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【答案】应助回帖
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liuzhezhi: 金币+1, ★★★★★最佳答案, 很有帮助 2013-08-25 10:29:41
oven1986: 检索EPI+1, 感谢应助！ 2013-08-25 10:49:00
New Insights into the Gelation Behavior of Polyethyleneimine Cross-Linking Partially Hydrolyzed Polyacrylamide Gels
作者: Jia, H (Jia, Hu)[ 1 ] ; Zhao, JZ (Zhao, Jin-Zhou)[ 1 ] ; Jin, FY (Jin, Fa-Yang)[ 1 ] ; Pu, WF (Pu, Wan-Fen)[ 1 ] ; Li, YM (Li, Yong-Ming)[ 1 ] ; Li, KX (Li, Ke-Xing)[ 1 ] ; Li, JM (Li, Ji-Mao)[ 2 ]
来源出版物: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 卷: 51 期: 38 页: 12155-12166 DOI: 10.1021/ie301818f 出版年: SEP 26 2012
被引频次: 1 (来自 Web of Science)
引用的参考文献: 53 [ 查看 Related Records ] 引证关系图
摘要: Using polymer gel is still the mainstream technique of the chemical method for water shut-off in mature oilfield development. The gelation performance of polyethyleneimine (PEI) cross-linking partially hydrolyzed polyacrylamide (HPAM) gel was systematically investigated in this paper by using three types of molecular weight (M-w) HPAM. Results show that the gelant solution (the fluid solution of cross-linker and polymer that exists before gelation) can slightly gel even at room temperature and form a rudimentary 3D network structure for protecting the subsequent gelling. The main factors, including HPAM, PEI concentrations, HPAM M-w and total dissolved solids (TDS) to affect the gelation performance are also discussed. The gelation time is around 18-72 h at 65 degrees C, which is much longer than the commonly used chromium(III)-acetate cross-linking HPAM gel system. The gelation performance of the PEI/HPAM gel system is improved after flowing through porous media and shows the adverse law for a porous media sheared chromium(III)-acetate or phenol-formaldehyde cross-linking HPAM gel system. Atomic force microscopy (AFM) scanning results show that the microstructure of PEI/HPAM gel distributes a lot of cavities. Compared to the original premature gel (code B), the cavities are more uniform and regular after flowing through porous media. In addition, this study revealed that the presence of free oxygen in the uniform cavities of the weak crosslinked gel after flowing through porous media can accelerate the oxidation reaction to produce a darker brown gel. It also discusses how these new findings will affect the application of the gel system in the oil field.
入藏号: WOS:000309100100001
文献类型: Article
语种: English
KeyWords Plus: WATER-SHUTOFF TREATMENTS; PREFORMED PARTICLE GEL; HIGH-TEMPERATURE; POROUS-MEDIA; CONFORMANCE CONTROL; MOLECULAR-WEIGHT; LINKED GEL; PERFORMANCE; SYSTEM; RESERVOIRS
通讯作者地址: Jia, H (通讯作者) SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu, Peoples R China.
地址: [ 1 ] SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu, Peoples R China
[ 2 ] Sinopec, NE Oil & Gas Branch, Changchun, Peoples R China
增强组织信息的名称
Sinopec
电子邮件地址: tiger-jia@163.com; zhaojz@swpu.edu.cn
基金资助致谢:
基金资助机构 授权号
Key Technologies Research and Development Program of China 2011ZX05049-004-004-008
Sichuan Provincial Youth Science and Technology Fund 2012JQ0010
Program for New Century Excellent Talents in University NCET-11-1062
Southwest Petroleum University
[显示基金资助信息][隐藏基金资助信息]
This work was financially supported by the Key Technologies Research and Development Program of China (Grant 2011ZX05049-004-004-008), Sichuan Provincial Youth Science and Technology Fund (Grant 2012JQ0010), Program for New Century Excellent Talents in University (Grant NCET-11-1062), and the National "Top100 Doctoral Dissertation" Cultivation Fund of the Southwest Petroleum University to Hu Jia. The authors express their sincere appreciation to the technical reviewers for their constructive comments.
出版商: AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Web of Science 类别: Engineering, Chemical
研究方向: Engineering
IDS 号: 010NC
ISSN: 0888-5885 |
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