1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu610213, China
2. National Energy R&D Center of High Sulfur Gas Exploitation, Chengdu610213, China
3. High Sulfur Gas Exploitation Pilot Test Center, CNPC, Chengdu610213, China
4. PetroChina Southwest Oil & Gasfield Company, Chengdu610213, China