Development theory and practice of water injection induced fractures in ultra-low permeability reservoirs

被引:0
|
作者
Wang Y. [1 ]
Cheng S. [1 ]
Qin J. [2 ]
Lei Z. [3 ]
An X. [4 ]
Yu H. [1 ]
机构
[1] State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing
[2] State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu
[3] PetroChina Research Institute of Petroleum Exploration & Development, Beijing
[4] No. 7 Oil Production Plant, Changqing Oilfield Company, PetroChina, Xi'an
来源
Zhongguo Kexue Jishu Kexue/Scientia Sinica Technologica | 2022年 / 52卷 / 04期
关键词
Diagnostic method; Numerical simulation; Pressure response characteristic; Ultra-low permeability reservoir; Water injection induced fracture (WIIF); Well pattern adjustment;
D O I
10.1360/SST-2021-0030
中图分类号
学科分类号
摘要
Water injection induced fractures (WIIFs) in ultralow permeability reservoirs lead to a rapid decline in the oil production in the direction of fracture and poor effects for a lateral oil well. The initiation and propagation of WIIFs aggravate the contradictions between the injectors and producers, which greatly reduce the waterflooding efficiency. In view of the waterflooding development of ultralow permeability reservoir with natural microfractures, the progress in WIIF characterization technology at home and abroad is clarified from the aspects of field performance characteristics, flow mechanism, monitoring and identification methods, pressure response behaviors of water injection and production wells, numerical simulation and secondary adjustment of well pattern, and so on. The influence of WIIFs on waterflooding development and well pattern infilling adjustment strategy is comprehensively elaborated. The research on the experimental mechanism, WIIF characterization, and development adjustment should be strengthened. The methodology presented in this paper can guide waterflooding development of similar reservoirs in China. © 2022, Science Press. All right reserved.
引用
收藏
页码:613 / 626
页数:13
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