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Труды Института механики им. Р.Р. Мавлютова
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Proceedings of the Mavlyutov Institute of Mechanics


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Akhmetov A.T., Sobanova O.B., Sametov S.P. Emulsions generation in void space of the micromodel, their rheological properties Proceedings of the Institute of Mechanics of Ufa Branch of RAS. 8 (2011). 92–107.
2011. Vol. 8. Issue 1, Pp. 92–107
URL: http://proc.uimech.org/uim2011.1.008
DOI: 10.21662/uim2011.1.008
Emulsions generation in void space of the micromodel, their rheological properties
Akhmetov A.T.∗,∗∗, Sobanova O.B.∗∗∗, Sametov S.P.∗,∗∗
Institute of Mechanics, Ufa
∗∗Center for Micro- and Nanoscale Dynamics of Dispersed Systems, Bashkir State University, Ufa
∗∗∗OJSC Institute Neftepromkhim, Kazan

Abstract

When afraction of scavenger petroleum reserves is steadily growing the use of methods for oil recovery increasing and intensifying of oil fields development plays a decisive role in maintaining the level of oil production. One of the methods used to increase oil recovery by isolating water inflows is the injection of a surfactant composition on a hydrocarbon base, SNPCH-9633 reagent. The action of the reagent is based on the formation in washed zones of of highly viscous gel-like W/O emulsions due to the crushing of aqueous phasedroplets. Thus W/O emulsion generated in the pore space of the formationblocks the water-saturated interlayers which leads to a reduction in water cut of the produced well production by 10-30% depending on the application conditions. The method is selective technological and easy to implement. The reagent SNPCH-9633 has a low viscosity and does not change its properties when stored over a wide temperature range for a long time. In this work using the visualization methods the features of emulsion generation during water and reagent movement in a porous structure, the manifestation of the dynamic blocking phenomenon and the rheological properties of emulsions in a wide range of aqueous phase concentrations are studied.