Developing water shut-off techniques based on low-modulus liquid glass (polymer silicate concentrate)

Yunusov I.M. Management company “Sheshmaoil” LLC Almetyevsk
Isaev A.A.
Novikov M.G.
Takhautdinov R.Sh.
Malykhin V.I.
Sharifullin A.A.
DOI: 10.24412/2076-6785-2023-2-63-66

This article reviews the studies related to the permeability properties of core samples from terrigenous reservoirs when treated with a polymer-silicate concentrate (PSC): permeability values for water before and after the treatment have been determined, and the results of experimental works and tests have been presented. In the course of research we have obtained the residual resistance factor for water as a ratio of the initial permeability for water obtained before the reagent injection to its remaining value (after the treatment). The conclusions and guidelines for
the application of the PSC technology have been presented.

Materials and methods
Materials: a unit to determine the oil displacement factor and phase permeabilities on standard core samples under simulated reservoir conditions, core samples of terrigenous reservoirs, the PSC margin, samples of formation water and hydrochloric acid. Methods: removal of infiltrated water, evacuation, saturation with a saline water, determination of effective permeability for water, injection of PSC margins, determination of final permeability.

terrigenous reservoirs, water flooding of oil-bearing formations, permeability properties, alteration (redistribution) of filtration flows, conformance control
Download article