CPC E21B 47/138 (2020.05) [E21B 34/063 (2013.01); E21B 2200/08 (2020.05)] | 14 Claims |
1. A downhole sub comprising:
a body defined by a wall extending in an axial direction from a first end to a second end, wherein an inner surface of the wall defines a flow path through the downhole sub and an outer surface of the wall defines an outer diameter of the downhole sub;
a compartment extending from the outer surface into the wall to having a depth less than a thickness of the wall;
a housing removably fixed in the compartment;
one or more mobile devices disposed in the housing, wherein each of the one or more mobile devices comprises a sensor encapsulated in a protective material;
a plug blocking an opening of the housing, wherein the plug is made of a dissolvable material configured to dissolve at a predetermined depth in a wellbore and release the one or more mobile devices into the wellbore
wherein the housing comprises a storage compartment to store the one or more mobile devices, and
wherein the opening extends a length from a top surface of the housing to the storage compartment, and the plug is coupled into the opening, and
a back lid removably fixed in a slot of the housing to close a bottom of the storage compartment.
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