生物降解稠油极性化合物负离子电喷雾傅立叶变换离子回旋共振质谱分析

李二庭; 史权; 马聪; 雷海艳; 吴建勋; 迪丽达尔·肉孜; 高秀伟; 王明

doi:10.11781/sysydz202203515

生物降解稠油极性化合物负离子电喷雾傅立叶变换离子回旋共振质谱分析

doi: 10.11781/sysydz202203515

李二庭^{1, 2,},
史权³,
马聪^{1, 2},
雷海艳^{1, 2},
吴建勋³,
迪丽达尔·肉孜^{1, 2},
高秀伟^{1, 2},
王明^{1, 2}

1.
新疆砾岩油藏实验室, 新疆克拉玛依 834000
2.
中国石油新疆油田分公司实验检测研究院, 新疆克拉玛依 834000
3.
中国石油大学, 北京 102249

基金项目:

国家油气重大专项 2016ZX05041-005-003

详细信息

作者简介:
李二庭(1988-), 男, 博士, 高级工程师, 从事油气地球化学研究工作。E-mail: lierting@petrochina.com.cn

中图分类号: TE135
计量
- 文章访问数: 442
- HTML全文浏览量: 149
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- 被引次数: 0
出版历程
- 收稿日期: 2021-03-15
- 修回日期: 2022-03-30
- 刊出日期: 2022-05-28

Analysis of polar compounds in biodegraded heavy oil by negative ion electrospray Fourier transform ion cyclotron resonance mass spectrometry

LI Erting^{1, 2
,},
SHI Quan³,
MA Cong^{1, 2},
LEI Haiyan^{1, 2},
WU Jianxun³,
ROUZI Dilidaer^{1, 2},
GAO Xiuwei^{1, 2},
WANG Ming^{1, 2}

1.
Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
2.
Research Institute of Experiment and Testing, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
3.
China University of Petroleum (Beijing), Beijing 102249, China

摘要

摘要: 为研究生物降解对原油中极性化合物组成影响，采用傅立叶变换离子回旋共振质谱分析技术，研究了准噶尔盆地三台—北三台地区生物降解稠油中极性大分子化合物的组成。结果显示，生物降解稠油中含杂原子化合物类型较为复杂，主要有N₁、N₁O₁、N₁O₂、O₁、O₁S₁、O₂、O₂S₁、O₃、O₃S₁和O₄；不同生物降解程度稠油中极性化合物组成具有明显差异，随着生物降解作用加剧，稠油中O₂类化合物相对丰度明显升高，N₁、O₁S₁、O₂S₁、O₃、O₃S₁和O₄类化合物呈现逐渐降低的变化规律。通过对极性化合物中相对丰度较高的N₁和O₂类化合物的分析发现，随着生物降解程度增大，N₁和O₂类极性化合物缩合度整体增高，指示高缩合度的极性化合物抗生物降解能力更强，更易富集，长烷基支链取代化合物更易被生物降解。在严重生物降解稠油中，O₂类极性化合物相对丰度最高，其中酸性组分以一环至四环环烷酸(分子缩合度DBE为2~5)为主。傅立叶变换离子回旋共振质谱分析技术具有超高质量分辨分析能力，可以从分子层次研究原油中极性大分子化合物的化学组成，为石油地球化学研究提供了新的技术手段。
- 极性化合物 /
- 傅立叶变换离子回旋共振质谱 /
- 生物降解 /
- 稠油 /
- 准噶尔盆地
Abstract: Taking the influence of lithological characteristics differences on the genesis of pores in migmatite reservoirs as the main line, the genesis and characteristics of pores were analyzed from the perspective of the relationship between rock fabric and grain deposition. (1) Based on hydrodynamic conditions, mineral assemblage and rock structure characteristics, and taking three endmembers of clastic particles, clay minerals and carbonate minerals for classification, the "sweet spots" in the Lucaogou Formation are mainly composed of tuffaceous sandy dolomite, tuffaceous feldspar detrital siltstone, tuffaceous dolomitic sandstone and tuffaceous dolomitic siltstone. The migmatites have mixed sources, and various types of migmatite layers can be superimposed on each other vertically to form facies marginal mixing. (2) Based on the spherical accumulation model, when the content of debris particles is lower than 52.4%, the porosity decreases with the increase of particle content. When the content of clastic particles reaches 52.4%, if the content of clastic particles[JP]continues to increase, large number of ntergranular pores will appear, and the porosity will increase rapidly, gradually evolving into a conventional sandstone reservoir. (3) According to the relationship between the three end components of clastic particles, clay minerals and carbonate minerals and the pore types, the pores of the migmatites in the Lucaogou Formation can be classified into three types including intergranular pore, intragranular dissolved pore and intercrystalline pore. The pores in tuffaceous sandy dolomites and tuffaceous feldspar detrital siltstones are mainly intergranular and intragranular dissolved ones supported by particles, while those in tuffaceous dolomitic sandstones and tuffaceous dolomitic siltstones are mainly intercrystalline ones. The development of high-quality migmatite reservoirs is mainly controlled by the content of clastic particle components, and the content of soluble clastic components and dissolution effect can improve the physical properties of the reservoirs.
- polar compound /
- Fourier transform ion cyclotron resonance mass spectrometry /
- biodegradation /
- heavy oil /
- Junggar Basin

HTML全文

图 1 准噶尔盆地三台—北三台地区稠油色谱图

Figure 1. Chromatogram of heavy oil in Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

图 2 准噶尔盆地三台—北三台地区稠油负离子ESI FT-ICR MS质谱图

Figure 2. Negative ion ESI FT-ICR MS mass spectrum of heavy oil in Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

图 3 准噶尔盆地三台—北三台地区稠油极性化合物类型分布

不同颜色表示不同的分子缩合度(DBE)。

Figure 3. Distribution of polar compound types of heavy oil in Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

图 4 准噶尔盆地三台—北三台地区稠油中N₁类化合物的DBE—碳数分布

Figure 4. DBE versus carbon number of N₁ class species in heavy oil of Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

图 5 准噶尔盆地三台—北三台地区稠油中不同DBE的N₁类化合物相对丰度

Figure 5. Relative abundance of N₁ compounds with different DBE in heavy oil of Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

图 6 准噶尔盆地三台—北三台地区稠油中O₂类化合物的DBE—碳数分布

Figure 6. DBE versus carbon number of O₂ class species in heavy oil of Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

图 7 准噶尔盆地三台—北三台地区稠油中不同DBE的O₂类化合物相对丰度

Figure 7. Relative abundance of O₂ compounds with different DBE in heavy oil of Santai-Beisantai area, Junggar Basin

下载: 全尺寸图片幻灯片

表 1 准噶尔盆地三台—北三台地区稠油地球化学特征

Table 1. Geochemical characteristics of heavy oil in Santai-Beisantai area, Junggar Basin

样品号	密度/(g·cm ^-3)	黏度(50 ℃)/(mPa·s)	饱和烃/%	芳烃/%	非烃/%	沥青质/%	降解级别
T1	0.887 1	79.32	73.94	12.42	13.34	0.30	1
T2	0.920 3	420.40	62.84	18.74	13.21	5.21	3
T3	0.943 3	2 100.00	57.31	20.39	17.39	4.91	5
T4	0.966 8	10 175.00	56.29	15.41	23.27	5.03	7

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