富有机质页岩和石油中马来酰亚胺类化合物的分布与意义

王广利; 常睿; 李婧仪; 朱雷

doi:10.11781/sysydz202203522

富有机质页岩和石油中马来酰亚胺类化合物的分布与意义

doi: 10.11781/sysydz202203522

王广利^{1, 2,},
常睿^{1, 2},
李婧仪^{1, 2},
朱雷^{1, 2}

1.
中国石油大学地球科学学院, 北京 102249
2.
中国石油大学(北京) 地球科学学院, 北京 102249

基金项目:

国家自然科学基金面上项目"地质卟啉热降解及含氮类分子标志物地球化学演化" 42072148

详细信息

作者简介:
王广利(1973-), 男, 博士, 副教授, 从事有机地球化学研究。E-mail: sydxwgl@cup.edu.cn

中图分类号: TE122.113
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- 被引次数: 0
出版历程
- 收稿日期: 2021-04-19
- 修回日期: 2022-03-22
- 刊出日期: 2022-05-28

Distribution and significance of maleimides in organic matter-enriched shales and derived crude oils

WANG Guangli^{1, 2
,},
CHANG Rui^{1, 2},
LI Jingyi^{1, 2},
ZHU Lei^{1, 2}

1.
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2.
College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China

摘要

摘要: 马来酰亚胺或1H-吡咯-2, 5-二酮来源于叶绿素或细菌叶绿素的降解，是沉积有机质和石油中一类新型生物标志化合物。通过对国内外几个含油气盆地富有机质页岩的可溶有机质(EOM)和原油进行精细分离，在目标馏分F2中发现了丰富的马来酰亚胺类化合物，尤其是主要由光合绿硫细菌生成的2-甲基-3-异丁基(Me, i-Bu)和2-甲基-3-正丙基(Me, n-Pr)马来酰亚胺。研究表明，2-甲基-3-异丁基和2-甲基-3-正丙基马来酰亚胺在海相和咸化湖盆中十分发育，表明透光滞水带(PZE)发生在松辽盆地嫩江组微咸水环境、渤海湾盆地沙河街组咸水—半咸水环境和奥连特盆地Napo组海相环境，指示强还原的保存条件。北部湾盆地2-甲基-3-异丁基和2-甲基-3-正丙基马来酰亚胺的出现反映流沙港组二段油页岩形成过程中存在PZE，同样反映还原环境以及微咸水水体。可见，PZE是有机质富集和优质烃源层发育的有利因素。进一步分析发现，(Me, i-Bu)/(Me, Et)(甲基, 乙基)和(Me, n-Pr)/(Me, Et)参数可以区分海相、半咸水—咸水湖相和微咸水湖相环境。
- 芳基类异戊二烯烃 /
- 马来酰亚胺 /
- 绿硫菌 /
- 透光滞水带 /
- 富有机质页岩 /
- 烃源岩 /
- 沉积环境
Abstract: The maleimides, or 1H-pyrrole-2, 5-diones, are one of the novel types of biological markers existed in both sedimentary organic matter and petroleum, which could be products derived from the degradation of chlorophylls and bacteriochlorophylls. In this study, the maleimides composition was investigated in detail for several crude oils and petroleum source rocks with varying depositional settings, and abundant 2-methyl-3-n-propyl (Me, n-Pr) and 2-methyl-3-isobutyl (Me, i-Bu) maleimide, together with aryl isoprenoids were detected. These pigments-derived products were prominently generated by Chlorobiaceae and are especially abundant in the saline and marine black shales and related oils, indicating that PZE (photic zone euxinia) occurred in the brackish water environment of the Nenjiang Formation in the Songliao Basin, the saline to semi-saline water environment of the Shahejie Formation in the Bohai Bay Basin, and the marine environment of the Napo Formation in the Oriente Basin, showing strong reduction preservation conditions. It can be concluded that PZE is a favorable factor for the enrichment of organic matter and the development of high-quality source layers. In addition, the ratios of Me, i-Bu/Me, Et and Me, n-Pr/Me, when coupled together, could be used to diagnose the depositional conditions such as marine, saline, semi-saline or brackish water column.
- aryl isoprenoid /
- maleimide /
- Chlorobiaceae /
- PZE (photic zone euxinia) /
- OM-rich shales /
- source rock /
- deposition environment

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图 1 富有机质页岩和原油样品地球化学参数交会图

Figure 1. Geochemical indicators for OM-rich shale and crude oil samples

下载: 全尺寸图片幻灯片

图 2 富有机质页岩和原油中芳基类异戊二烯烃与Me, i-Bu和Me, n-Pr马来酰亚胺的质量色谱图

Figure 2. Mass chromatograms of aryl isoprenoids and Me, i-Bu and Me, n-Pr maleimides for OM-rich shale and crude oil samples

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图 3 富有机质页岩和原油样品中Me, i-Bu和Me, n-Pr马来酰亚胺含量相关图

Figure 3. Concentrations of Me, i-Bu and Me, n-Pr maleimides for OM-rich shale and crude oil samples

下载: 全尺寸图片幻灯片

图 4 富有机质页岩和原油样品中Pr/Ph和芳基类异戊二烯C_13-17/C_18-22(AIR)交会图

北部湾盆地原油和油页岩样品中未检测到芳基类异戊二烯烃或丰度较低，未计算AIR值。

Figure 4. Pr/Ph ratio vs. AIR for OM-rich shale and crude oil samples

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图 5 富有机质页岩和原油样品中(Me, i-Bu)/(Me, Et) 马来酰亚胺(a)和(Me, n-Pr)/(Me, Et)马来酰亚胺(b) 与芳基类异戊二烯C_13-17/C_18-22(AIR)相关图

北部湾盆地原油和油页岩样品中未检测到芳基类异戊二烯烃或丰度较低，未计算AIR值。

Figure 5. Me, i-Bu/Me, Et (a) and Me, n-Pr/Me, Et (b) maleimides vs. AIR for OM-rich shale and crude oil samples

下载: 全尺寸图片幻灯片

表 1 原油和页岩样品基本地球化学信息

Table 1. Basic information of oil and shale samples

编号	井号	盆地	类型	层位	ω(TOC)/%	S₁/(mg·g^-1)	S₂/(mg·g^-1)	T_max/℃	Pr/Ph	Pr/ nC₁₇	Ph/ nC₁₈	DBT	GI	AIR	i-Bu	n-Pr
1	3380	北部湾	油页岩	流二段	4.85	2.77	12.91	442	1.59	1.38	0.75	0.11	0.07	-	0.07	0.07
2	3490	北部湾	油页岩	流二段	7.52	6.86	23.40	432	1.49	0.53	0.32	0.05	0.15	-	0.18	0.04
3	2-1	北部湾	油页岩	流二段	6.34	0.43	7.03	429	1.49	0.51	0.33	0.06	0.12	-	0.03	0.03
4	2-2	北部湾	油页岩	流二段	2.08	0.90	6.04	442	1.48	4.15	3.20	0.08	0.11	-	0.00	0.01
5	2326	北部湾	油页岩	流二段	5.31	1.62	38.53	435	3.21	3.73	1.23	0.08	0.03	-	0.00	0.03
6	2644	北部湾	油页岩	流二段	6.47	3.21	33.55	435	2.67	1.42	0.58	0.10	0.03	-	0.01	0.05
7	3-4	北部湾	原油	流三段					1.82	0.54	0.30	0.01	0.07	-	0.21	0.01
8	1N-2	北部湾	原油	流一段					1.52	0.65	0.42	0.00	0.04	-	0.05	0.04
9	1N-3	北部湾	原油	流一段					1.42	0.84	0.52	0.01	0.04	-	0.09	0.06
10	1-5	北部湾	原油	涠三段					1.81	0.61	0.34	0.02	0.05	-	1.17	0.19
11	1-6	北部湾	原油	涠二段					1.74	0.66	0.36	0.02	0.05	-	0.39	0.19
12	2-5	北部湾	原油	流二段					2.14	0.79	0.40	0.03	0.04	-	1.72	0.56
13	2-1	北部湾	原油	流三段					1.86	0.70	0.37	0.00	0.05	-	1.72	0.50
14	11-3	北部湾	原油	流二段					1.86	0.56	0.31	0.02	0.04	-	4.54	0.49
15	2SA	北部湾	原油	流一段					2.17	0.85	0.40	0.01	0.04	-	2.73	0.53
16	10-1	北部湾	原油	涠三段					1.70	0.53	0.30	0.02	0.06	-	1.61	0.39
17	8-1	北部湾	原油	流一段					2.13	1.29	0.64	0.01	0.13	-	3.76	0.53
18	1S-2	北部湾	原油	流一段					1.99	0.52	0.27	0.00	0.06	-	1.88	0.39
19	C2	松辽	油页岩	嫩一段	7.76	2.25	58.91	439	0.35	0.81	2.92	0.03	0.14	1.05	0.000	0.006
20	L65	松辽	油页岩	嫩一段	2.11	1.17	11.82	437	0.38	0.72	2.76	0.01	0.60	0.89	0.000	0.003
21	D610	松辽	油页岩	嫩一段	2.29	0.68	13.12	435	0.42	1.02	4.02	0.01	0.15	0.78	0.000	0.003
22	Y15	松辽	油页岩	嫩一段	1.94	3.17	9.76	438	0.85	0.26	0.24	0.02	0.24	1.09	0.009	0.076
23	G12	松辽	油页岩	嫩一段	5.72	5.03	35.38	445	0.76	0.48	0.65	0.01	0.11	0.88	0.011	0.059
24	J1	松辽	页岩	嫩一段	1.80	2.50	9.91	442	0.68	0.75	1.11	0.00	0.35	0.57	0.006	0.035
25	J3	松辽	油页岩	嫩一段	2.46	2.58	15.84	441	1.05	0.39	0.34	0.01	0.44	0.87	0.004	0.028
26	L2	渤海湾	页岩	沙四段上部	1.05	1.04	4.01	437	0.24	0.23	0.49	2.00	0.25	0.06	0.08	0.12
27	L53	渤海湾	页岩	沙四段上部	1.46	1.27	7.88	421	0.28	0.29	0.59	1.85	0.22	0.13	0.058	0.13
28	G2	渤海湾	油页岩	沙四段上部	4.55	2.71	29.02	430	0.64	1.93	3.64	0.18	0.68	0.66	0.001	0.005
29	L89	渤海湾	页岩	沙四段上部	1.84	0.64	6.66	441	0.81	0.69	0.86	0.07	0.72	1.05	0.05	0.17
30	M38	奥连特	原油	Napo组					0.79	2.34	3.52	0.29	0.30	0.65	0.87	0.40
31	M27	奥连特	原油	Napo组					1.13	0.79	0.81	0.30	0.35	0.85	1.03	0.21
32	M14	奥连特	原油	Napo组					0.81	2.34	3.48	0.38	0.30	0.74	0.30	0.24
33	M16	奥连特	原油	Napo组					0.81	2.43	3.62	0.37	0.30	0.61	0.44	0.33
34	M21	奥连特	原油	Napo组					0.84	1.24	1.75	0.34	0.37	0.51	0.62	0.32
35	M22	奥连特	原油	Napo组					0.81	2.24	3.37	0.37	0.30	0.43	0.56	0.42
36	M35	奥连特	原油	Napo组					0.82	2.33	3.48	0.40	0.30	0.80	0.71	0.42
37	M42	奥连特	原油	Napo组					0.83	0.83	1.14	0.63	0.34	0.53	0.24	0.32
38	M45	奥连特	原油	Napo组					0.82	2.04	3.07	0.37	0.30	0.53	0.25	0.31
39	M50	奥连特	原油	Napo组					0.82	2.14	3.16	0.34	0.30	0.63	0.61	0.52
40	M51	奥连特	原油	Napo组					0.82	2.06	3.05	0.35	0.30	0.59	0.51	0.36
41	M52	奥连特	原油	Napo组					0.86	0.99	1.20	0.37	0.32	0.66	0.59	0.36
42	M53	奥连特	原油	Napo组					0.78	1.86	2.82	0.38	0.31	0.52	0.54	0.37
43	M54	奥连特	原油	Napo组					0.79	2.39	3.56	0.39	0.29	0.67	0.61	0.41
注：DBT为DBT/PHEN(二苯并噻吩/菲)；GI为伽马蜡烷/C₃₀藿烷；AIR为C_13-17/C_18-22芳基类异戊二烯；i-Bu为(Me, i-Bu)/(Me, Et)；n-Pr为(Me, n-Pr)/(Me, Et)。

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