Development of conceptual geological models for the BV3-5 reservoirs of the Ob River’s left bank within the territory of the Slavneft-Megionneftegas JSC activity

UDK: 550.8.072

Key words: conceptual model, regional model, paleomorphological analysis, prospective area, missing interval, BV strata series, hard to recover reserves

Authors: M.A. Kuznetsov, M.F. Staritsyn (Slavneft-Megionneftegaz JSC, RF, Megion), A.N. Sitnikov, R.N. Asmandiyarov, O.E. Kurmanov, V.G. Miroshkin (Gazpromneft NTC LLC, RF, Saint-Petersburg)

Gazpromneft NTC LLC specialists made regional works on the conceptual geological modeling of oil-producing and potentially productive BV reservoirs of the Ob River left bank on the Slavneft-Megionneftegas JSC activity area which includes 8 license blocks in order to clarify geologic structure and to audit the resource base. Conceptual model based on united cube of reprocessed seismic data within the area of more than 2700 km². As a part of the work, the correlation of BV group reservoirs was rebuild at the area of 5000 km² (about 1800 wells among 9 oilfields). The methodology of V.S. Muromtsev was used to subtract etalon electrometric facies models of the Left bank oilfields group and to obtain facies distribution maps and reservoir properties. The regularities of BV group deposits formations were revealed and potentially productive areas were recommended for further appraisal and preparation of a development strategy for current deposits. According to drilling of new wells a practical confirmation of conceptual model was obtained. This experience proliferates to other assets of Slavneft-Megionneftegas JSC.
References
1. Akhpatelov E.A., Volkov V.A., Goncharova V.N. et al., Atlas – geologiya i
neftegazonosnost' Khanty-Mansiyskogo avtonomnogo okruga (Atlas – geology
and oil and gas potential of the Khanty-Mansiysk Autonomous Okrug),
Khanty-Mansiysk: IzdatNaukServis Publ., 2004, 148 p.
2. Neyman V.B., Teoriya i metodika paleotektonicheskogo analiza (Theory
and methods of paleotectonic analysis), Moscow: Nedra Publ., 1974, 80 p.
3. Shpil'man A.V., Myasnikova G.P., Plavnik G.I., Atlas – geologicheskoe stroenie
i neftegazonosnost' neokomskogo kompleksa Khanty-Mansiyskogo
avtonomnogo okruga – Yugry (Atlas - geology and oil and gas bearing of the
Neocomian complex of the Khanty-Mansi Autonomous District – Yugra),
Khanty-Mansiysk: IzdatNaukServis Publ., 2007, 191 p.
4. Muromtsev V.S., Elektrometricheskaya geologiya peschanykh tel – litologicheskikh
lovushek nefti i gaza (Electrometric geology of sand bodies -
lithologic traps of oil and gas), Leningrad: Nedra Publ., 1984, 260 p.
5. Metodicheskie rekomendatsii po podschetu zapasov nefti i gaza ob’emnym
metodom. Otsenka kharaktera nasyshchennosti po dannym GIS
(Guidelines for the calculation of reserves of oil and gas by volumetric
method. Assessment of the nature of saturation according to well logging):
edited by Petersil’e V.I., Poroskun V.I., Yatsenko G.G., Moscow – Tver: Publ. of
VNIGNI, 2003. 261 p.
6. Burdine N.T., Relative permeability calculations from pore size distribution
data, Trans. AIME, 1953, V. 71, pp. 71–77.