Li, BinglinSu, YuliangHusein, MaenAguilera, RobertoLu, Mingjing2021-04-112021-04-112021-04-08Binglin Li, Yuliang Su, Maen Husein, Roberto Aguilera, and Mingjing Lu, “Temporal Scale Analysis of Gas Flow in Tight Gas Reservoirs considering the Nonequilibrium Effect,” Geofluids, vol. 2021, Article ID 8860977, 12 pages, 2021. doi:10.1155/2021/8860977http://dx.doi.org/10.1155/2021/8860977http://hdl.handle.net/1880/113223https://dx.doi.org/10.11575/PRISM/38716The fractal geometry, anisotropy, discontinuity, and non-Darcy flow of tight reservoirs exert a significant effect on well production performance. In this study, the reservoir fractal geometry is represented by exponential functions on the basis of microseismic data, while the discontinuity of the fractures is presented as a nonequilibrium effect. The impact of the nonequilibrium effect and the low velocity non-Darcy flow on the temporal scale of the wellbore pressure is predicted herein. Results showed that the time scale analysis accurately simulates gas flow in a tight reservoir. The wellbore pressure gradually increases, whereas the pressure in the matrix lags when the nonequilibrium effect is considered. The wellbore pressure is affected in the early period by the nonequilibrium effect. However, at the later stage, the pressure in the matrix is mainly affected by the non-Darcy flow. When the non-Darcy flow is dominant, the pores without gas flowing through are better presented.Journal Article2021-04-11enCopyright © 2021 Binglin Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.