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Water-blocking agent — ESN

Water-blocking agent — ESN®

Area of application

Intensification of oil production

-17%

decrease in water cut

Zonal stimulation

+189%

increase in oil rate

Advantages

Selective blocking of water zones
Selective blocking of water zones
Reversible blocking effect
Reversible blocking effect
Rock surface Wettability modification
Rock surface wettability modification
Environment-friendly
Environment-friendly
High thermal stability
High thermal stability
Advantages

Innovation

ESN®

Emulsion system with supercharged nanoparticles

Regular emulsion Regular emulsion
Hydrophobic ESN Hydrophobic ESN®
Hydrophilic ESN Hydrophilic ESN®
Innovation

Results of application in carbonates

-12%
decrease in water cut
+189%
increase in oil rate
585 days
average duration of effect

Dynamics of well parameters

Dynamics of well parameters
m3/dayLiquid rate
t/dayOil rate
%Water cut