Influence of Thermal Action on Composition and Distribution of Steranes in Marine Crude Oil, Tarim Basin

doi:10.19657/j.geoscience.1000-8527.2019.04.16

Abstract

Abstract:

Based on systematic geochemical analysis, a suite of 26 marine crude oil samples and 1 simulation sample from the Tarim Basin (western China) were analyzed to investigate the influence of thermal action on the formation and distribution of steranes in crude oil. The results reveal distinct changes in the composition and distribution of steranes in different thermal evolution stages. Thermal cracking of crude oil results in decreasing sterane contents in the highly-mature stage. Meanwhile, the transient sterane content increase in the over-mature stage is likely related to the broken-down of hydrocarbons (with high molecular mass) in the crude oil. With increasing thermal maturity, the C₂₇/C₂₉ ratios of regular steranes shows an initial decrease and then an increase, which is likely controlled by the different generation and cracking rates of C₂₇ and C₂₉ regular steranes. Therefore, the C₂₇/C₂₉ ratios of regular steranes cannot be used to evaluate the sediment source in mature to highly-mature stage. In addition, the isomerization parameters of C₂₉ steranes in crude oil exhibit a significant maturity reduction or “reversal” in the highly-mature stage, which can be used to determine the thermal evolution stage of crude oil. Meanwhile, the value of diasteranes/regular steranes shows good positive correlation with maturity, and can be used as an effective maturity evaluation parameter of mature to highly-mature crude oil.

Key words: thermal action, steranes, Tarim Basin, marine crude oil, thermal simulation experiment

CLC Number:

TE122.1

YI Chuanjun, ZHANG Min, TENG Li. Influence of Thermal Action on Composition and Distribution of Steranes in Marine Crude Oil, Tarim Basin[J]. Geoscience, 2019, 33(04): 853-862.

Figures/Tables 8

References 35

[1]	尚慧芸, 童育英, 姜乃煌, 等. 鄂尔多斯盆地甾烷、萜烷的地球化学特征[J]. 石油勘探与开发, 1982(2):18-28.
[2]	王忠然, 张振才, 陈献忠, 等. 甾烷、萜烷等生物标志物的GC/MS鉴定[J]. 石油实验地质, 1983,5(3):70-78.
[3]	SCHWARK L, EMPT P. Sterane biomarkers as indicators of palaeozoic algal evolution and extinction events[J]. Palaeogeography,Palaeoclimatology,Palaeoecology, 2006,240, 225-236. DOI URL
[4]	BURLINGGAME A L, HAUG P, BELSKY T, et al. Occurrence of biogenic steranes and pentacyclic triterpanes in an Eocene shale(52 million years) and in an Early Precambrian shale(2.7 billion years):a preliminary report[J]. Proceedings of the National Academy of Sciences of the United States of America, 1965,54(5):1406-1412.
[5]	HUANG W Y, MEINSHEIN W G. Sterols as ecological indicators[J]. Geochimica et Cosmochimica Acta, 1979,43:739-745. DOI URL
[6]	MEINSCHEIN W G, HUANG W Y. Sterols, stanols, steranes and the origin of natural gas and petroleum[M]//ATKINSON G,ZUCKERMAN J L.Origin and Chemistry of Petroleum. Oxford,UK, Pergamon Press, 1981: 33-55.
[7]	SEIFERT W K, MOLDOWAN J M. Use of biological markers in petroleum exploration[M]// JOHNS R B.Mothods in Geochemistry and Geophysics. Amsterdam:Elsevier, 1986: 261-290.
[8]	PETERS K E, MOLDOWAN J M. The Biomarker Guide: Interpreting Molecular Fossils in Petroleum and Ancient Sediments[M]. Englewood Cliffs, NJ (United States); Prentice Hall, 1993: 60-70.
[9]	MACKENZIE A S, PATIENCE R L, MAXWELL J R, et al. Molecular parameters of maturation in the Toarcian shales, Paris Basin, France—I. Changes in the configurations of acyclic isoprenoid alkanes, steranes and triterpanes[J]. Geochimica et Cosmochimica Acta, 1980,44(11):1709-1721. DOI URL
[10]	MOLDOWAN J M. Source correlation and maturity assessment of select oils and rocks from the Central Adriatic Basin (Italy and Yugoslavia)[M]// MOLDOWAN J W,ALBRECHT P,PHILP R P.Biological Markers in Sediments and Petroleum. Englewood Cliffs:Prentice Hall, 1989: 1-90.
[11]	DZOU L I P, NOBLE R A, SENFTLE J T. Maturation effects on absolute biomarker concentration in a suite of coals and associated vitrinite concentrates[J]. Organic Geochemistry, 1995,23(7):681-697. DOI URL
[12]	夏燕青, 罗斌杰. 南宁盆地第三系木质褐煤中甾类化合物热模拟实验研究[J]. 石油实验地质, 1995,17(3):301-309.
[13]	陈世加, 王廷栋, 黄请德, 等. C₂₉甾烷成熟度指标“倒转”及其地质意义[J]. 天然气地球科学, 1997,8(1):28-30.
[14]	YANG Yunfei, ZHANG Min, CHEN Julin. Thermal effect on the distribution of regular sterane and geological significance[J]. Open Journal of Yangtze Gas and Oil, 2017,2(4):249-259. DOI URL
[15]	张水昌, 梁狄刚, 黎茂稳, 等. 分子化石与塔里木盆地油源对比[J]. 科学通报, 2002,47(增刊):16-23.
[16]	唐友军, 张凯, 苏飞, 等. 过成熟烃源岩评价指标探讨——以扎鲁特地区鲁D₂井上二叠统林西组烃源岩为例[J]. 石油天然气学报, 2013,35(12):35-40.
[17]	朱心健, 陈践发, 贺礼文, 等. 塔里木盆地麦盖提斜坡罗斯2井油气地球化学特征及油气源分析[J]. 天然气地球科学, 2017,28(4):566-574.
[18]	孙浩, 李素梅, 庞秋菊. 塔里木盆地深层原油热演化特征——热模拟实验的证据[J]. 应用基础与工程科学学报, 2015,23(6):1120-1133.
[19]	陈菊林, 张敏. 原油热模拟实验中重排藿烷类变化特征及其意义[J]. 现代地质, 2016,30(4):871-879.
[20]	LI Sumei, AMRANI A, PANG Xiongqi, et al. Origin and quantitative source assessment of deep oils in the Tazhong Uplift, Tarim Basin[J]. Organic Geochemistry, 2015,78:1-22. DOI URL
[21]	唐小强, 黄光辉, 张敏, 等. 原油及其族组分裂解过程中产物组成变化特征[J]. 成都理工大学学报(自然科学版), 2011,38(1):21-28.
[22]	RADKE M, WELTE D H, WILLSCH H. Geochemical study on a well in the Western Canada Basin: relation of the aromatic distribution pattern to maturity of organic matter[J]. Geochimica et Cosmochimica Acta, 1982,46(1):1-10. DOI URL
[23]	LEWAN M D, BJORAY M, DOLCATER D L, et al. Effects of thermal maturation on steroid hydrocarbons as determined by hydrous pyrolysis of phosphoria retort shale[J]. Geochimica et Cosmochimica Acta, 1986,50(9):1977-1987. DOI URL
[24]	孙涛, 段毅. 煤系有机质生成烃类中甾烷系列化合物地球化学特征——以高温封闭体系下热模拟实验为例[J]. 天然气地球科学, 2011,22(6):1082-1087.
[25]	王贵昌, 潘荫明, 李勇军, 等. 分子力学方法和基团加和方法估算有机分子标准生成焓[J]. 科学通报, 1996(12):1095-1099.
[26]	侯读杰, 冯子辉. 油气地球化学[M]. 北京: 石油工业出版社, 2011: 18-19.
[27]	ZHANG Min. Research status and progress of genetic mechanism of abnormal regular sterane distribution in geological bodies[J]. Open Journal of Yangtze Gas and Oil, 2018,3(1):68-78. DOI URL
[28]	陈中红, 张守春, 查明. 不同压力体系下原油裂解的地球化学演化特征[J]. 中国科学:地球科学, 2013,43(11):1807-1818.
[29]	LEEUW J W D, COX H C, GRAAS G V. Limited double bond isomerisation and selective hydrogenation of sterenes during early diagenesis[J]. Geochimica et Cosmochimica Acta, 1989,53(4):903-909. DOI URL
[30]	PHILP R P. Fossil Fuel Biomarkers[M]. New York: Elsevier, 1985: 1-294
[31]	刘全有, 刘文汇, 孟仟祥. 热模拟实验中煤岩及显微组分饱和烃甾烷系列化合物有机地球化学特征[J]. 天然气地球科学, 2007,18(2):249-253.
[32]	盛国英, 周中毅, 沈汝浪. 模拟原油在储集层中的热转变试验——再论克拉玛依油田多油源[J].石油勘探与开发, 1986(1):15-25.
[33]	郑建京, 温德顺, 孟仟祥, 等. 煤系烃源岩热模拟演化过程的地球化学参数特征——以准噶尔盆地侏罗系煤系烃源岩为例[J]. 天然气地球科学, 2003,14(2):134-139.
[34]	CHEN Zhonghong, SIMONEIT B R T, WANG T G. et al. Effects of high temperatures on biomarker ratios during oil-to-gas cracking experiments at two pressures[J]. Organic Geochemistry, 2016,101:108-131. DOI URL
[35]	CHEN Zhonghong, ZHA Ming, JIN Qiang, et al. Distribution of sterane maturity parameters in a lacustrine basin and their control factors: A case study from the Dongying Sag, East China[J]. Petroleum Science, 2011,8(3):290-301. DOI URL

井号	深度/m	层位	密度 D²⁰/ (g/cm³)	黏度/ (mm²/s)	凝固点/ ℃	含蜡量/ %	含硫量/ %	胶质/ %	沥青质/ %
LG13	5 544~5 626	O	0.925 7	8.56	12	11.00	0.10	2.70	0.20
LG19	5 419~5 460	O	0.847 4	7.03	14	8.90	0.28	1.70	0.15
LG38	5 619.38~5 740	O	0.822 9	2.43	-2	11.40	0.08	/	/
LG391	5 885.50~5 970	O	0.821 6	2.01	/	11.08	0.28	/	/
LN44	5 283.65~5 323	O	0.855 8	7.13	-10	7.70	0.18	2.90	0.20
LN621	5 720.8~5 785.5	O	0.834 5	3.29	10	6.10	0.10	1.00	0.09
LN631	5 902.88~5 990	O	0.862 6	12.91	34	25.17	0.20	4.86	0.11
TZ44	4 854~4 877	O₁₊₂	0.828 0	2.80	4	4.35	0.05	6.32	0.49
TZ452	6 376.76~6 350	O₁₊₂	0.850 4	4.89	-12	2.20	0.16	/	/
TZ58	4 710.6	O	0.829 2	3.12	4	11.50	0.22	1.00	0.08
TZ62	4 052.98~4 073.58	S	0.930 7	44.04	-16	11.76	0.23	6.26	0.44
TZ62-2	4 773.53~4 825	O	0.805 4	1.58	-4	8.17	0.20	0.12	0.10
TZ70	4 703.5~4 770	O	0.806 6	1.70	-14	8.30	0.14	1.30	0.05
TZ821	5 212.64~5 250.2	O	0.811 8	1.96	20	10.39	0.14	0.12	/
TZ823	5 369~5 550	O	0.822 9	2.78	24	8.59	0.25	/	/
TZ824	5 744.59~5 750	O	0.851 2	5.12	14	10.75	0.28	0.96	0.69
XIANG-3	6 117~6 127	O	0.925 5	29.75	-18	2.40	0.01	6.72	0.50
YM206	5 081.64~5 950	O	0.814 6	14.77	-24	7.91	0.58	7.47	3.91

井号	深度/m	层位	密度 D²⁰/ (g/cm³)	黏度/ (mm²/s)	凝固点/ ℃	含蜡量/ %	含硫量/ %	胶质/ %	沥青质/ %
LG13	5 544~5 626	O	0.925 7	8.56	12	11.00	0.10	2.70	0.20
LG19	5 419~5 460	O	0.847 4	7.03	14	8.90	0.28	1.70	0.15
LG38	5 619.38~5 740	O	0.822 9	2.43	-2	11.40	0.08	/	/
LG391	5 885.50~5 970	O	0.821 6	2.01	/	11.08	0.28	/	/
LN44	5 283.65~5 323	O	0.855 8	7.13	-10	7.70	0.18	2.90	0.20
LN621	5 720.8~5 785.5	O	0.834 5	3.29	10	6.10	0.10	1.00	0.09
LN631	5 902.88~5 990	O	0.862 6	12.91	34	25.17	0.20	4.86	0.11
TZ44	4 854~4 877	O₁₊₂	0.828 0	2.80	4	4.35	0.05	6.32	0.49
TZ452	6 376.76~6 350	O₁₊₂	0.850 4	4.89	-12	2.20	0.16	/	/
TZ58	4 710.6	O	0.829 2	3.12	4	11.50	0.22	1.00	0.08
TZ62	4 052.98~4 073.58	S	0.930 7	44.04	-16	11.76	0.23	6.26	0.44
TZ62-2	4 773.53~4 825	O	0.805 4	1.58	-4	8.17	0.20	0.12	0.10
TZ70	4 703.5~4 770	O	0.806 6	1.70	-14	8.30	0.14	1.30	0.05
TZ821	5 212.64~5 250.2	O	0.811 8	1.96	20	10.39	0.14	0.12	/
TZ823	5 369~5 550	O	0.822 9	2.78	24	8.59	0.25	/	/
TZ824	5 744.59~5 750	O	0.851 2	5.12	14	10.75	0.28	0.96	0.69
XIANG-3	6 117~6 127	O	0.925 5	29.75	-18	2.40	0.01	6.72	0.50
YM206	5 081.64~5 950	O	0.814 6	14.77	-24	7.91	0.58	7.47	3.91

井号	1	2	3	4	5	6	7	8	9	10	11	12
HD4	15	3.63	2.98	0.63	0.16	0.59	0.50	0.37	0.59	0.14	0.44	0.59
LG13	17	1.67	2.41	0.75	/	2.83	/	0.74	0.86	0.69	0.50	0.59
LG19	17	2.02	2.57	0.81	0.36	0.68	0.60	0.41	0.50	0.12	0.44	0.39
LG38	17	1.88	3.33	0.73	/	2.25	/	0.69	0.67	0.53	0.52	0.59
LG391	15	3.28	14.87	0.67	/	3.55	/	0.78	0.70	0.48	0.50	0.58
LG4	14	5.38	7.26	0.66	0.12	1.02	0.44	0.50	0.70	0.17	0.49	0.57
LN44	15	5.05	6.15	0.71	0.17	1.43	0.43	0.59	0.77	0.18	0.48	0.58
LN621	17	1.89	3.06	0.63	/	5.33	/	0.84	0.78	0.65	0.47	0.59
LN63	18	1.56	2.37	0.68	0.20	1.06	0.61	0.51	0.66	0.38	0.47	0.49
LN63	16	1.93	2.78	0.70	0.20	1.14	0.60	0.53	0.79	0.25	0.47	0.46
LN631	23	0.71	1.66	0.63	/	8.54	/	0.90	0.68	0.57	0.51	0.60
TZ117	14	10.46	5.77	0.69	0.09	0.46	0.54	0.31	0.69	0.15	0.49	0.54
TZ30	13	6.51	3.70	0.76	0.34	0.41	0.54	0.29	0.36	0.04	0.43	0.39
TZ44	15	3.12	3.61	0.66	0.29	0.57	0.47	0.36	0.39	0.07	0.46	0.50
TZ452	15	4.30	8.73	0.80	0.38	1.21	0.44	0.55	0.62	0.08	0.42	0.49
TZ58	16	3.03	4.59	0.74	0.10	0.91	0.61	0.48	0.54	0.53	0.49	0.56
TZ62	17	4.27	12.87	0.87	0.18	0.55	0.52	0.35	0.72	0.10	0.41	0.48
TZ62-2	15	4.68	16.96	0.76	0.13	1.09	0.65	0.52	0.64	0.61	0.50	0.56
TZ70	16	3.71	4.63	0.75	0.13	0.85	0.61	0.46	0.64	0.57	0.49	0.57
TZ82	15	3.52	3.88	0.71	0.26	1.30	0.69	0.57	0.86	0.39	0.36	0.43
TZ82	15	3.64	4.23	0.74	/	1.56	0.71	0.61	0.86	0.59	0.42	0.52
TZ821	15	1.90	2.91	0.69	/	2.62	/	0.72	0.73	0.95	0.51	0.55
TZ823	17	1.74	2.46	0.62	/	3.12	/	0.76	0.67	0.67	0.48	0.50
TZ824	17	1.56	2.15	0.63	0.21	0.93	0.61	0.48	0.71	0.35	0.51	0.45
XIANG-3	15	3.32	2.88	0.63	0.18	0.44	0.50	0.30	0.62	0.10	0.43	0.54
YM206	14	3.59	3.04	0.72	0.10	0.57	0.52	0.36	0.68	0.18	0.45	0.58

井号	1	2	3	4	5	6	7	8	9	10	11	12
HD4	15	3.63	2.98	0.63	0.16	0.59	0.50	0.37	0.59	0.14	0.44	0.59
LG13	17	1.67	2.41	0.75	/	2.83	/	0.74	0.86	0.69	0.50	0.59
LG19	17	2.02	2.57	0.81	0.36	0.68	0.60	0.41	0.50	0.12	0.44	0.39
LG38	17	1.88	3.33	0.73	/	2.25	/	0.69	0.67	0.53	0.52	0.59
LG391	15	3.28	14.87	0.67	/	3.55	/	0.78	0.70	0.48	0.50	0.58
LG4	14	5.38	7.26	0.66	0.12	1.02	0.44	0.50	0.70	0.17	0.49	0.57
LN44	15	5.05	6.15	0.71	0.17	1.43	0.43	0.59	0.77	0.18	0.48	0.58
LN621	17	1.89	3.06	0.63	/	5.33	/	0.84	0.78	0.65	0.47	0.59
LN63	18	1.56	2.37	0.68	0.20	1.06	0.61	0.51	0.66	0.38	0.47	0.49
LN63	16	1.93	2.78	0.70	0.20	1.14	0.60	0.53	0.79	0.25	0.47	0.46
LN631	23	0.71	1.66	0.63	/	8.54	/	0.90	0.68	0.57	0.51	0.60
TZ117	14	10.46	5.77	0.69	0.09	0.46	0.54	0.31	0.69	0.15	0.49	0.54
TZ30	13	6.51	3.70	0.76	0.34	0.41	0.54	0.29	0.36	0.04	0.43	0.39
TZ44	15	3.12	3.61	0.66	0.29	0.57	0.47	0.36	0.39	0.07	0.46	0.50
TZ452	15	4.30	8.73	0.80	0.38	1.21	0.44	0.55	0.62	0.08	0.42	0.49
TZ58	16	3.03	4.59	0.74	0.10	0.91	0.61	0.48	0.54	0.53	0.49	0.56
TZ62	17	4.27	12.87	0.87	0.18	0.55	0.52	0.35	0.72	0.10	0.41	0.48
TZ62-2	15	4.68	16.96	0.76	0.13	1.09	0.65	0.52	0.64	0.61	0.50	0.56
TZ70	16	3.71	4.63	0.75	0.13	0.85	0.61	0.46	0.64	0.57	0.49	0.57
TZ82	15	3.52	3.88	0.71	0.26	1.30	0.69	0.57	0.86	0.39	0.36	0.43
TZ82	15	3.64	4.23	0.74	/	1.56	0.71	0.61	0.86	0.59	0.42	0.52
TZ821	15	1.90	2.91	0.69	/	2.62	/	0.72	0.73	0.95	0.51	0.55
TZ823	17	1.74	2.46	0.62	/	3.12	/	0.76	0.67	0.67	0.48	0.50
TZ824	17	1.56	2.15	0.63	0.21	0.93	0.61	0.48	0.71	0.35	0.51	0.45
XIANG-3	15	3.32	2.88	0.63	0.18	0.44	0.50	0.30	0.62	0.10	0.43	0.54
YM206	14	3.59	3.04	0.72	0.10	0.57	0.52	0.36	0.68	0.18	0.45	0.58

温度/ ℃	镜质体反射率/%	化合物浓度/(ug/g)					C₂₇/C₂₉ 规则甾烷	C₂₉20S/ (20S+20R)	C₂₉αββ/ (αββ+ααα)	规则甾烷/ 重排甾烷
温度/ ℃	镜质体反射率/%	∑C₂₇	∑C₂₈	∑C₂₉	∑diaC₂₇	∑diaC₂₉	C₂₇/C₂₉ 规则甾烷	C₂₉20S/ (20S+20R)	C₂₉αββ/ (αββ+ααα)	规则甾烷/ 重排甾烷
常温	0.28	301.74	329.55	418.38	90.77	16.41	0.72	0.10	0.41	0.48
350	1.15	317.70	421.30	539.89	97.11	31.36	0.59	0.10	0.41	0.50
400	1.25	334.33	402.80	607.77	86.40	29.96	0.55	0.09	0.45	0.47
450	1.35	355.23	427.55	609.09	85.79	30.75	0.58	0.08	0.42	0.45
500	1.5	434.18	568.65	1 058.61	93.14	36.13	0.41	0.06	0.31	0.42
550	1.65	76.07	81.31	140.13	24.38	3.81	0.54	0.09	0.30	0.40
600	1.9	318.13	425.60	578.54	88.73	32.44	0.55	0.09	0.42	0.46
650	2.18	148.97	174.31	233.82	39.95	17.65	0.64	0.10	0.38	0.47
700	2.45	153.03	149.51	215.81	36.70	13.37	0.71	0.10	0.42	0.46