**Acknowledgements**

This work was supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China (grant number 2017ZX05037 001); the Demonstration Project of the National Science and Technology Major Project of the Ministry of Science and Technology of China (grant number 2016ZX05062 002 001); and the Science and Technology Major Project of PetroChina (grant number 2016E0611).

*Mechanism, Model, and Upscaling of the Gas Flow in Shale Matrix: Revisit DOI: http://dx.doi.org/10.5772/intechopen.91821*
