Integrated Approach to the Construction of Geological Models Based on Facies Analysis
https://doi.org/10.18599/grs.2024.3.5
Abstract
Using an integrated approach, 3D geological and hydrodynamic models were built using the results of facies analysis. A sedimentological description of the core was carried out with the interpretation of facies, the formation of which occurred in relatively deep-water sedimentation conditions of the Achimov strata and 7 facies were identified. Based on the results of the facies interpretation of the core, petrofacial modeling were performed according to the concept of pore space connectivity, connectivity coefficients (Sf) were selected and the dependence of the permeability determination for each facies was clarified.
In addition to determining facies by core, using the interpretation of lithology by logging, facies zones (A, B, C), associations of facies by area, seismic attributes (dynamic analysis), it was possible to perform a facies interpretation of logging curves (electrophations) and build facies maps for each cyclite within a large clinocyclite (formation). The geological model was built taking into account the internal structure of the formation and facies analysis, which made it possible to differentiate the formation into separate intervals with their dependences of filtration and capacitance properties.
This approach provided a better match of the model to the real geological structure and laid the predictive basis for subsequent drilling purposes.
About the Authors
O. S. Generalenko
Gazpromneft Group of Companies
Russian Federation
Russian Federation
Olga S. Generalenko – Expert
75–79 liter D, Moika River emb., 190000, Saint Petersburg
I. V. Shelepov
Gazpromneft Group of Companies
Russian Federation
Russian Federation
Ilya V. Shelepov – Head of Direction
75–79 liter D, Moika River emb., 190000
O. E. Ermakova
Gazpromneft Group of Companies
Russian Federation
Russian Federation
Olga E. Ermakova – Chief Specialist
75–79 liter D, Moika River emb., 190000, Saint Petersburg, Russian Federation
I. V. Motorin
Gazpromneft Group of Companies
Russian Federation
Russian Federation
Ivan V. Motorin – Chief Specialist
75–79 liter D, Moika River emb., 190000
G. N. Vorobyova
Gazpromneft Group of Companies
Russian Federation
Russian Federation
Guzel N. Vorobyova – Head of Product Development
75–79 liter D, Moika River emb., 190000
D. D. Paramoshina
Gazpromneft Group of Companies
Russian Federation
Russian Federation
Darya D. Paramoshina – Specialist
75–79 liter D, Moika River emb., 190000
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Review
For citations:
Generalenko O.S., Shelepov I.V., Ermakova O.E., Motorin I.V., Vorobyova G.N., Paramoshina D.D. Integrated Approach to the Construction of Geological Models Based on Facies Analysis. Georesursy = Georesources. 2024;26(3):33-42. (In Russ.) https://doi.org/10.18599/grs.2024.3.5
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