1. Key Laboratory of Enhanced Oil & Gas Recovery of Ministry of Education, Northeast Petroleum University, Daqing 163318, P. R. China
2. Daqing International Exploration and Development Company, Daqing 163000, China
3. No. 2 Oil Production Plant, Daqing Oilfield Co., Ltd., Daqing 163000, China
4. Research Institute of Exploration and Development of Daqing Oilfield Company Ltd., Daqing 163000, China