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On the Development of an Effective Pressure Driving System for Ultra-Low Permeability Reservoirs

Yapu Zhang1,2, Zhengming Yang1,2, Dajian Li3, Xuewei Liu1, Xinli Zhao1,2,*

1 Research Institute of Petroleum Exploration & Development, PetroChina, Beijing, 100083, China
2 College of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
3 Oil and Gas Technology Research Institute of PetroChina Changqing Oilfield Company, Xi’an, 070000, China

* Corresponding Author: Xinli Zhao. Email:

Fluid Dynamics & Materials Processing 2021, 17(6), 1067-1075.


Given its relevance to the exploitation of ultra-low permeability reservoirs, which account for a substantial proportion of the world’s exploited and still unexploited reserves, in the present study the development of an adequate water injection system is considered. Due to the poor properties and weak seepage capacity of these reservoirs, the water injection pressure typically increases continuously during water flooding. In this research, the impact on such a process of factors as permeability, row spacing, and pressure gradient is evaluated experimentally using a high-pressure large-scale outcrop model. On this basis, a comprehensive evaluation coefficient is introduced able to account for the effective driving pressure.


Cite This Article

Zhang, Y., Yang, Z., Li, D., Liu, X., Zhao, X. (2021). On the Development of an Effective Pressure Driving System for Ultra-Low Permeability Reservoirs. FDMP-Fluid Dynamics & Materials Processing, 17(6), 1067–1075.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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