1. Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu China
2. Research Institute of Natural Gas Technology PetroChina Southwest Oil and Gasfield Company Chengdu China
3. Geological Exploration and Development Research Institute Chuanqing Drilling Engineering Co. Ltd, CNPC Chengdu China
4. State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum (Beijing) Beijing China