Back to results
US 10,767,094 B2Granted
Nanosilica dispersion well treatment fluid
AssigneeSaudi Arabian Oil Company
InventorsVikrant Wagle, Abdullah Al-Yami
Life of this patent
Estimating the term…
Abstract
A well treatment fluid is provided having an acidic nanosilica dispersion and an alkanolamine. The nanosilica dispersion and the alkanolamine may form a gelled solid after interaction over a period. Methods of reducing water production using the well treatment fluids are also provided.
Claims6
A treatment fluid for reducing water production in a treatment zone in a wellbore, comprising:
- an acidic nanosilica dispersion, the acidic nanosilica dispersion comprising amorphous silicon dioxide, water, and acetic acid;
- and
- an alkanolamine, the alkanolamine selected to form a gelled solid after interaction with the acidic nanosilica dispersion for a period,
- wherein the acidic nanosilica dispersion has a pH of less than 7 before interaction with the alkanolamine and a pH of at least 9 after the treatment fluid contacts the treatment zone in the carbonate formation.
1 more element
Dependencies are inferred from the claim text.