1. Key Laboratory of Oil and Gas Drilling and Production Engineering, College of Petroleum Engineering, Yangtze University, Wuhan, China
2. Sulige Research Center, Changqing Oilfield Company, Xi’an, Shanxi, China
3. Low permeability oil and gas field exploration and development of National Engineering, Changqing Oilfield Company, Xi’an, Shanxi, China
4. The Fifth Gas Recovery Plant, Changqing Oilfield Company, Xi’an, Shanxi, China