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烷基酚的油水分配系数影响因素研究

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文章导航 > 地质力学学报 > 2022 > 28(2): 217-225

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孙砚泽, 彭晓波, 文志刚, 何文祥, 严刚, 刘栩, 钟鸣, 田伟超. 2022. 烷基酚的油水分配系数影响因素研究. 地质力学学报, 28(2): 217-225. doi: 10.12090/j.issn.1006-6616.2021176
引用本文: 孙砚泽, 彭晓波, 文志刚, 何文祥, 严刚, 刘栩, 钟鸣, 田伟超. 2022. 烷基酚的油水分配系数影响因素研究. 地质力学学报, 28(2): 217-225. doi: 10.12090/j.issn.1006-6616.2021176
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SUN Yanze, PENG Xiaobo, WEN Zhigang, HE Wenxiang, YAN Gang, LIU Xu, ZHONG Ming, TIAN Weichao. 2022. Study on influencing factors of oil-water partition coefficient of phenolic compounds. Journal of Geomechanics, 28(2): 217-225. doi: 10.12090/j.issn.1006-6616.2021176
Citation: SUN Yanze, PENG Xiaobo, WEN Zhigang, HE Wenxiang, YAN Gang, LIU Xu, ZHONG Ming, TIAN Weichao. 2022. Study on influencing factors of oil-water partition coefficient of phenolic compounds. Journal of Geomechanics, 28(2): 217-225. doi: 10.12090/j.issn.1006-6616.2021176
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烷基酚的油水分配系数影响因素研究

  • 1.

    油气资源与勘探技术教育部重点实验室(长江大学)，湖北 武汉 434100

  • 2.

    油气地球化学与环境湖北省重点实验室(长江大学)，湖北 武汉 434100

  • 基金项目:
    国家自然科学基金(41872144)；中国石油科技创新基金(2020D-5007-0101)
详细信息
    作者简介: 孙砚泽(1993—)，男，在读博士，主要从事油气地球化学研究。E-mail: 632885418@qq.com
    通讯作者: 彭晓波(1976—)，男，副教授，主要从事石油地质与勘探研究、教学工作。E-mail: pxbcn@126.com

  • 中图分类号: TE19;P618.13

Study on influencing factors of oil-water partition coefficient of phenolic compounds

  • 1.

    Key Laboratory of Exploration Technologies for Oil and Gas Resources, Yangtze University, Ministry of Education, Wuhan 434100, Hubei, China

  • 2.

    Hubei Key Laboratory of Petroleum Geochemistry and Environment, Yangtze University, Wuhan 434100, Hubei, China

  • Fund Project: This research is financially supported by the National Natural Science Foundation of China (Grant No.41872144), and the CNPC Innovation Foundation (No.2020D-5007-0101)
More Information

    摘要

  • 烷基酚是一类由酚类化合物烷基化后产生的化合物，与其他非烃化合物相比，更易溶于水。文章通过不同温度(25 ℃、45 ℃和65 ℃)、不同盐水浓度(4000 mg/L、6000 mg/L和8000 mg/L)和不同原油类型(X37、X45和X61)的三组油水分配实验，研究了烷基酚在油水两相间的分配特征，确定了烷基酚分配系数的变化规律。研究结果表明：随着同系物烷基分子量的增加，油水分配系数也随之增加；烷基酚的油水分配系数随着温度的增加而减小，同系物烷基分子量大的对温度更加敏感；烷基酚在油水体系中的分配系数随着水相盐度的增加而升高。从实验结果来看，温度和水相的盐度均会造成烷基酚油水分配系数差异，且温度的影响要大于盐度。烷基酚在油水两相间的分配行为可以为原油的二次运移和油藏开发的水驱前缘方向判断提供更多依据。

    Alkylphenols are a kind of compounds produced by alkylation of phenolic compounds. Compared with other non-hydrocarbon compounds, alkylphenols are more soluble in water. In this paper, through three groups of oil-water distribution experiments at different temperatures (25 ℃, 45 ℃ and 65 ℃), different brine concentrations (4000 mg/L, 6000 mg/L and 8000 mg/L) and different crude oil types (X37, X45 and X61), the distribution characteristics of alkylphenols between oil and water were studied, and the variation law of alkylphenol distribution coefficient was determined. The results show that the oil-water partition coefficient increases with the increase of alkyl molecular weight of homologues; The oil-water partition coefficient of alkylphenols decreases with the increase of temperature, and alkyl homologues with higher molecular weights are more sensitive to temperature; The partition coefficient of alkylphenol in oil-water system increases with the increase of water salinity. According to the experimental results, temperature and salinity of water phase will cause the difference of oil-water partition coefficient of alkylphenol, and the influence of temperature is greater than that of salinity. The distribution behavior of alkylphenols between oil and water can provide more reference for the secondary migration of crude oil and the direction of water drive front in reservoir development.

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  • 图 1  辽东湾坳陷绥中36-1油田位置及地层信息图

    Figure 1. 

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    图 2  绥中36-1油田X37、X45和X61原油质量色谱图

    Figure 2. 

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    图 3  酚类化合物硅烷化的反应机理(张渠等, 2009)

    Figure 3. 

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    图 4  X37原油烷基酚质量色谱图(峰号见表 1)

    Figure 4. 

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    图 5  X37原油在不同温度下的烷基酚油水分配系数大小(水的盐度为4000 mg/L)

    Figure 5. 

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    图 6  X37原油在不同盐水浓度下的烷基酚油水分配系数大小(温度为65 ℃)

    Figure 6. 

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    图 7  不同非烃含量的原油与水混合平衡后烷基酚的油水分配系数大小(温度为65 ℃，水的盐度为4000 mg/L)

    Figure 7. 

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    表 1  20种酚类化合物的峰号、分子式、分子量与中英文名称及简写

    Table 1.  Information table of 20 phenolic compounds (peak number, molecular formula, molecular weight, Chinese and English names and abbreviations)

    峰号 分子式 分子量 中文名称 英文名称及简写
    1 C6H6O 94 苯酚 Phenol(Ph)
    2 C7H20O 108 2-甲基酚 2-Methylphenol/2-Cresol(2-MPh)
    3 C7H20O 108 3-甲基酚 3-Methylphenol(3-MPh)
    4 C7H20O 108 4-甲基酚 4-Methylphenol(4-MPh)
    5 C8H34O 122 2-乙基酚 2-Ethylphenol(2-EPh)
    6 C8H34O 122 2, 5-二甲基酚 2, 5-Dimethylpheno(2, 5-DMPh)
    7 C8H34O 122 2, 4-二甲基酚 2, 4-Dimethylphenol(2, 4-DMPh)
    8 C8H34O 122 3, 5-二甲基酚 3, 5-Dimethylphenol(3, 5-DMPh)
    9 C8H34O 122 2, 6-二甲基酚 2, 6-Dimethylphenol(2, 6-DMPh)
    10 C8H34O 122 4-乙基酚 4-Ethylphenol(4-EPh)
    11 C9H48O 136 2-异丙基酚 2-Isopropylphenol(2-IPPh)
    12 C8H34O 122 2, 3-二甲基酚 2, 3-Dimethylphenol(2, 3-DMPh)
    13 C8H34O 122 3, 4-二甲基酚 3, 4-Dimethylphenol(3, 4-DMPh)
    14 C9H48O 136 2-丙基酚 2-Propylphenol(2-PPh)
    15 C9H48O 136 3-异丙基酚 3-Isopropylphenol(3-IPPh)
    16 C9H48O 136 4-异丙基酚 4-Isopropylphenol(4-IPPh)
    17+18 C9H48O 136 2, 4, 6-三甲基酚+
    2, 3, 5-三甲基酚    		 2, 4, 6-Trimethylphenol(2, 4, 6-TMPh)+
    2, 3, 5-Trimethylphenol(2, 3, 5-TMPh)
    19 C9H48O 136 2, 3, 6-三甲基酚 2, 3, 6-Trimethylphenol(2, 3, 6-TMPh)
    20 C9H48O 136 3, 4, 5-三甲基酚 3, 4, 5-Trimethylphenol(3, 4, 5-TMPh)
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收稿日期:  2021-07-27
修回日期:  2021-12-24
刊出日期:  2022-04-28

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