Patent ID: 11866646
Assignee: CIDRA CORPORATE SERVICES INC.
Field: Civil engineering (Other fields)
Classification: CPC C  E | IPC C  E

Claim 0:
1. A method comprising:
providing a proppant mixture in a well, the proppant mixture having functionalized polymer proppants having mechanical structures configured to provide a mechanical or physical function in a well to hold open fissures or pathways created in formations caused by well fracking to allow a release of fluids from the well, wherein the fluids are hydrocarbons or water, each functionalized polymer proppant including an inner bead having an outer surface with a respective coating made of a functionalized polymer;
responding, by first functionalized polymer proppants with first functionalized polymer coatings of the functionalized polymer proppants, to a hydrocarbon released from the well;
providing, by the first functionalized polymer proppants, a first functionalized polymer as a first chemical taggant or chemical taggant compound containing an indication about the hydrocarbon released from the well;
responding, by second functionalized polymer proppants with second functionalized polymer coatings of the functionalized polymer proppants, to at least a different fluid other than the hydrocarbon released from the well; and
providing, by the second functionalized polymer proppants, a second functionalized polymer as a second chemical taggant or chemical taggant compound containing a corresponding indication about the different fluid released from the well.