Patent ID: 11965417
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E  G

Claim 9:
10. An apparatus comprising:
a sensor assembly adapted to be integrated into a casing to be positioned in a wellbore formed in a subsurface formation, wherein the sensor assembly comprises,
a housing;
a magnet located within the housing;
a magnetic sensor located within the housing to measure a magnetic measurement resulting from a force between the magnet and magnetic particles flowing with a cement slurry inside the casing from a reverse cementing;
a sensor plug having a side with a non-flat shape that is to be in contact with the cement slurry flowing in the casing of the wellbore; and
a processor communicatively coupled to the magnetic sensor and configured to,
determine whether the magnetic measurement exceeds a magnetic threshold; and
transmit a signal to an actuator to stop flow of the cement slurry down an annulus between the casing and the subsurface formation, in response to a determination that the magnetic measure exceeds the magnetic threshold.