1. National Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao 266580, Shandong, China
2. Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education., Qingdao 266580, Shandong, China
3. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China