纳米聚合物微球的封堵性及驱油性能

文章导读

摘要聚合物纳米微球因其对水、温度和矿化度具有良好抵抗力以及较低的使用成本而受到更多关注，作为一项新型调驱技术，可大幅提高油田采油效率。为了更好地认识聚合物纳米微球的驱油效果，开展了聚合物纳米微球的封堵及驱油研究。进行了微通道驱替实验，透过滤膜实验，通过激光粒度仪分析了溶胀后微球的尺寸变化，通过透射电镜观察了微球乳液，并研究了空气中微球乳液与干粉的表面张力。结果显示，在50和100 nm微球的微通道实验中都观察到了微米级别的团聚物，扩大了水分散体系的波及体积，2种纳米聚合物微球都会出现一定程度的团聚行为，具有溶胀性能，还发现了微球和乳化剂、油滴之间的缠结现象。微球乳液中含有的表面活性剂使其表面张力降低，从而提高了驱油效率。对纳米微球的封堵性能和驱油性能进行了研究，对揭示纳米微球的驱油机理和产品的可持续发展与创新具有显著意义。

	Service

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	Email Alert
	RSS
	作者相关文章
	李翔
	瞿瑾
	鞠野
	唐忠利
	王硕
	戚佩瑶
	刘丰刚
	刘晓非

关键词：纳米聚合物微球；驱油；溶胀团聚性能；波及效率

Abstract： Nanoscale polymer microspheres have received more attention because of their good resistance to water, temperature, salinity, and lower operating costs. As a new flooding technology, polymer nanospheres can significantly improve the efficiency of oil field production. In order to better understand the flooding effect of polymer nanospheres, the plugging and flooding of polymer nanospheres were studied. In this paper, the micro-channel displacement experiment and the filter membrane experiment were carried out. The size changes of the microspheres after swelling were analyzed by the laser particle size analyzer, the microsphere emulsion was observed by transmission electron microscope, and the surface tension of the microsphere emulsion and dry powder in the air was studied. The results showed that in the microchannel experiments of 50 nm and 100 nm microspheres, micro-level agglomerates were observed, which enlarged the swept volume of the water dispersion system. Both nanoscale polymer microspheres exhibited a certain degree of agglomeration behavior. Swelling performance, entanglement between microspheres, emulsifiers and oil droplets was also found. The surfactant contained in the microsphere emulsion reduces the surface tension, thereby improving the oil displacement efficiency. In this paper, the plugging performance and oil displacement performance of nanoscale polymer microspheres are studied, which has significant reference for revealing the oil displacement mechanism of nanoscale polymer microspheres and the sustainable development and innovation of products.

Keywords： nanoscale polymer microspheres； oil displacement； swelling agglomeration property； sweep efficiency

Received 2020-10-29;

Fund:

Corresponding Authors: 刘晓非,E-mail:liuxf315@qq.com。 Email: liuxf315@qq.com

About author: 李翔(1978-),男,本科,高级工程师,现从事海上油田稳油控水技术方面的研究。

引用本文:

李翔, 瞿瑾, 鞠野, 唐忠利, 王硕, 戚佩瑶, 刘丰刚, 刘晓非.纳米聚合物微球的封堵性及驱油性能[J]. 化学工业与工程, 2021,38(3): 57-63

Li Xiang, Qu Jin, Ju Ye, Tang Zhongli, Wang Shuo, Qi Peiyao, Liu Fenggang, Liu Xiaofei.Plugging Property and Oil Displacement Performance of Nanoscale Polymer Microspheres[J]. Chemcial Industry and Engineering, 2021,38(3): 57-63

[1] 党小霞. 我国低渗透油藏开发状况及前景分析[J]. 石化技术, 2018, 25(12):149-149
[2] 陈珂, 宁旭波, 姚静萍. 低渗透油藏的注水工艺技术研究[J]. 云南化工, 2020, 47(8):136-137, 140 Chen Ke, Ning Xubo, Yao Jingping. Study on water injection technology of low permeability reservoir[J]. Yunnan Chemical Technology, 2020, 47(8):136-137, 140(in Chinese)
[3] 王骏,杨晓阳.低渗透油藏注水开发存在的问题与改进措施[J].石化技术,2020,27(3):168-169 Wang Jun, Yang Xiaoyang. Problems and improvement measures in waterflooding development of low permeability reservoirs[J]. Petrochemical Technology, 2020, 27(3):168-169(in Chinese)
[4] 赵文景,陈军斌,刘振,等. 纳微米聚合物球调驱特性及封堵的几何约束[J].西安石油大学学报:自然科学版, 2019, 34(6):81-87 Zhao Wenjing, Chen Junbin, Liu Zhen, et al. Profile control and displacement characteristics of nano-micron polymer spheres and geometric constraints of plugging[J]. Journal of Xi'an Shiyou University:Natural Science Edition, 2019,34(6):81-87(in Chinese)
[5] 顾相伶.沉淀聚合制备单分散高分子微球及其自组装[D]. 济南:山东大学,2010 Gu Xiangling. Preparation of monodisperse polymer microspheres by precipitation polymerization and their self-assembly[D]. Jinan:Shandong University, 2010(in Chinese)
[6] 张清林, 张宝军. 驱油用高相对分子质量聚丙烯酰胺的制备[J]. 化学工业与工程, 1999, 16(5):300-304 Zhang Qinglin, Zhang Baojun. Preparation of high relative molecular weight polyacrylamide for enhanced oil recovery[J]. Chemical Industry and Engineering, 1999, 16(5):300-304(in Chinese)
[7] Candau F, Leong Y S, Fitch R M. Kinetic study of the polymerization of acrylamide in inverse microemulsion[J]. Journal of Polymer Science:Polymer Chemistry Edition, 1985, 23(1):193-214
[8] 李大刚, 李云龙, 张青海. 聚丙烯酰胺的反相乳液聚合及其絮凝效果研究[J]. 化学工业与工程, 2012, 29(3):26-30 Li Dagang, Li Yunlong, Zhang Qinghai. Synthesis of polyacrylamide using reverse phase emulsion polymerization and its flocculating functions[J]. Chemical Industry and Engineering, 2012, 29(3):26-30(in Chinese)
[9] 魏俊,刘通义,戴秀兰,等.疏水改性聚丙烯酰胺的反相微乳液聚合[J]. 石油化工, 2018, 47(11):1215-1220 Wei Jun, Liu Tongyi, Dai Xiulan, et al. Hydrophobic modified polyacryamides prepared by reverse microemulsion polymerization[J]. Petrochemical Technology, 2018, 47(11):1215-1220(in Chinese)
[10] 杨晓英, 陈胜男, 芮嘉明, 等. 新型耐温耐盐微凝胶高效驱油剂[J]. 化学工业与工程, 2003, 20(3):135-138, 149 Yang Xiaoying, Chen Shengnan, Rui Jiaming, et al. A novel microgel for EOR in hostile environments[J]. Chemical Industry and Engineering, 2003, 20(3):135-138, 149(in Chinese)
[11] 李桂峰.聚合物微球在延长油田特低渗油藏的研究与应用[J]. 石油地质与工程, 2019, 33(5):80-83 Li Guifeng. Research and application of polymer microspheres in ultra-low permeability reservoirs of Yanchang oilfield[J]. Petroleum Geology and Engineering, 2019, 33(5):80-83(in Chinese)
[12] 武哲, 李小瑞, 王磊, 等. 改性聚丙烯酰胺纳米微球的合成及其在调剖堵水上的应用[J]. 科学技术与工程, 2016, 16(19):208-211, 224 Wu Zhe, Li Xiaorui, Wang Lei, et al. Synthesis and application in profile plugging of modified polyacrylamide nanospheres[J]. Science Technology and Engineering, 2016, 16(19):208-211, 224(in Chinese)
[13] Hua Z, Lin M, Dong Z, et al. Study of deep profile control and oil displacement technologies with nanoscale polymer microspheres[J]. Journal of Colloid and Interface Science, 2014, 424:67-74