, A.E. Ryzhov, V.A. Skorobogatov, D.Ya. Khabibullin
Northern Eurasia: where to look for new largest, giant, and unique gas fields?
DOI: 10.31087/0016-7894-2018-4s-45-57
The paper focuses on position analysis and outlook of largest (100 to 300 BCM), giant (0.3 to 300 TCM), and unique (exceeding 0.3 TCM) fields prospecting. In Eurasia (Russian land, and Arctic and Far East sea shelf), there are total of 3.5 thousand hydrocarbon fields are discovered and partially explored, among them are 990 gas bearing fields. The discovered fields include: 6 unique (4 of them are in the West Siberian mega-province); 47 are giant and supergiant; 36 are largest; altogether, there are 89 fields with initial total in-place resources of 65.9 TCM (while initial in-place resources in Russia as a whole make 91.8 TCM). The conditions favourable for large-scale gas accumulation in different geological and genetic conditions are analysed for heterochronous basins in Russia and all over the world. Geostatistical analysis of discovery, position, and reserves is carried out for the largest, giant, and unique gas bearing fields in the Russian sedimentary basins. Probabilistic forecast for discovery of new fields with considerable reserves is presented. For instance, discovery of new giant gas fields is no longer predicted in the West Siberian Arctic areas (land), but we can expect 5 to 7 largest fields (each in the range of 100 to 250 BCM, hardly more). Discovery of 2–3 supergiant fields (exceeding 1 TCM) and up to 12 largest and giant fields is predicted in Eastern Siberia. The largest number of fields (76) and those with the largest reserves are assumed to occur in the West Arctic marine sector (ranging from 0.1 to 2.2–2.50 TCM each).
Key words: largest and giant fields; gas reserves; Arctic; prediction; discoveries.
For citation: Polyakov E.E., Rybal'chenko V.V., Ryzhov A.E., Skorobogatov V.A., Khabibullin D.Ya. Northern Eurasia: where to look for new largest, giant, and unique gas fields? Geologiya nefti I gaza. 2018;(4s):45–57. DOI 10.31087/0016-7894-2018-4s-45-57.
Gazprom VNIIGAZ LLC, Moscow oblast, Russia;
V.V. Rybal'chenko
Gazprom, Moscow, Russia;
A.E. Ryzhov
Gazprom VNIIGAZ LLC, Moscow oblast, Russia;
V.A. Skorobogatov
Gazprom VNIIGAZ LLC, Moscow oblast, Russia;
v_skorobogatov@vniigaz.gazprom.ru
D.Ya. Khabibullin
Gazprom, Moscow, Russia;