197904-198201Technician and planner of the Engineering Group of Drilling No.2 Brigade of Drilling Company.
198201-198607 Assistant Engineer of Production Technology Department of No.2 Drilling Company.
198607-199106 Engineer of Technical Group of Drilling Department of the Authority.
199106-199610, Chief of Quality Section, Senior Engineer, Drilling Division, Administration.
1996 10-200409 Deputy Director and Senior Engineer of Drilling Division of the Authority.
200409-2007 12 Deputy General Manager and Senior Engineer of Drilling Group
2007 12- Deputy General Manager and Professor-level Senior Engineer of Daqing Drilling Engineering Company.