1. The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, China
2. CNPC Engineering Technology R&D Company Limited, Beijing, China
3. Sichuan Weldon Chemicals CO.Ltd, Guanghan, China
4. Engineering Technology Research Institute of Huabei Oilfied Company, Renqiu, China
5. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua, China
6. China Coal Technology Engineering Group Chongqing Research Institute, Chongqing, China