Application of sodium silicate-based dispersant systems to increase sweep efficiency

Authors: Z.M. Ganeeva, T.Yu. Elizarova, R.Z. Rizvanov, A.V. Mikhailov, M.R. Khisametdinov (TatNIPIneft)
The paper presents the technology to increase sweep efficiency through the use of sodium silicate-based dispersant systems. The mechanism is based on bridging of high-permeability zones of the formation and redistribution of the flows with the resultant improved displacement of the by-passed residual oil contained in low-permeability intervals.

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