1. Department of Headquarter, Dongxin Oil Production Company, SINOPEC, Dongying, P. R. China
2. Department of Offshore Oil & Gas Engineering, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, P. R. China
3. International QHSE Department, China Petroleum Pipeline Engineering CO., LTD, Langfang, P. R. China
4. Department of Water Injection Technology, Oil Production Technology Institute of Dagang Oilfield, CNPC, Tianjin, P. R. China