1. Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
2. Ministry of Education, Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Qingdao 266580, China
3. Research Institute of Oil Production Engineering, PetroChina Daqing Oilfield Limited Company, Daqing 163453, China