Rock Physics And Seismic Characterisation Of Thin Clastic Reservoirs In Western Siberia

2009 ◽  
Author(s):  
Erick Alvarez ◽  
Jaume Hernandez ◽  
Jonathan Hall ◽  
Hakima B. Meradi ◽  
Olivier Siccardi ◽  
...  
Keyword(s):  
Western Siberia ◽  
Rock Physics ◽  
Clastic Reservoirs

Rock-physics-based estimation of critical-clay-volume fraction and its effect on seismic velocity and petrophysical properties

Geophysics ◽  
2014 ◽  
Vol 79 (3) ◽  
pp. D175-D185 ◽  
Author(s):  
Hamid Adesokan ◽  
Yuefeng Sun
Keyword(s):  
Aspect Ratio ◽  
Seismic Velocity ◽  
Volume Fraction ◽  
Rock Physics ◽  
Clay Content ◽  
Elastic Behavior ◽  
Data Set ◽  
Abrupt Decrease ◽  
Shaly Sand ◽  
Clastic Reservoirs

Knowledge of the clay content in clastic reservoirs is important for predicting reservoir quality and properties. We used a microgeometrical model for shaly sand and sandy shale to define the critical-clay-volume fraction and explain the dependence of the bulk modulus on clay content. We found that the concept of the pore-aspect ratio relating to the critical-clay-volume fraction was important to interpret the elastic behavior of shaly sandstone. An abrupt decrease in pore-aspect ratio from about 0.23 to about 0.04 was observed where the clay-volume fraction was greater than the critical value of 32% for the studied data set. At the critical-clay-volume fraction of 32%, an increase in pore compressibility also occurred from about 0.6 to about [Formula: see text]. Results revealed that the microgeometrical model compared to other models can better explain the existence of highly scattered compressional velocity-porosity crossplots when the clay content is close to the critical amount. We discovered that the model can be applied in well-logging interpretations of shaly formations for determining shale cut-off and mapping of reservoir pore shape from velocity measurements.

FEATURES OF GEOLOGICAL STRUCTURE AND PETROLEUM OIL POTENTIAL OF VICHULOVSKAYA FORMATION WITHIN VOSTOCHNO-KAMENNYI DEPOSIT (WESTERN SIBERIA)

2018 ◽  
pp. 33-39
Author(s):  
R. R. Gabdullin ◽  
O. N. Biryukova ◽  
R. A. Akhmedov
Keyword(s):  
Western Siberia ◽  
Geological Structure ◽  
Test Results ◽  
Geological Information ◽  
Petroleum Oil

The analysis of geological and geophysical materials in order to study the peculiarities of the geological structure of the Vikulov Formation within the Vodorazdel license area was carried out. The presented factual material makes it possible to characterize the geological structure of the investigated area more informatively and for interpreting of seismic materials. The analysis of geological information (GIS and test results) confirms the approved water–oil contact (WOC) level in the investigated section of the deposit, which makes it possible to recalculate its reserves.

Causes of ecosystem transformations variability in lakes of the european part of Russia and Western Siberia (diatom analysis)

2019 ◽  
pp. 79-82
Author(s):  
Lev V. Razumovsky
Keyword(s):  
Western Siberia ◽  
Graphical Analysis ◽  
European Part ◽  
Analysis Method ◽  
Climatic Region ◽  
Diatom Analysis ◽  
Lake Ecosystems ◽  
Distinctive Features ◽  
European Part Of Russia

On the basis of author's graphical analysis method, the typification of lake ecosystems transformation scenarios depending on the size of lakes was carried out. It was confirmed that the type of transformation depends not only on size of the lake, but also on the landscape and climatic region in which it is located. The distinctive features of lake ecosystems transformation types in the European part of Russia and in Western Siberia were analyzed and compared.

Zoya Il'inichna Glezer – life and scientific achievements

2019 ◽  
pp. 318-323
Author(s):  
Zinaida V. Pushina ◽  
Galina V. Stepanova ◽  
Ekaterina L. Grundan
Keyword(s):  
Western Siberia ◽  
Kara Sea ◽  
European Russia ◽  
Great Contribution ◽  
The South ◽  
The Creation ◽  
The 1960S ◽  
Scientific Achievements ◽  
South Of European Russia

Zoya Ilyinichna Glezer is the largest Russian micropaleontologist, a specialist in siliceous microfossils — Cenozoic diatoms and silicoflagellates. Since the 1960s, she systematically studied Paleogene siliceous microfossils from various regions of the country and therefore was an indispensable participant in the development of unified stratigraphic schemes for Paleogene siliceous plankton of various regions of the USSR. She made a great contribution to the creation of the newest Paleogene schemes in the south of European Russia and Western Siberia, to the correlations of the Paleogene deposits of the Kara Sea.

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