The fiber aggregates are useful, for example, for {TAIL ~ flowback control} in {HEAD ~ wellbores} and reservoirs 
The fiber aggregates are useful , for example , for { TAIL ~ flowback control } in { HEAD ~ wellbores } and reservoirs
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH