US Patent 12104455 Low-density ceramic floats for use in a downhole environment

Provided is a float for use with a fluid flow control device, a fluid flow control device, a method for manufacturing a fluid flow control device, and a well system. The float, in one aspect, includes a ceramic base material having one or more cavities therein, the ceramic base material and the one or more cavities creating a net density for the float that is between a first density of a desired fluid and a second density of an undesired fluid, such that the float may control fluid flow through a flow control device when encountering the desired fluid or the undesired fluid.