1. Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development (Northeast Petroleum University), Ministry of Education, Northeast Petroleum University, Daqing163318, Heilongjiang, China
2. Institute of Unconventional Oil & Gas, Northeast Petroleum University, Daqing163318, China
3. Institute of Engineering Technology, PetroChina Coalbed Methane Company Limited, Xi’an710082, Shanxi, China
4. State Key Laboratory of Petroleum Resources and Prospecting, College of Petroleum Engineering, China University of Petroleum, Beijing102249, China