芳烃化合物在稠油火驱室内实验中的指示作用

闫红星; 杨俊印; 姜文瑞; 张艳芳; 李培新

doi:10.11781/sysydz202205914

芳烃化合物在稠油火驱室内实验中的指示作用

doi: 10.11781/sysydz202205914

闫红星^{1, 2,},
杨俊印^{1, 2},
姜文瑞^{1, 2},
张艳芳^{1, 2},
李培新^{1, 2}

1.
中国石油辽河油田分公司勘探开发研究院, 辽宁盘锦 124010
2.
国家能源稠(重)油开采研发中心, 辽宁盘锦 124010

基金项目:

国家科技重大专项 2016ZX05055

中国石油基础性科技攻关课题 2021DJ1407

详细信息

作者简介:
闫红星(1987-), 男, 硕士, 高级工程师, 从事有机地球化学及油气田开发实验等研究工作。E-mail: yanhongxing87@126.com

中图分类号: TE357.7
计量
- 文章访问数: 424
- HTML全文浏览量: 135
- PDF下载量: 21
- 被引次数: 0
出版历程
- 收稿日期: 2021-08-23
- 修回日期: 2022-07-12
- 刊出日期: 2022-09-28

Function of aromatic compounds as indicators in laboratory experiments of heavy oil with fire flooding

YAN Hongxing^{1, 2
,},
YANG Junyin^{1, 2},
JIANG Wenrui^{1, 2},
ZHANG Yanfang^{1, 2},
LI Peixin^{1, 2}

1.
Exploration and Development Research Institute, Liaohe Oilfield Company, PetroChina, Panjin, Liaoning 124010, China
2.
National Energy Heavy Oil R&D Center, Panjin, Liaoning 124010, China

摘要

摘要: 火驱是否实现高温氧化是评价稠油油藏火驱开发效果的技术难点之一，为了认清火驱开发过程中原油化学性质的变化规律，采用室内三维物理模型开展了稠油火驱实验，并对火驱高温氧化后的原油开展芳烃气相色谱—质谱方面的研究。火驱后原油中萘系列、菲系列以及稠环芳烃相对含量增加，三芳甾烷相对含量降低；火驱过程中萘系列化合物与菲系列化合物均容易发生脱甲基、甲基迁移以及甲基取代反应，并且β构型萘与菲化合物的热稳定性要明显好于α构型；由于4-甲基二苯并噻吩与1-甲基二苯并噻吩热稳定性的差异，可以用其相对含量的变化和谱图分布特征判断火驱是否高温氧化；稠环芳烃中蒽可以作为火驱高温氧化的标志物，苝/苯并[e]芘、荧蒽/芘、蒽/菲比值的变化也是指示火驱高温氧化的良好指标。原油中芳烃化合物的变化特征与特征性标志物可以作为火驱过程中指示燃烧状态的良好指标，为稠油火驱燃烧状态的判识提供支持。
- 稠油 /
- 火驱 /
- 燃烧状态 /
- 高温氧化 /
- 色谱—质谱 /
- 芳烃
Abstract: Identifying whether high-temperature oxidation is realized in fire flooding has become one of the technical difficulties in evaluating the effect of fire flooding for heavy oil reservoirs. In order to study how the chemical properties of crude oil varied during fire flooding, a series of heavy oil fire flooding laboratory experiments were carried out using a three-dimensional physical model, and the gas chromatography-mass spectrometry of aromatics were performed for the crude oil before and after high-temperature oxidation during fire flooding. Results show that after fire flooding, the relative contents of naphthalenes, phenanthrenes and polycyclic aromatic hydrocarbons in the crude oil sample increased, while the relative content of tri-aromatic steroids decreased. During fire flooding, naphthalenes and phenanthrenes were all prone to demethylation, methyl migration and methyl substitution, showing significantly higher thermal stabilities in β-naphthalenes and β-phenanthrenes relative to α-naphthalenes and α-phenanthrenes. Due to the difference in thermal stability between 4-methyldibenzothiophene and 1-methyldibenzothiophene, the high-temperature oxidation in fire flooding could be identified according to the changes in their relative contents and the distribution characteristics of their spectra. Anthracene in polycyclic aromatic hydrocarbons could be used as a marker of high-temperature oxidation in fire flooding, while the changes in perylene/benzo(e)pyrene, fluoranthene/pyrene and anthracene/phenanthrene ratios were also good indicators for high-temperature oxidation in fire flooding. As observed from these findings, it can thus be concluded that the variation characteristics and characteristic markers of aromatic compounds in crude oil are good indicators for combustion state during fire flooding, providing favorable support for the identification of combustion state in heavy oil fire flooding.
- heavy oil /
- fire flooding /
- burning status /
- high temperature oxidation /
- GC-MS /
- aromatic hydrocarbons

HTML全文

图 1 火驱三维实验不同阶段温度场

Figure 1. Temperature field during different stages of 3D experiment with fire flooding

下载: 全尺寸图片幻灯片

图 2 原油火驱前后芳烃总离子流图

Figure 2. Total aromatic ion flow of crude oil before and after fire flooding

下载: 全尺寸图片幻灯片

图 3 原油火驱前后萘系列化合物对比

Figure 3. Comparison of naphthalene series compounds in crude oil before and after fire flooding

下载: 全尺寸图片幻灯片

图 4 原油火驱前后菲系列化合物对比

Figure 4. Comparison of phenanthrene series compounds in crude oil before and after fire flooding

下载: 全尺寸图片幻灯片

图 5 原油火驱前后甲基二苯并噻吩对比

Figure 5. Comparison of methyldibenzothiophene in crude oil before and after fire flooding

下载: 全尺寸图片幻灯片

图 6 原油火驱前后稠环芳烃中苝和苯并[e]芘对比

Figure 6. Comparison of perylene and benzo[e]pyrene in crude oil before and after fire flooding

下载: 全尺寸图片幻灯片

表 1 火驱前后原油物性与族组分变化特征

Table 1. Physical parameters and group composition of crude oil before and after fire flooding

原油类型	50 ℃黏度/(mPa·s)	族组分/%
原油类型	50 ℃黏度/(mPa·s)	饱和烃	芳烃	非烃	沥青质
火驱前	23 168.1	14.57	12.94	39.30	33.19
火驱后	503.1	25.45	17.51	27.07	29.97

下载: 导出CSV

表 2 原油火驱前后芳烃化合物相对含量对比

Table 2. Relative content of aromatic compounds in crude oil before and after fire flooding

原油类型	相对含量/%
原油类型	萘系列	菲系列	三芳甾烷系列	稠环芳烃
火驱前	18.11	33.06	22.17	8.95
火驱后	20.84	53.19	10.07	15.91

下载: 导出CSV

表 3 原油火驱前后萘系列化合物对比

Table 3. Relative content of naphthalene series compounds in crude oil before and after fire flooding

原油类型	相对含量/%					2-MN/1-MN
原油类型	萘	甲基萘	二甲基萘	三甲基萘	四甲基萘	2-MN/1-MN
火驱前	1.70	1.37	16.03	44.22	36.68	0.72
火驱后	0.45	0.38	5.10	56.02	38.05	0.83

下载: 导出CSV

表 4 原油火驱前后菲系列化合物对比

Table 4. Relative content of phenanthrene series compounds in crude oil before and after fire flooding

原油类型	相对含量/%					MPR	MPI
原油类型	菲	甲基菲	二甲基菲	三甲基菲	四甲基菲	MPR	MPI
火驱前	5.14	15.14	40.76	31.72	7.24	0.85	0.51
火驱后	6.70	17.34	39.07	27.88	9.00	0.93	0.73

下载: 导出CSV

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芳烃化合物在稠油火驱室内实验中的指示作用

doi: 10.11781/sysydz202205914

作者简介:
闫红星(1987-), 男, 硕士, 高级工程师, 从事有机地球化学及油气田开发实验等研究工作。E-mail: yanhongxing87@126.com

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Function of aromatic compounds as indicators in laboratory experiments of heavy oil with fire flooding

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芳烃化合物在稠油火驱室内实验中的指示作用

doi: 10.11781/sysydz202205914

作者简介: 闫红星(1987-), 男, 硕士, 高级工程师, 从事有机地球化学及油气田开发实验等研究工作。E-mail: yanhongxing87@126.com

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Function of aromatic compounds as indicators in laboratory experiments of heavy oil with fire flooding

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作者简介:
闫红星(1987-), 男, 硕士, 高级工程师, 从事有机地球化学及油气田开发实验等研究工作。E-mail: yanhongxing87@126.com