Patent ID: 11898438
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 11:
12. A method to monitor downhole fluid displacement, the method comprising:
flowing a non-reacting fluid into a wellbore having a metallic sealant deployed along a section of the wellbore;
exposing the metallic sealant to a reacting fluid to initiate a galvanic reaction;
measuring, with a downhole temperature sensor deployed in the wellbore, a change in temperature due to heat released by the metallic sealant as a result of the galvanic reaction;
determining an amount of expansion of the metallic sealant based on the change in the temperature; and
determining a displacement of the non-reacting fluid based on the amount of expansion of the metallic sealant and as a result of the galvanic reaction.