Well treatment fluid having an acidic nanoparticle based dispersion and a polyamine
A well treatment fluid is provided having an acidic nanosilica dispersion and a polyamine activator. The acidic nanosilica dispersion and the polyamine activator may form a gelled solid after interaction over a period. Methods of reducing water production using the well treatment fluids are also provided.
1. A treatment fluid for reducing water production in a treatment zone in a wellbore, comprising:
an acidic nanosilica dispersion; and
a polyethylene polyamine, the polyethylene polyamine selected to form a gelled solid after interaction with the acidic nanosilica dispersion for a period.
2. The treatment fluid of claim 1 , wherein the period comprises a range of 0.5 hours to 24 hours.
3. The treatment fluid of claim 1 , consisting of the acidic nanosilica dispersion and the polyethylene polyamine.
4. The treatment fluid of claim 1 , wherein the polyethylene polyamine comprises at least one of diethylenetriamine, ethylenediamine, tetraethylenepetamine (TEPA), triethylentetramine, pentaethylenehexamine (PEHA), and hexaethyleneheptamine (HEHA).
5. The treatment fluid of claim 1 , wherein the polyethylene polyamine comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 20 v/v %.
6. The treatment fluid of claim 1 , wherein the acidic nanosilica dispersion is stabilized by a cationic polymer.
7. The treatment fluid of claim 1 , wherein the acidic nanosilica dispersion is stabilized by a carboxylic acid.
8. The treatment fluid of claim 1 , wherein the acidic nanosilica dispersion is stabilized by acetic acid.
9. A solid gelled material useful for reducing water production where the solid gelled material forms by introducing an acidic nanosilica dispersion and a polyethylene polyamine to a treatment zone, the acidic nanosilica dispersion comprising amorphous silicon dioxide and water, such that the nanosilica dispersion and the polyethylene polyamine contact the treatment zone having an elevated temperature for a period such that the solid gelled material forms.
10. The solid gelled material of claim 9 , wherein the polyethylene polyamine comprises at least one of diethylenetriamine, ethylenediamine, tetraethylenepetamine (TEPA), triethylentetramine, pentaethylenehexamine (PEHA), hexaethyleneheptamine (HEHA).
11. The solid gelled material of claim 9 , wherein the polyethylene polyamine comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 20 v/v %.
12. The solid gelled material of claim 9 , wherein the polyethylene polyamine is introduced separately from the acidic nanosilica dispersion to the treatment zone.
13. The solid gelled material of claim 9 , wherein the polyethylene polyamine and the acidic nanosilica dispersion are introduced simultaneously to the treatment zone.
14. The solid gelled material of claim 9 , wherein the acidic nanosilica dispersion has an acidic pH, wherein the pH value is increased after contact with the polyethylene polyamine.