东濮凹陷盐湖相原油氮/氧化合物分布特征及其应用

doi:10.19657/j.geoscience.1000-8527.2019.06.01

摘要/Abstract

摘要：

东濮凹陷盐湖相原油中杂原子化合物研究薄弱。采用高分辨率质谱技术、结合色谱-质谱,对东濮凹陷盐湖相、淡水湖相原油、烃源岩中的含氮、氧化合物进行了检测。结果表明,原油中含有丰富的氮、氧化合物, N₁、O₁和O₂占绝对优势;随成熟度增加,N₁和O₁类化合物相对丰度增加、O₂类化合物相对丰度降低、氮/氧化合物的缩合度增加、烷基侧链碳数范围降低,提出了多项氮、氧化合物的成熟度辅助识别指标,建立了DBE₁₅/DBE₉-N₁和DBE₁₅⁺/DBE₁₄^--N₁与折算镜质体反射率之间的定量关系式。通过对氮、氧化合物的油-油、油-岩对比,认为东濮凹陷盐湖相原油主要来自成熟烃源岩。基于高分辨率质谱的氮、氧化合物具有重要的成熟度评价、油源对比、油气运移示踪的应用前景。

关键词: 东濮凹陷, 盐湖相原油, 氮/氧化合物, 高分辨率质谱

Abstract:

Heteroatomic compounds in saline lacustrine in the Dongpu Sag are weakly documented. ESI FT-ICR MS combined with GC/MS were utilized to reveal oxygen and nitrogen compounds in the saline lacustrine oils and source rocks in the sag. Abundant NO compounds were detected and dominated by N₁, O₁ and O₂ class species. It was observed that the relative abundance of the N₁ and O₁ species increased with increasing maturity, while the contents of O₂ species decreased with increasing maturity. It was also observed that there is an apparent increase in the condensation degree and a decrease in the carbon number of the N₁, O₁ and O₂ species with increasing of maturity. Several indices including DB₁₅⁺/DBE₁₄^--N₁ having a good relationship with calculated vitrinite reflection (R_c). Oil-oil and oil-source rock correlations based on-ESI FT-ICR MS showed that, the majority of the saline lacustrine oils in the northern Dongpu Depression was sourced from the relatively mature source rocks. It was proved that nitrogen and oxygen containing compounds have a good application prospect in maturity evaluation, source rock and hydrocarbon migration tracing.

Key words: Dongpu Sag, saline lacustrine oil, nitrogen/oxygen compounds, high resolution mass

中图分类号:

TE122.1

李素梅, 徐田武, 史权, 张云献, 吴建勋, 柯昌炜. 东濮凹陷盐湖相原油氮/氧化合物分布特征及其应用[J]. 现代地质, 2019, 33(06): 1137-1150.

LI Sumei, XU Tianwu, SHI Quan, ZHANG Yunxian, WU Jianxun, KE Changwei. Distribution and Application of Nitrogen and Oxygen Containing Compounds in the Saline Lacustrine Oils from the Dongpu Sag[J]. Geoscience, 2019, 33(06): 1137-1150.

图/表 10

表1 东濮凹陷原油、烃源岩基本地球化学特征

Table 1 Basic geochemical characteristics for the crude oils and source rocks analyzed in the Dongpu Sag

地区	井号	井段/m	层位		CPI	OEP	Pr/ Ph	G	C₃₅/ C₃₄	20S	αββ	Ts	Dia/ Reg	MPI₁	TMNr	TeMNr	R_c/ %
文留油田	W13-281	3 377.3~3 453.3	E $s 3 Z$	原油	0.97	1.01	0.53	0.54	1.15	0.54	0.53	0.39	0.29	0.47	0.56	0.59	0.68
	W13-319	3 417.4~3 689.5	E $s 3 Z$	原油	1.01	1.01	0.49	0.57	1.27	0.53	0.51	0.42	0.3	0.48	0.57	0.59	0.69
	W13-429	3 282.1~3 288.1	E $s 3 S$	原油	0.95	1.03	0.41	0.81	0.97	0.48	0.40	0.32	0.13	0.54	0.41	0.42	0.72
	W203-44	3 788.1~3 792.8	E $s 3 X$	原油	1	0.98	0.64	1.72	0.73	0.54	0.69	0.77	0.78	0.73	0.89	0.90	0.84
	W203-10	3 275.3~3 771.9	E $s 3 z$	原油	0.97	1	0.53	0.61	1.15	0.57	0.55	0.47	0.29	0.51	0.67	0.68	0.70
	W203-58	3 770.6~4 081.9	E $s 3 z$	原油	0.96	1.02	0.53	1.06	1.39	0.40	0.67	0.48	0.27	0.51	0.69	0.69	0.70
	W203-63	4 360.6~4 414.4	E $s 3 z$	原油	0.99	1.07	0.61	2.38	0	0.67	0.64	0.68	0.52	0.94	0.89	0.85	0.96
	W25-98	2 326.4~2 405.6	E $s 2 x$	原油	1.01	1.07	0.44	0.56	1.11	0.40	0.36	0.26	0.11	0.45	0.39	0.39	0.67
	W92-60	2 673~2 824	E $s 3 S$	原油	0.93	1.01	0.43	0.87	1.13	0.41	0.36	0.29	0.12	0.43	0.43	0.38	0.66
	W72-53	3 273.4~3 527	E $s 3 Z$	原油	0.94	0.99	0.37	0.70	1.08	0.49	0.42	0.31	0.17	0.55	0.40	0.42	0.73
	W138-10	2 919.1~2 942.4	Es₁	原油	0.97	0.85	0.20	0.93	1.11	0.24	0.21	0.11	0.08	0.54	0.46	0.39	0.72
	W88-59	3 515.1~3 877.5	E $s 3 Z$	原油	0.97	1.09	0.72	0.75	1.29	0.53	0.55	0.51	0.37	1.03	0.71	0.77	1.02
文 \| 濮 \| 卫	P1-120	2 241.4~2 408.4	Es₁	原油	0.93	1.07	0.41	0.74	1.26	0.31	0.29	0.27	0.11	0.64	0.46	0.43	0.78
	P7-18	3 233.5~3 517	E $s 3 Z$	原油	0.96	0.88	0.50	0.54	1.15	0.46	0.37	0.3	0.14	0.48	0.38	0.42	0.69
	W42-26	3 451~3 466.6	E $s 3 Z$	原油	0.98	0.9	0.62	0.54	0.78	0.43	0.33	0.25	0.13	0.44	0.27	0.31	0.67
	M85	1 612.2~1 630	E $s 2 S$	原油	0.92	0.91	0.39	0.73	1.64	0.32	0.28	0.24	0.11	0.46	0.44	0.41	0.68
	W77-10	2 734~2 799	Es₄-P	原油	0.90	0.92	0.42	0.73	1.6	0.34	0.28	0.22	0.11	0.46	0.43	0.39	0.68
	PS20	4 329.5~4 556.1	E $s 3 Z$	原油	1.00	0.97	0.63	0.78	1.24	0.60	0.55	0.49	0.29	0.56	0.70	0.74	0.74
胡 \| 柳	PS18	3 886.4~4 237.1	E $s 3 Z$	原油	0.96	0.94	0.52	0.77	1.44	0.55	0.60	0.66	0.46	0.8	0.90	0.91	0.88
	PS18-2	4 167~4 207.3	E $s 3 Z$	原油	0.96	1	0.54	2.23	0.32	0.46	0.69	0.73	0.86	0.89	0.94	0.91	0.93
	H96-3	4 039.3~4 105.5	E $s 3 Z$	原油	0.93	0.94	0.49	1.20	0	0.58	0.62	0.39	0.64	0.79	0.91	0.91	0.87
南部	C24-1	2 714.8~2 727.9	E $s 3 Z$	原油	1.01	1.19	1.21	0.25	0.69	0.45	0.40	0.37	0.19	0.53	0.57	0.52	0.72
南部	M19-30	2 848.4~2 900.6	E $s 3 Z$	原油	1.04	1.03	1.19	0.22	0.75	0.52	0.48	0.42	0.28	0.58	0.68	0.64	0.75
卫城	W18-5	2 657.55	E $s 3 Z$	油砂	0.89	0.80	0.22	0.76	1.63	0.34	0.30	0.18	0.11	0.48	/	0.30	0.69
	W18-5	2 715.39	E $s 3 X$	油砂	0.96	0.83	0.24	0.68	1.49	0.36	0.30	0.24	0.12	0.63	/	0.24	0.78
	W18-5	2 904.01	E $s 3 X$	油砂	0.99	0.99	0.22	0.63	1.52	0.33	0.29	0.21	0.11	0.75	0.26	0.34	0.85
	W79-8	3 363.96	E $s 3 X$	油砂	0.88	0.76	0.19	0.97	1.59	0.53	0.40	0.18	0.11	0.53	/	0.31	0.72
	W79-8	3 456.16	E $s 3 X$	油砂	1.01	0.9	0.14	0.62	0.46	0.50	0.45	0.5	0.27
濮 \| 卫	WQ1	2 588.39	E $s 3 Z$	油页岩	1.51	1.75	0.09	0.24	0.85	0.18	0.22	0.21	0.07	0.61	/	0.22	0.76
	W18-5	2 661.55	E $s 3 Z$	页岩	0.83	0.69	0.30	0.83	1.54	0.36	0.41	0.24	0.12	0.38	0.12	0.32	0.63
	W18-5	2 712.82	E $s 3 X$	页岩	0.92	0.82	0.36	0.59	1.49	0.27	0.26	0.25	0.11	0.64	/	0.25	0.78
	W18-5	2 933.49	E $s 3 X$	泥页岩	1.16	1.06	0.64	0.48	0.96	0.26	0.25	0.29	0.13	0.64	/	0.15	0.78
	W79-8	3 368.01	E $s 3 X$	泥页岩	0.95	0.84	0.34	0.43	0.63	0.27	0.23	0.27	0.07	0.46	0.02	0.32	0.67
	W79-8	3 467.50	E $s 3 X$	泥页岩	1.06	1.07	0.38	2.41	0.73	0.44	0.49	0.34	0.24	0.66	/	0.19	0.8
	W311	3 619.90	E $s 3 X$	泥页岩	0.76	0.77	0.38	0.82	2.47	0.50	0.62	0.49	0.45	0.41	0.24	0.38	0.65
	W452	3 923.54	E $s 3 X$	泥岩	0.9	0.79	0.83	0.17	0.92	0.52	0.54	0.56	0.94	0.52	0.13	0.33	0.71
	PS20	4 440.27	E $s 3 X$	泥岩	0.98	0.96	0.75	2.90	1.57	0.49	0.47	0.73	1.02	0.54	/	0.54	0.72
	PS20	4 555.28	E $s 3 X$	页岩	1.04	0.98	0.85	2.07	1.1	0.20	0.22	0.81	0.32	0.64	0.31	0.65	0.79

表1 东濮凹陷原油、烃源岩基本地球化学特征

Table 1 Basic geochemical characteristics for the crude oils and source rocks analyzed in the Dongpu Sag

地区	井号	井段/m	层位		CPI	OEP	Pr/ Ph	G	C₃₅/ C₃₄	20S	αββ	Ts	Dia/ Reg	MPI₁	TMNr	TeMNr	R_c/ %
文留油田	W13-281	3 377.3~3 453.3	E $s 3 Z$	原油	0.97	1.01	0.53	0.54	1.15	0.54	0.53	0.39	0.29	0.47	0.56	0.59	0.68
	W13-319	3 417.4~3 689.5	E $s 3 Z$	原油	1.01	1.01	0.49	0.57	1.27	0.53	0.51	0.42	0.3	0.48	0.57	0.59	0.69
	W13-429	3 282.1~3 288.1	E $s 3 S$	原油	0.95	1.03	0.41	0.81	0.97	0.48	0.40	0.32	0.13	0.54	0.41	0.42	0.72
	W203-44	3 788.1~3 792.8	E $s 3 X$	原油	1	0.98	0.64	1.72	0.73	0.54	0.69	0.77	0.78	0.73	0.89	0.90	0.84
	W203-10	3 275.3~3 771.9	E $s 3 z$	原油	0.97	1	0.53	0.61	1.15	0.57	0.55	0.47	0.29	0.51	0.67	0.68	0.70
	W203-58	3 770.6~4 081.9	E $s 3 z$	原油	0.96	1.02	0.53	1.06	1.39	0.40	0.67	0.48	0.27	0.51	0.69	0.69	0.70
	W203-63	4 360.6~4 414.4	E $s 3 z$	原油	0.99	1.07	0.61	2.38	0	0.67	0.64	0.68	0.52	0.94	0.89	0.85	0.96
	W25-98	2 326.4~2 405.6	E $s 2 x$	原油	1.01	1.07	0.44	0.56	1.11	0.40	0.36	0.26	0.11	0.45	0.39	0.39	0.67
	W92-60	2 673~2 824	E $s 3 S$	原油	0.93	1.01	0.43	0.87	1.13	0.41	0.36	0.29	0.12	0.43	0.43	0.38	0.66
	W72-53	3 273.4~3 527	E $s 3 Z$	原油	0.94	0.99	0.37	0.70	1.08	0.49	0.42	0.31	0.17	0.55	0.40	0.42	0.73
	W138-10	2 919.1~2 942.4	Es₁	原油	0.97	0.85	0.20	0.93	1.11	0.24	0.21	0.11	0.08	0.54	0.46	0.39	0.72
	W88-59	3 515.1~3 877.5	E $s 3 Z$	原油	0.97	1.09	0.72	0.75	1.29	0.53	0.55	0.51	0.37	1.03	0.71	0.77	1.02
文 \| 濮 \| 卫	P1-120	2 241.4~2 408.4	Es₁	原油	0.93	1.07	0.41	0.74	1.26	0.31	0.29	0.27	0.11	0.64	0.46	0.43	0.78
	P7-18	3 233.5~3 517	E $s 3 Z$	原油	0.96	0.88	0.50	0.54	1.15	0.46	0.37	0.3	0.14	0.48	0.38	0.42	0.69
	W42-26	3 451~3 466.6	E $s 3 Z$	原油	0.98	0.9	0.62	0.54	0.78	0.43	0.33	0.25	0.13	0.44	0.27	0.31	0.67
	M85	1 612.2~1 630	E $s 2 S$	原油	0.92	0.91	0.39	0.73	1.64	0.32	0.28	0.24	0.11	0.46	0.44	0.41	0.68
	W77-10	2 734~2 799	Es₄-P	原油	0.90	0.92	0.42	0.73	1.6	0.34	0.28	0.22	0.11	0.46	0.43	0.39	0.68
	PS20	4 329.5~4 556.1	E $s 3 Z$	原油	1.00	0.97	0.63	0.78	1.24	0.60	0.55	0.49	0.29	0.56	0.70	0.74	0.74
胡 \| 柳	PS18	3 886.4~4 237.1	E $s 3 Z$	原油	0.96	0.94	0.52	0.77	1.44	0.55	0.60	0.66	0.46	0.8	0.90	0.91	0.88
	PS18-2	4 167~4 207.3	E $s 3 Z$	原油	0.96	1	0.54	2.23	0.32	0.46	0.69	0.73	0.86	0.89	0.94	0.91	0.93
	H96-3	4 039.3~4 105.5	E $s 3 Z$	原油	0.93	0.94	0.49	1.20	0	0.58	0.62	0.39	0.64	0.79	0.91	0.91	0.87
南部	C24-1	2 714.8~2 727.9	E $s 3 Z$	原油	1.01	1.19	1.21	0.25	0.69	0.45	0.40	0.37	0.19	0.53	0.57	0.52	0.72
南部	M19-30	2 848.4~2 900.6	E $s 3 Z$	原油	1.04	1.03	1.19	0.22	0.75	0.52	0.48	0.42	0.28	0.58	0.68	0.64	0.75
卫城	W18-5	2 657.55	E $s 3 Z$	油砂	0.89	0.80	0.22	0.76	1.63	0.34	0.30	0.18	0.11	0.48	/	0.30	0.69
	W18-5	2 715.39	E $s 3 X$	油砂	0.96	0.83	0.24	0.68	1.49	0.36	0.30	0.24	0.12	0.63	/	0.24	0.78
	W18-5	2 904.01	E $s 3 X$	油砂	0.99	0.99	0.22	0.63	1.52	0.33	0.29	0.21	0.11	0.75	0.26	0.34	0.85
	W79-8	3 363.96	E $s 3 X$	油砂	0.88	0.76	0.19	0.97	1.59	0.53	0.40	0.18	0.11	0.53	/	0.31	0.72
	W79-8	3 456.16	E $s 3 X$	油砂	1.01	0.9	0.14	0.62	0.46	0.50	0.45	0.5	0.27
濮 \| 卫	WQ1	2 588.39	E $s 3 Z$	油页岩	1.51	1.75	0.09	0.24	0.85	0.18	0.22	0.21	0.07	0.61	/	0.22	0.76
	W18-5	2 661.55	E $s 3 Z$	页岩	0.83	0.69	0.30	0.83	1.54	0.36	0.41	0.24	0.12	0.38	0.12	0.32	0.63
	W18-5	2 712.82	E $s 3 X$	页岩	0.92	0.82	0.36	0.59	1.49	0.27	0.26	0.25	0.11	0.64	/	0.25	0.78
	W18-5	2 933.49	E $s 3 X$	泥页岩	1.16	1.06	0.64	0.48	0.96	0.26	0.25	0.29	0.13	0.64	/	0.15	0.78
	W79-8	3 368.01	E $s 3 X$	泥页岩	0.95	0.84	0.34	0.43	0.63	0.27	0.23	0.27	0.07	0.46	0.02	0.32	0.67
	W79-8	3 467.50	E $s 3 X$	泥页岩	1.06	1.07	0.38	2.41	0.73	0.44	0.49	0.34	0.24	0.66	/	0.19	0.8
	W311	3 619.90	E $s 3 X$	泥页岩	0.76	0.77	0.38	0.82	2.47	0.50	0.62	0.49	0.45	0.41	0.24	0.38	0.65
	W452	3 923.54	E $s 3 X$	泥岩	0.9	0.79	0.83	0.17	0.92	0.52	0.54	0.56	0.94	0.52	0.13	0.33	0.71
	PS20	4 440.27	E $s 3 X$	泥岩	0.98	0.96	0.75	2.90	1.57	0.49	0.47	0.73	1.02	0.54	/	0.54	0.72
	PS20	4 555.28	E $s 3 X$	页岩	1.04	0.98	0.85	2.07	1.1	0.20	0.22	0.81	0.32	0.64	0.31	0.65	0.79

图1 东濮凹陷原油、烃源岩中氮、氧化合物的相对分布

Fig.1 Relative abundance of heteroatom class species in the oils and source rocks assigned from negative-ion ESI FT-ICR MS

图2 东濮凹陷原油、烃源岩中N1、O1、O2类化合物缩合度分布特征

Fig.2 Relative distribution of the N1, O1 and O2 species with varying DBE values of the crude oils and rock extracts from the negative-ion ESI FT-ICR MS

图3 原油中N1、O2类化合物系列不同碳数相对分布

Fig.3 Carbon curve of the N1 species with DBE=9, 12 and 15 in the selected oils (left); Carbon curve of the O2 species with DBE = 1 in the selected oils (right)

图4 N1类化合物缩合度指标DBE15+/DBE14--N1与DBE15/DBE9-N1与常规成熟度指标的相关性

Fig.4 Correlation of -ESI FT-ICR MS condensation parameters of 15+/DBE14--N1 and DBE15/DBE9-N1 with normal maturity parameters

图5 原油、烃源岩O1、O2类化合物缩合度参数与常规成熟度指标的相关性

Fig.5 Correlation of -ESI FT-ICR MS condensation parameters of DBE5-20/DBE1-4-O1 and DBE12-22/DBE5-6-O2 with normal maturity parameters

图6 原油、烃源岩中特定缩合度的N1、O1类化合物高、低碳数比参数(C20-30/C31-50-DBE12-N1、C20-30/C31-50-DBE15-N1、C20-30/C15-45-DBE1-O1)与埋深关系图

Fig.6 Correlation of -ESI FT-ICR MS parameters of C20-30/C31-50-DBE12-N1, C20-30/C31-50-DBE15-N1 and C20-30/C15-45-DBE1-O1 with burial depth

表2 基于-ESI FT-ICR MS的原油、烃源岩的氮、氧化合物参数表

Table 2 Basic parameters based on -ESI FT-ICR MS for the oils and rock extracts analyzed

井号	深度/ m	层位	DBE_5-20/ DBE_1-4-O₁	DBE_12-22/ DBE_5-6-O₂	DBE₁₅/ DBE₉-N₁	DB $E 15 +$ / DB $E 14 -$ -N₁	C_20-30/C_31-50 -DBE₁₂-N₁	C_20-3/C_31-50 -DBE₁₅-N₁	C_20-30/C_15-45 -DBE₁-O₂
W13-281		E_s₃^Z	1.63	1.46	0.59	0.36	1.32	1.61	0.24
W13-319		E_s₃^Z	2.37	1.10	0.55	0.33	1.34	1.72	0.25
W13-429		E_s₃^S	1.28	2.74	0.23	0.20	0.81	0.83	0.32
W203-44		E_s₃^X	12.48	3.37	1.46	0.66	1.49	2.32	0.10
W203-10		E_s₃^Z	2.37	1.42	0.91	0.46	1.80	2.77	0.16
W203-58		E_s₃^Z	4.08	1.22	0.83	0.42	1.41	1.84	0.19
W203-63		E_s₃^Z	7.24	0.40	5.83	0.67	4.18	4.24	0.12
W25-98		E_s₃^X	2.31	0.21	0.20	0.20	1.07	0.94	0.62
W92-60		E_s₃^S	1.84	0.32	0.26	0.21	1.00	0.87	0.55
W72-53		E_s₃^Z	1.67	0.55	0.34	0.25	1.04	1.12	0.21
W138-10		Es₁	0.43	0.03	0.05	0.05	0.73	0.65	0.64
W88-59		E_s₃^Z	2.19	0.84	0.79	0.42	1.56	2.12	0.11
P1-120		Es₁	1.21	0.07	0.13	0.14	0.66	0.45	0.66
P7-18		E_s₃^Z	1.91	4.04	0.32	0.25	1.50	1.53	0.31
W42-26		E_s₃^Z	1.77	0.56	0.33	0.24	1.38	1.56	0.20
M85		E_s₃^S	1.70	0.24	0.26	0.19	1.46	1.23	0.44
W77-10		Es₄-P	1.18	0.32	0.17	0.17	0.97	0.79	0.68
PS20		E_s₃^Z	6.53	6.13	1.16	0.55	2.20	3.33	0.14
PS18		E_s₃^Z	12.89	4.00	1.77	0.61	2.14	3.68	0.13
PS18-2		E_s₃^Z	18.79	6.88	4.40	0.84	2.85	4.06	0.08
H96-3		E_s₃^Z	9.39	1.70	1.95	0.58	2.46	3.42	0.22
C24-1		E_s₃^Z	2.93	0.41	0.44	0.32	1.23	1.18	0.40
M19-30		E_s₃^Z	3.07	0.37	0.72	0.43	1.70	1.78	0.38
W18-5	2 657.55	E_s₃^Z	1.79	0.31	0.89	0.49	13.09	10.33	1.79
W18-5	2 715.39	E_s₃^X	1.16	0.28	0.29	0.16	1.56	3.29	1.16
W18-5	2 904.01	E_s₃^X	1.09	0.19	0.18	0.11	1.17	2.42	1.09
W79-8	3 363.96	E_s₃^X	0.96	0.56	0.63	0.36	2.56	3.45	0.96
W79-8	3 456.16	E_s₃^X	7.35	1.76	-	4.23	-	-	7.35
WQ1	2 588.39	E_s₃^Z	0.39	0.02	0.56	0.30	3.21	5.13	0.39
W18-5	2 661.55	E_s₃^Z	1.75	0.20	0.36	0.22	2.25	2.91	1.75
W18-5	2 712.82	E_s₃^X	1.25	0.22	1.13	0.52	2.70	4.21	1.25
W18-5	2 933.49	E_s₃^X	2.36	0.35	1.68	0.73	3.25	6.96	2.36
W79-8	3 368.01	E_s₃^X	0.57	0.38	-	4.80	-	-	0.57
W79-8	3 467.50	E_s₃^X	1.57	0.68	2.39	1.57	2.14	2.98	1.57
W311	3 619.90	E_s₃^X	1.66	0.93	7.68	5.10	1.64	4.58	1.66
W452	3 923.54	E_s₃^X	2.47	2.19	5.30	3.32	3.02	5.86	2.47
PS20	4 440.27	E_s₃^X	2.24	1.63	18.40	9.82	3.20	7.81	2.24
PS20	4 555.28	E_s₃^X	2.29	2.66	39.24	9.60	4.94	10.20	2.29

表2 基于-ESI FT-ICR MS的原油、烃源岩的氮、氧化合物参数表

Table 2 Basic parameters based on -ESI FT-ICR MS for the oils and rock extracts analyzed

井号	深度/ m	层位	DBE_5-20/ DBE_1-4-O₁	DBE_12-22/ DBE_5-6-O₂	DBE₁₅/ DBE₉-N₁	DB $E 15 +$ / DB $E 14 -$ -N₁	C_20-30/C_31-50 -DBE₁₂-N₁	C_20-3/C_31-50 -DBE₁₅-N₁	C_20-30/C_15-45 -DBE₁-O₂
W13-281		E_s₃^Z	1.63	1.46	0.59	0.36	1.32	1.61	0.24
W13-319		E_s₃^Z	2.37	1.10	0.55	0.33	1.34	1.72	0.25
W13-429		E_s₃^S	1.28	2.74	0.23	0.20	0.81	0.83	0.32
W203-44		E_s₃^X	12.48	3.37	1.46	0.66	1.49	2.32	0.10
W203-10		E_s₃^Z	2.37	1.42	0.91	0.46	1.80	2.77	0.16
W203-58		E_s₃^Z	4.08	1.22	0.83	0.42	1.41	1.84	0.19
W203-63		E_s₃^Z	7.24	0.40	5.83	0.67	4.18	4.24	0.12
W25-98		E_s₃^X	2.31	0.21	0.20	0.20	1.07	0.94	0.62
W92-60		E_s₃^S	1.84	0.32	0.26	0.21	1.00	0.87	0.55
W72-53		E_s₃^Z	1.67	0.55	0.34	0.25	1.04	1.12	0.21
W138-10		Es₁	0.43	0.03	0.05	0.05	0.73	0.65	0.64
W88-59		E_s₃^Z	2.19	0.84	0.79	0.42	1.56	2.12	0.11
P1-120		Es₁	1.21	0.07	0.13	0.14	0.66	0.45	0.66
P7-18		E_s₃^Z	1.91	4.04	0.32	0.25	1.50	1.53	0.31
W42-26		E_s₃^Z	1.77	0.56	0.33	0.24	1.38	1.56	0.20
M85		E_s₃^S	1.70	0.24	0.26	0.19	1.46	1.23	0.44
W77-10		Es₄-P	1.18	0.32	0.17	0.17	0.97	0.79	0.68
PS20		E_s₃^Z	6.53	6.13	1.16	0.55	2.20	3.33	0.14
PS18		E_s₃^Z	12.89	4.00	1.77	0.61	2.14	3.68	0.13
PS18-2		E_s₃^Z	18.79	6.88	4.40	0.84	2.85	4.06	0.08
H96-3		E_s₃^Z	9.39	1.70	1.95	0.58	2.46	3.42	0.22
C24-1		E_s₃^Z	2.93	0.41	0.44	0.32	1.23	1.18	0.40
M19-30		E_s₃^Z	3.07	0.37	0.72	0.43	1.70	1.78	0.38
W18-5	2 657.55	E_s₃^Z	1.79	0.31	0.89	0.49	13.09	10.33	1.79
W18-5	2 715.39	E_s₃^X	1.16	0.28	0.29	0.16	1.56	3.29	1.16
W18-5	2 904.01	E_s₃^X	1.09	0.19	0.18	0.11	1.17	2.42	1.09
W79-8	3 363.96	E_s₃^X	0.96	0.56	0.63	0.36	2.56	3.45	0.96
W79-8	3 456.16	E_s₃^X	7.35	1.76	-	4.23	-	-	7.35
WQ1	2 588.39	E_s₃^Z	0.39	0.02	0.56	0.30	3.21	5.13	0.39
W18-5	2 661.55	E_s₃^Z	1.75	0.20	0.36	0.22	2.25	2.91	1.75
W18-5	2 712.82	E_s₃^X	1.25	0.22	1.13	0.52	2.70	4.21	1.25
W18-5	2 933.49	E_s₃^X	2.36	0.35	1.68	0.73	3.25	6.96	2.36
W79-8	3 368.01	E_s₃^X	0.57	0.38	-	4.80	-	-	0.57
W79-8	3 467.50	E_s₃^X	1.57	0.68	2.39	1.57	2.14	2.98	1.57
W311	3 619.90	E_s₃^X	1.66	0.93	7.68	5.10	1.64	4.58	1.66
W452	3 923.54	E_s₃^X	2.47	2.19	5.30	3.32	3.02	5.86	2.47
PS20	4 440.27	E_s₃^X	2.24	1.63	18.40	9.82	3.20	7.81	2.24
PS20	4 555.28	E_s₃^X	2.29	2.66	39.24	9.60	4.94	10.20	2.29

图7 基于-ESI FT-ICR MS的N1类化合物缩合度参数与折算镜质体反射率的相关性(上)及N1、O1、O2类化合物间的相关性(下)

Fig.7 Correlation of condensation parameters of N1 class species with calculated vitrinite reflectance (Rc) based on MPI1 index; Correlation of the relative abundance of the O2 class species versus the O1 and N1 class species in the crude oils and rock extracts analyzed

图8 原油、烃源岩中DBE=9、12、15的N1类化合物相对丰度三角图

Fig.8 Ternary plot of the relative abundance of DBE = 9, 12 and 15 N1 species in the crude oils and source rock extracts, showing an obvious primary migration fractionation effect of the crude oils

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