1. Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan, Hubei 430100, P. R. China
2. Key Laboratory of Drilling and Production Engineering for Oil and Gas, Yangtze University, Wuhan, Hubei 430100, P. R. China
3. Petroleum Engineering Technology Research Institute, SINOPEC Zhongyuan Oilfield Company, Puyang, Henan 457001, P. R. China
4. Oil & Gas Technology Research Institute, Changqing Oilfield Branch Company, PetroChina, Xi’an, Shanxi 710021, P. R. China