Wind-Speed Measurements over Land Using a Doppler Profiler with a 35-GHz Operating Range

Izvestiya, Atmospheric and Oceanic Physics - In this paper we describe a technique for measuring the tropospheric wind profile using a 35-GHz Doppler profiler. The parameters of the equipment and...     

Capillary End Effects in Reservoirs with Heterogeneous Wettability

Doklady Earth Sciences - A new type of capillary end effect in oil and gas reservoirs due to heterogeneous wettability has been justified. This type of capillary end effect is not related to the...     

Effect of Asphaltenes on Wettability of Gas and Oil Saturated Reservoir Rocks

Doklady Earth Sciences - The wettability by asphaltenes of siliciclastic and carbonate drill–cores from oil and gas condensate fields extracted with n-hexane and chloroform was studied. The...     

Physicochemical peculiarities of absorbed oil in core samples of gas condensate deposit

The problem of the composition of absorption hydrocarbons and liquid condensate arises in the study of gas condensate reservoirs. From the examples of the gas condensate part of the Karachaganak, Astrakhan, and Yamburg deposits, it is shown that absorption hydrocarbons (absorption oil) contain polar components with S and O atoms in molecules. The differences in the physicochemical properties of absorbed oil and precipitated liquid condensate are revealed, as are the regularities in the composition and properties of the absorbed oil and condensate. The criteria for division of absorption oil and liquid condensate are given.     

Influence of the Component Composition of Adsorbed Oil on the Microstructural Wettability of Hydrocarbon Reservoirs

Doklady Earth Sciences - The physicochemical mechanism of the development of microstructural wettability in oil and gas reservoirs is experimentally justified. It is shown that this mechanism is...     

Impact of the scale factor on mobilization of residual oil: A laboratory experiment

Experimental data on residual oil mobilization in laboratory simulation of oil displacement by water demonstrate the impact of the scale effect on this process reflected in the value of residual oil mobilization and displacement thresholds. It is established that residual oil saturation decreases with an increase in the model size used. It is shown that the sizes of clusters of the trapped oil phase correlate with the size of the laboratory model.