1. CNPC Engineering Technology R&D Co., Ltd, Beijing 102206, PR China
2. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
3. Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, PR China
4. A Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian 116024, PR China