Physical Simulation Experimental Technology and Mechanism of Water Invasion in Fractured-Porous Gas Reservoir: A Review

Mengfei Zhou, Xizhe Li, Yong Hu, Xuan Xu, Liangji Jiang and Yalong Li
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Mengfei Zhou: School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
Xizhe Li: Research Institute of Petroleum Exploration & Development, Beijing 100083, China
Yong Hu: Research Institute of Petroleum Exploration & Development, Beijing 100083, China
Xuan Xu: Research Institute of Petroleum Exploration & Development, Beijing 100083, China
Liangji Jiang: Research Institute of Petroleum Exploration & Development, Beijing 100083, China
Yalong Li: School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China

Energies, 2021, vol. 14, issue 13, 1-15

Abstract: In the development process for a fractured-porous gas reservoir with developed fracture and active water, edge water or bottom water easily bursts rapidly along the fracture to the production well, and the reservoir matrix will absorb water, reducing the gas percolation channel and increasing the gas phase percolation resistance of the reservoir matrix, therefor reducing the stable production capacity and recovery efficiency of the gas reservoir. For this reason, this paper investigates physical simulation experimental technology and mechanisms as reported by both domestic and foreign scholars regarding water invasion in fractured-porous gas reservoirs. In this paper, it is considered that the future trend and focus of water invasion experiments will be to establish a more realistic three-dimensional physical model on the basis of fine geological description, combined with gas reservoir well pattern deployment and production characteristics, and to fully consider the difference between horizontal and vertical water invasion along the reservoir side; at the same time, dynamic parameters such as model pressure field and water saturation field can be obtained in real time. Based on this understanding of the water invasion mechanism of fractured-porous gas reservoirs, we propose the next research direction and the development countermeasures such as water controls, drainage, and dissolved water seals and water locks to combat water invasion in reservoirs, along with the injection of gas to replenish formation energy, etc., so as to slow down and control the influence of water invasion.

Keywords: fractured-porous gas reservoir; water invasion mechanism; experimental technique; enhanced gas recovery; development countermeasures (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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