Electrically activated adhesive for strengthening of a subterranean wellbore
A wellbore strengthening composition may include a base fluid and at least one polymer functionalized with electrochemically activated groups. A method of treating a wellbore may include emplacing, in at least a selected region of the wellbore, a wellbore strengthening composition including a base fluid and at least one polymer functionalized with electrochemically activated groups. The method may also include emplacing a downhole tool capable of generating a voltage potential in the wellbore and applying a voltage potential in the wellbore with the downhole tool.
1. A method of treating a wellbore, the method comprising:
emplacing in at least a selected region of the wellbore, a wellbore strengthening composition comprising:
a base fluid; and
at least one polymer functionalized with electrochemically activated groups;
emplacing a downhole tool capable of generating a voltage potential in the wellbore; and
applying a voltage potential in the wellbore with the downhole tool.
2. The method of claim 1 , wherein the voltage potential is applied near a wall of the wellbore.
3. The method of claim 1 , wherein the voltage potential is applied at multiple distinct zones of the wellbore.
4. The method of claim 1 , wherein the voltage potential applied is at least about−0.5V.
5. The method of claim 1 , wherein the voltage potential is applied for at least one minute.
6. The method of claim 1 , wherein the voltage potential is applied for at most one hour.
7. The method of claim 1 , wherein the at least one polymer functionalized with electrochemically activated groups is a dendrimer.
8. The method of claim 1 , wherein the at least one polymer functionalized with electrochemically activated groups is a poly(amidoamine) dendrimer.
9. The method of claim 1 , wherein the electrochemically activated groups are carbene precursors.