Selective waterproofing reagent ALPHAIZOL-S
Designed to create a viscous and stable solution. Redistributes filtration flows and connects low-permeability zones to development due to selective blocking of highly-permeable and water-saturated zones.
Shows a pronounced selective effect: contact with oil dilutes the composition based on the reagent and it is removed from the formation, and contact with formation water forces the composition to rapidly gain viscosity, which creates strong resistance to filtering new volumes of water.