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Recommendations on the Residual Water Saturation Modeling in Laboratory Conditions upon Whole Core Samples. P. 50–55

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Yur’ev Aleksandr Vyacheslavovich
Institute of Oil and Gas, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
Chizhov Denis Borisovich
Research Center of Core and Reservoir Fluids, Branch of LLC “LUKOIL-Engineering” “PermNIPIneft” (Perm, Russia)


The paper describes the methodology, procedure and results of the studies conducted in laboratory conditions in the residual water saturation modeling in various ways as well as the results of the studies and conclusions of translation of petrophysical data. The mission of the paper is petrophysical data acquisition on the basis of the laboratory research, correlation, analysis and development of recommendations for the residual water saturation modeling by the most suitable method for the laboratories involved in mass stream oriented research of a whole core with preserved diameter of drilling. For the research the whole core samples with preserved diameter of 100 mm and length of 100 mm from two wells of the Timan- Pechora oil and gas province were selected. The samples were defined by various filter and capacitive features and a type of a pore header. This paper is timely for the core petrophysical research conducting as to date there are no regulations governing the works upon a whole core. We used three methods of the residual water saturation modeling: capillary desaturation, kilning and a capillarimetric method. As a result the data for the research translation and analysis were obtained. On the basis of the study the most convenient method of the residual water modeling for the laboratories involved in mass stream oriented research of a whole core was determined. The method of capillary desaturation is defined as favorite as in comparison with a capillarimetric method it takes less time and more effective than kilning. This method is more effective and cheaper in comparison with the others.


residual water saturation, capillary desaturation, capillarimetric method, whole core samples
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