2. 1984-08-0 1 Assistant Engineer, Underground Mining Research Institute, Daqing Bureau
3. 1987-09-0 1 Engineer, First Room, Underground Mining Research Institute, Daqing Bureau
4.1990-10-01Senior Engineer, Room 1, Mining Institute, Daqing Bureau
5.1992-10-01Deputy Director of Mine Research Room 1 of Daqing Bureau
6. 1993-04-0 1 Director of Comprehensive Planning Office of Research Institute of Mining Bureau of Daqing Bureau
7.1996-10-01Deputy Chief Engineer of Daqing Oil Production Technology Research Institute
8.2000-02-0 1 Deputy Chief Engineer of Research Institute of Daqing Oilfield Co., Ltd.
9.2003-0 1-0 1 Deputy Chief Engineer of Daqing Oilfield Oil Production Engineering Research Institute
10, February 2006 -0 10 Chief Engineer of Hulunbeier Branch of Daqing Oilfield