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Ma H, Xia S, Sun C, Yu F, Cameron A, Zheng W, Shu Q, Pei H, Han Y. Novel Strategy of Polymers in Combination with Silica Particles for Reversible Control of Oil-Water Interface. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2216-2227. [PMID: 36576434 DOI: 10.1021/acsami.2c19037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hybrid smart emulsification systems are highly applicable in manipulating oil-in-water (O/W) droplets. Herein, novel switchable block polymers containing both zwitterionic and tertiary amine pendent groups were designed and synthesized to combine with charged silica particles to stabilize the O/W emulsion responsive to pH. This study was carried out in O/W emulsions stabilized with the polymer and silica particles under different pH conditions. The emulsion system was also simulated using molecular dynamics simulation to reveal the mechanism at molecular levels, thus gaining insight into the relationships between the emulsifying properties and the molecular interaction of the mixed system. Upon acidification of the continuous aqueous phase, protonated polymers with excellent hydrophilicity were induced by charged silica particles to cause rapid emulsion coalescence. In alkaline media, the mixed system conversely stabilized the O/W emulsions, cutting polymer consumption by over three-quarters. The emulsification and demulsification can be switched alternately by tuning the pH conditions. The applications exhibited excellent efficiency in separating heavy oil/water emulsions and proved the high conversion rate in emulsion polymerization. Overall, with this novel strategy to relieve tedious modifications on particle surfaces and massive consumption of polymers, the designed responsive emulsification systems can impart intelligent and controllable chemical reactivity to emulsions on demand in a more affordable and sustainable way.
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Affiliation(s)
- Hao Ma
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Shuqian Xia
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Caixia Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Fuce Yu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Alexandre Cameron
- School of Mining and Petroleum Engineering, University of Alberta, Edmonton, AlbertaT6G 1H9, Canada
| | - Wangang Zheng
- Research Institute of Petroleum Engineering, Sinopec Shengli Oilfield Co., Ltd., Dongying, Shandong257067, China
| | - Qinglin Shu
- Research Institute of Petroleum Engineering, Sinopec Shengli Oilfield Co., Ltd., Dongying, Shandong257067, China
| | - Haihua Pei
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao266580, China
| | - You Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
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Wu R, Yan Y, Li X, Tan Y. Preparation and evaluation of double‐hydrophilic diblock copolymer as viscosity reducers for heavy oil. J Appl Polym Sci 2022. [DOI: 10.1002/app.53278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ruonan Wu
- School of Chemistry and Chemical Engineering Shandong University Jinan China
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education Shandong University Jinan China
| | - Yuhan Yan
- School of Chemistry and Chemical Engineering Shandong University Jinan China
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education Shandong University Jinan China
| | - Xingxing Li
- School of Chemistry and Chemical Engineering Shandong University Jinan China
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education Shandong University Jinan China
| | - Yebang Tan
- School of Chemistry and Chemical Engineering Shandong University Jinan China
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education Shandong University Jinan China
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Li L, Liu JW, Chen J, Wang ZZ, Jin X, Dai CL. Mussel-inspired hydrogel particles with selective adhesion characteristics for applications in reservoir fracture control. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Synthesis, characterization and application of dual thermo- and solvent-responsive double-hydrophilic diblock copolymers of N-acryloylmorpholine and N-isopropylacrylamide. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119053] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Liu J, Li L, Xu Z, Chen J, Dai C. Self-growing Hydrogel Particles with Applications for Reservoir Control: Growth Behaviors and Influencing Factors. J Phys Chem B 2021; 125:9870-9878. [PMID: 34431293 DOI: 10.1021/acs.jpcb.1c05289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chemical profile control agents are the key for conducting effective reservoir control to enhance crude oil recovery. Self-growing hydrogel particles have emerged as highly competitive profile control agents as they can grow for control after migrating to deep fractures, exhibiting great potential in long-term adaptive reservoir control. In this work, self-growing hydrogel particles were prepared by mechanical shearing of self-repairing bulk gels constructed by catechol-functionalized partially hydrolyzed polyacrylamide p[AM-AANa-DOPA] and phenolic resin cross-linking agents. After aging for 15 days under the reservoir conditions, the median size of hydrogel particles increased from ∼3.5 to ∼18.0 μm, demonstrating apparent self-growing property and significantly enhanced resistant coefficient in waterflooding. Different factors affecting growth behaviors of hydrogel particles including cross-linking density, chemical re-cross-linking, hydrolysis degree, and molecular weight of the copolymer were studied. The results showed that the cross-linking density affected the strength and toughness of the bulk hydrogel, with appropriate polymer chain mobility facilitating the intermolecular interactions. Quantitative NMR results of the gelation process indicated that chemical re-cross-linking contributed little to the growth of hydrogel particles. Based on the rheological and nanomechanical results, bulk gels prepared by polymers with a lower hydrolysis degree and smaller molecular weight possessed a higher elastic modulus recovery rate, while the corresponding hydrogel particles exhibited stronger adhesion among each other. This work provides new insights into the growth behavior of hydrogel particles, which may help better understand and select a suitable hydrogel system and preparation technology and further promote efficient reservoir control.
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Affiliation(s)
- Jiawei Liu
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao 266580, China.,Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Lin Li
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao 266580, China.,Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Zhongzheng Xu
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao 266580, China.,Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Jia Chen
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao 266580, China.,Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Caili Dai
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao 266580, China.,Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.,State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China
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