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liuzhezhi木虫 (初入文坛)
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因为学校没买权限，所以求助。不胜感激 New Insights into the Gelation Behavior of Polyethyleneimine Cross-linking Partially Hydrolyzed Polyacrylamide Gels Research on the Gelation Performance of Low Toxic PEI Cross-Linking PHPAM Gel Systems as Water Shutoff Agents in Low Temperature Reservoirs |
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小小顽主
金虫 (著名写手)
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【答案】应助回帖
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liuzhezhi: 金币+4, ★★★★★最佳答案, 谢谢你 2013-08-25 10:42:01
liuzhezhi: 金币+4, ★★★★★最佳答案, 谢谢你 2013-08-25 10:42:01
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Research on the Gelation Performance of Low Toxic PEI Cross-Linking PHPAM Gel Systems as Water Shutoff Agents in Low Temperature Reservoirs 作者: Jia, H (Jia, Hu)[ 1 ] ; Pu, WF (Pu, Wan-Fen)[ 1 ] ; Zhao, JZ (Zhao, Jin-Zhou)[ 1 ] ; Jin, FY (Jin, Fa-Yang)[ 1 ] 来源出版物: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 卷: 49 期: 20 页: 9618-9624 DOI: 10.1021/ie100888q 出版年: OCT 20 2010 被引频次: 4 (来自 Web of Science) 引用的参考文献: 22 [ 查看 Related Records ] 引证关系图 摘要: Using gel as the water shutoff agent has been widely reported in the aspect of enhanced oil recovery (EOR) of the development of mature oil fields. Cross-linkers such as chromium(III) acetate and phenol formaldehyde are commonly used, but they are toxic. Today, use of low toxic polyethyleneimine (PEI) cross-linking a copolymer of acrylamide and tert-butyl acrylate (PAtBA) as the water shutoff gel is reported more but is mainly focused on its theoretical research and applications in high temperature reservoirs. Because of the defects of the chromium(III) acetate and phenol formaldehyde cross-linkers, the gelation performance of PEI/partially hydrolyzed polyacrylamide (PHPAM) gel systems at low temperature (40 degrees C) is discussed in this paper. The results show that the gelation time and strength of the PEI/PHPAM gel system can be perfectly controlled by adjusting the PHPAM concentration, the molecular weight, the PEI concentration, and the total dissolved solids. The polymer concentration and molecular weight can affect not only the gelation time and the gel strength but also its stability. Among them the polymer concentration is the most important factor that affects the gel stability. For the low temperature reservoirs, the most common used chromium(111) acetate/PHPAM gel system has only around 5 h of gelation time at 40 degrees C to get a high gel strength. However, the PEUPHPAM gel system can achieve a much longer gelation time. Polymer gels formulated with a combination of 1.5 wt % PHPAM and added 0.3-0.8 wt % PEI provide a gelation time between 15 h and 9 days, and the maximum gel strength could reach code I. This study suggests that the low toxic PEI/PHPAM gel system can be used in low temperature reservoirs. 入藏号: WOS:000282727300006 文献类型: Article 语种: English KeyWords Plus: POLYMER 通讯作者地址: Jia, H (通讯作者) SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China. 地址: [ 1 ] SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China 电子邮件地址: tiger-jia@163.com 基金资助致谢: 基金资助机构 授权号 Key Technologies R&D Program of China 2008ZX05049-05-03 [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 R&D Program of China (No. 2008ZX05049-05-03). The authors would like to thank Dr. Yula Tang of Chevron Global Upstream and Gas for his careful editing of the English and his valuable suggestions for preparing this paper. The authors express their appreciation to 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: 661KN ISSN: 0888-5885 |
3楼2013-08-24 20:02:22
小小顽主
金虫 (著名写手)
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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
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
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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 |
2楼2013-08-24 20:00:43
liuzhezhi
木虫 (初入文坛)
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4楼2013-08-25 10:28:10