Laboratory Evaluation of the Plugging Performance of an Inorganic Profile Control Agent for Thermal Oil Recovery

被引:3
|
作者
Cheng, Keyang [1 ,2 ]
Liu, Yongjian [1 ]
Qi, Zhilin [2 ]
Tian, Jie [2 ]
Luo, Taotao [2 ]
Hu, Shaobin [1 ]
Li, Jun [2 ]
机构
[1] Northeast Petr Univ, Sch Petr Engn, Daqing 163318, Peoples R China
[2] Chongqing Univ Sci & Technol, Sch Petr & Nat Gas Engn, Chongqing 401331, Peoples R China
关键词
fly ash; steam channeling; injection performance; plugging depth; heavy oil; HEAVY OIL; PARTICLES; DESIGN;
D O I
10.3390/en15155452
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
During the process of steam thermal recovery of heavy oil, steam channeling seriously affects the production and ultimate recovery. In this study, fly ash was used as the plugging agent, and then a series of plugging experiments based on the results of two-dimensional (2D) experiments were conducted to study the effect of plugging the steam breakthrough channels. The experimental results show that the inorganic particle plugging agent made from the fly ash had a good suspension stability, consolidation strength, and injection performance. Because of these characteristics, it was migrated farther in the formation with a high permeability than in the formation with a low permeability, and the plugging rate was greater than 99%. After steam injection, it had a good anti-flush ability and stable plugging performance in the formation. In terms of the oil displacement effect, oil recovery in the formation with a low permeability was effectively improved because of plugging. The results show that the inorganic particle plugging agent could effectively control the steam channeling and it improved the development effect of the heavy oil reservoir.
引用
收藏
页数:10
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