Removal of colloidal precipitation plugging with high-power ultrasound | |
Mo LY1; Sun WHZ2; Jiang S3; Zhao XZ4; Ma HL(马海玲)5; Liu BZ6; Feng L6 | |
发表期刊 | ULTRASONICS SONOCHEMISTRY |
2020-12-01 | |
卷号 | 69页码:7 |
ISSN | 1350-4177 |
摘要 | Petroleum is a continuous and dynamically stable colloidal system. In the process of oil extraction, transportation, and post-treatment, the stability of the petroleum sol system is easily destroyed, resulting in asphaltenes precipitation that can make pore throat, oil wells, and pipelines blocked, thereby damaging the reservoir and reducing oil recovery. In this paper, removing near-well plugging caused by asphaltene deposition with high power ultrasound is investigated. Six PZT transducers with different parameters were used to carry out the experimental study. Results show that ultrasonic frequency is one important factor for removing colloidal precipitation plugging in cores, it could not be too high nor too low. The optimum ultrasonic frequency is 25 kHz; Selecting transducers with a higher power is an effective way to improve the removal efficiency. The optimum ultrasonic power is 1000 W. With the increase of ultrasonic treatment time, the recovery rate reaches the maximum and tends to be stable. ultrasonic processing time should be controlled within 120 min. Besides, three methods - ultrasonic treatment alone, chemical injection alone, and ultrasound-chemical method - for removing colloidal precipitation plugging are compared. Results indicate that the ultrasound-assisted chemical method is better than chemical injection alone or ultrasonic treatment alone to remove colloidal sediment in the core. Finally, the mechanism of the ultrasonic deplugging technique is analyzed from three aspects: cavitation effect, the thermal effect, and mechanical vibration. |
关键词 | Colloidal precipitation Ultrasound Plugging |
DOI | 10.1016/j.ultsonch.2020.105259 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000567794500008 |
关键词[WOS] | ENHANCED OIL-RECOVERY ; OF-THE-ART ; WATER ; FRAMEWORK ; PROGRESS ; EOR |
WOS研究方向 | Acoustics ; Chemistry |
WOS类目 | Acoustics ; Chemistry, Multidisciplinary |
资助项目 | National Natural Science Foundation of China[51908211] ; Guangdong Provincial Natural Science Fund[2017A030313321] |
项目资助者 | National Natural Science Foundation of China ; Guangdong Provincial Natural Science Fund |
论文分区 | 一类 |
力学所作者排名 | 1 |
RpAuthor | Ma, Hailing |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/85220 |
专题 | 流固耦合系统力学重点实验室 |
作者单位 | 1.Univ New South Wales, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia; 2.Tongji Univ, Sch Med, Shanghai 200082, Peoples R China; 3.Xian Univ Architecture & Technol, Sch Resources Engn, Xian, Shaanxi, Peoples R China; 4.Beijing Normal Univ, MOE, Key Lab Environm Change & Nat Disaster, Beijing 100000, Peoples R China; 5.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 6.Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Mo LY,Sun WHZ,Jiang S,et al. Removal of colloidal precipitation plugging with high-power ultrasound[J]. ULTRASONICS SONOCHEMISTRY,2020,69:7. |
APA | Mo LY.,Sun WHZ.,Jiang S.,Zhao XZ.,Ma HL.,...&Feng L.(2020).Removal of colloidal precipitation plugging with high-power ultrasound.ULTRASONICS SONOCHEMISTRY,69,7. |
MLA | Mo LY,et al."Removal of colloidal precipitation plugging with high-power ultrasound".ULTRASONICS SONOCHEMISTRY 69(2020):7. |
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