疏水缔合聚合物在酸性环境下的增稠性能评价及分子动力学模拟

IF 0.3 Q4 CHEMISTRY, MULTIDISCIPLINARY Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI:10.13005//ojc/390501
Xianwu Jing, Youquan Liu, Lang Zhou, Pengfei Zhang, Jian Lan, Jie Qi, Shanshan Dai, Hongsheng Lu
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引用次数: 0

摘要

酸性增稠剂是提高碳酸盐岩油气藏油气资源开发能力的必要条件。本文通过引入非离子型疏水单体(AO),设计了一种疏水缔合聚合物(HPA)作为酸增稠剂。实验结果表明,HPA具有优异的耐酸性、抗剪切性和热稳定性,这是由于疏水链逐渐暴露于H2O环境中,从而增强了疏水结合的强度。AO的引入使HPA的旋转平方半径增大,证实了HPA是通过分子间疏水缔合展开的,增强了网络结构。H2O和h30o +分子的均方位移和扩散系数的减小表明,HPA阻碍了H2O和h30o +分子的扩散,疏水链增强了网络结构。研究结果对酸性增稠剂的设计和研究具有一定的指导意义。
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Thickening Performance Evaluation and Molecular Dynamics Simulation on Hydrophobic Associated Polymer in Acid Circumstances
Acid thickener is of necessity for improving the exploitation capacity for oil and gas resources of carbonate reservoirs. Here a hydrophobic associated polymer (HPA) by introducing a nonionic hydrophobic monomer (AO) was designed as the acid thickener. The experimental results demonstrated that HPA suggests excellent acid resistance, shear resistance, and thermal stability attributing to the gradual exposure of hydrophobic chain to H2O circumstances that enhances the strength of hydrophobic association. The square radius of gyration of HPA raises with the introduction of AO confirming the unfold of HPA by intermolecular hydrophobic association, which strengthens the network structure. The decrease of mean square displacement and diffusion coefficient of H2O and H3O+ molecules suggest the enhancement for network structure by hydrophobic chain owing to HPA hindered the diffusion of H2O and H3O+ molecules. These findings are expected to supply a guidance for the design and research on the acid thickener.
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来源期刊
Oriental Journal Of Chemistry
Oriental Journal Of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
自引率
20.00%
发文量
172
期刊介绍: Oriental Journal of Chemistry was started in 1985 with the aim to promote chemistry research. The journal consists of articles which are rigorously peer-reviewed. The journal was indexed in Emerging Science citation index in 2016. The Editorial board member consists of eminent international scientist in all fields of Chemistry. Details of each member and their contact information is mentioned in website. The journal has thorough ethics policies and uses plagiarism detection software(ithenticate) to screen each submission. The journal has recently partnered with publons as a part of making our reviews more transparent. The journal has recently incorporated PlumX for article level matrix. The journal is promoting research on all social and academic platforms mentioned in PlumX guidelines. The journal uses google maps to improve on the geographical distribution of Editorial board members as well as authors.
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