1. State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationSouthwest Petroleum University Chengdu China
2. PetroChina Southwest Oil & Gasfield Company, Shunan Gas Mine Luzhou China
3. Chongqing University of Science and Technology Chongqing China
4. Binggang Group, Dagang Oilfiled Company, PetroChina Tianjing China