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Rheology Properties and Plugging Performance of Fluorescent Polyacrylamide Microspheres in Fractures
×÷Õß:Hu, LL (Hu, Leilei) ; Bai, BJ (Bai, Baojun) ; Kang, WL (Ka ...

Properties and Extraction for [Ni(NH3)6]2+ of ATPS-a Formed by Aqueous Cationic-Anionic Surfactant Mixtures
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8Â¥: Originally posted by 1399681050 at 2016-02-29 09:21:48
Hu L, Bai B, Kang W, et al. Rheology Properties and Plugging Performance of Fluorescent Polyacrylamide Microspheres in Fractures. Journal of Dispersion Science and Technology, 2016, 37(3): 345-351.
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Rheology Properties and Plugging Performance of Fluorescent Polyacrylamide Microspheres in Fractures
×÷Õß:Hu, LL (Hu, Leilei)[ 1 ] ; Bai, BJ (Bai, Baojun)[ 1 ] ; Kang, WL (Kang, Wanli)[ 1,2 ] ; Ji, YF (Ji, Yanfeng)[ 1 ] ; Fan, HM (Fan, Haiming)[ 1 ] ; Yang, RM (Yang, Runmei)[ 1 ] ; Fan, X (Fan, Xin)[ 3 ]
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
¾í: 37  ÆÚ: 3  Ò³: 345-351
DOI: 10.1080/01932691.2015.1018424
³ö°æÄê: 2016
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Polyacrylamide microspheres have recently drawn great attention in conformance control due to their advantages over traditional gel treatments. One important question that has been raised is whether the tiny particles can be produced from production wells. However, current products are difficult to use for detecting fluids generated by production wells. In this paper, the fluorescent polyacrylamide microspheres were successfully synthesized; they can emit blue fluorescence under ultraviolet irradiation. Their swelling property, fluorescence characteristics, rheology property, creep-recovery property, and plugging performance were evaluated in the laboratory. The results indicated that the microspheres could emit blue fluorescence under ultraviolet irradiation after passing through a fracture model. Their creep-recovery ability after deformation was very high, and their elastic recovery rate extended to 94.1%, which suggests that the microspheres almost recover to their original shape and size after deformation. The transparent fracture model plugging test shows that the microspheres can migrate and plug a fracture with a width of 0.3 mm, which is much smaller than the diameter of the microspheres.
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×÷Õ߹ؼü´Ê:Fluorescent polyacrylamide microspheres; inverse suspension polymerization; plugging performance; transparent fracture model
KeyWords Plus:INVERSE SUSPENSION POLYMERIZATION; SCALE ELASTIC MICROSPHERES; SODIUM ACRYLATE; RECOVERY; CREEP; NANOCOMPOSITES; TECHNOLOGY; KINETICS; GELS
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ͨѶ×÷ÕßµØÖ·: Kang, WL (ͨѶ×÷Õß)
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China.
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ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 1 ] China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 2 ] China Univ Petr, EOR Res Inst, Beijing, Peoples R China
              [ 3 ] Sinopec Henan Petr Engn Design Co Ltd, Zhengzhou, Peoples R China
µç×ÓÓʼþµØÖ·:kangwanli@126.com
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National Natural Science Foundation of China        
21273286
Doctoral Program Foundation of the Education Ministry        
20130133110005
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TAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
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Ñо¿·½Ïò:Chemistry
Web of Science Àà±ð:Chemistry, Physical
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eISSN: 1532-2351
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Rheology Properties and Plugging Performance of Fluorescent Polyacrylamide Microspheres in Fractures
×÷Õß:Hu, LL (Hu, Leilei) ; Bai, BJ (Bai, Baojun) ; Kang, WL (Ka ...

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16Â¥: Originally posted by 1399681050 at 2016-03-24 12:09:56
ÌâÄ¿£ºProperties and Extraction for 2+ of ATPS-a Formed by Aqueous Cationic-Anionic Surfactant Mixtures
ÆÚ¿¯£º Journal of Dispersion Science and Technology
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Properties and Extraction for [Ni(NH3)(6)](2+) of ATPS-a Formed by Aqueous Cationic-Anionic Surfactant Mixtures
×÷Õß:Teng, HN (Teng, Hongni)[ 1 ] ; Wang, XY (Wang, Xiuyun)[ 1 ] ; Hou, YX (Hou, Yixiao)[ 2 ] ; Chen, Y (Chen, Yong)[ 1 ] ; Yang, CY (Yang, Cuiying)[ 1 ] ; Shen, T (Shen, Teng)[ 1 ]
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
¾í: 37  ÆÚ: 6  Ò³: 830-835
DOI: 10.1080/01932691.2015.1065503
³ö°æÄê: 2016
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The properties and extraction for [Ni(NH3)(6)](2+) of anionic aqueous two-phase systems (ATPS-a) that formed in mixtures of cetyltrimethylammonium bromide (CTAB) and excess sodium dodecyl sulfate (SDS) aqueous solutions were investigated. The results showed that the properties and extraction effects were strongly affected by the surfactant concentration, the temperature of system, and the mole fraction of surfactants. The increase of temperature induces narrower phase region and larger phase volume ratio. In addition, [Ni(NH3)(6)](2+) was extracted into the surfactant rich phase with higher distribution coefficient when the liquid crystal had the birefringent properties. Moreover, the distribution coefficient can be improved through reducing the concentration of surfactant from 0.15 to 0.05 mol.L-1 or increasing mole fraction of CTAB from 21.9% to 23.1%. The results showed that ATPS of cationic anionic surfactants was efficient for [Ni(NH3)(6)](2+) extraction with distribution coefficients of 13.5 when the total surfactant concentration was 0.05 mol.L--1,L- mole fraction of CTAB was 21%, and temperature was 34 degrees C.
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×÷Õ߹ؼü´Ê:ATPS; cationic-anionic surfactant; extraction; [Ni(NH3)(6)](2+)
KeyWords Plus:2-PHASE SYSTEM; PLASMID DNA; PURIFICATION; SEPARATION; SULFATE; WATER
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ͨѶ×÷ÕßµØÖ·: Chen, Y (ͨѶ×÷Õß)
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Shandong, Peoples R China.
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ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 1 ] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Shandong, Peoples R China
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 2 ] Tianjin Univ, Coll Chem Engn & Technol, Tianjin 300072, Peoples R China
µç×ÓÓʼþµØÖ·:ychen168@126.com
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Shandong Provincial Natural Science Foundation        
ZR2015BM017
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TAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
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Web of Science Àà±ð:Chemistry, Physical
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