1. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, CHN
2. Mewbourne School of Petroleum and Geological Engineering, University of Oklahoma, Norman, USA
3. Fourth Gas Collecting Station, Changqing Sulige Gas Field Command Center, CNPC, Inner Mongolia, CHN
4. Well Testing and Perforating Services, Daqing Oilfield, CNPC, Daqing, CHN