Patent ID: 11959370
Assignee: NCS MULTISTAGE, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 16:
17. A fracturing and tracer-delivery valve assembly for integration within a wellbore string disposed within a hydrocarbon-containing reservoir, comprising:
a valve housing comprising a wall, a passage extending therethrough, and at least one frac port extending through the wall for establishing fluid communication between the passage and the reservoir;
a valve sleeve operatively mounted within the valve housing and displaceable within the passage between a closed position, an open position to open the at least one frac port and define a first fluid pathway whereby fluid is flowable through the passage and into the reservoir via the at least one frac port, and a tracing position defining a second fluid pathway whereby fluid is flowable from the reservoir into the valve assembly and then up to surface; and
a tracer compartment defined within the second fluid pathway and accommodating a tracer material, wherein:
in the closed and open positions, the tracer compartment is sealed and isolated from fluid flowing along the first fluid pathway, and
in the tracing position, the tracer compartment forms part of the second fluid pathway.