Home / Standards / SY/T 5587.4-1993 SY/T 5587.4-1993 Abolished 油水井常规修井作业 油层套管封隔器查漏作业规程 Standard Type SY ICS N/A CCS N/A Status Abolished Issue Date 1993-03-27 Implementation 1993-09-01 Centralized Committee 能源部 Issuing Authority 能源部