PetroChina Changqing Oilfield Company Xi'an 710018 China;
National Engineering Laboratory of Low Permeability Oil and Gas Field Exploration and Development Xi'an 710018 China;
Research Institute of Exploration and Development PetroChina Changqing Oilfield Company Xi'an 710018 China;
Hubei Cooperative Innovation Center of Unconventional Oil and Gas(Yangtze University Wuhan 430000 China;
Exploration Department PetroChina Changqing Oilfield Company Xi'an 710018 China;