1. School of Earth and Space Sciences Peking University Beijing China
2. Institute of Oil and Gas Peking University Beijing China
3. Chongqing Gas Field of PetroChina Southwest Oil and Gas Field Company, PetroChina Chongqing China
4. The Third Oil Production Plant of Changqing Oilfield Company, PetroChina Yinchuan China
5. Exploration and Development Research Institute of Changqing Oilfield Company, PetroChina Xi'an China