select thread#, max(sequence#) as "Last_Applied_Log" from v$log_history group by thread#;
select process, status, sequence# from v$managed_standby;
alter database recover managed standby database disconnect from session;
alter database register logfile '/u02/oracle/backup_arch/o1_mf_1_57518_93s5gop2_.arc';
alter database register logfile '/u02/oracle/backup_arch/o1_mf_1_57519_93s5v0pm_.arc';
...
or
you can try to use rman to register a group of them e.g.
RMAN> catalog start with '/u01/oracle/arch/arc';
Shutdown Standby
select process, status, sequence# from v$managed_standby;
alter database recover managed standby database cancel;
shutdown immediate
Restore archivelog from RMAN backup.
restore archivelog from logseq 69124 until logseq 69134;
-- or
restore archivelog from logseq 69135;