塔西南山前南缘甫沙8井原油与二叠系普司格组烃源岩的地球化学亲缘关系

王祥; 葛祝时; 张慧芳; 孙迪; 王张虎; 谢小敏; 孟强; 陈果; 肖七林

doi:10.11781/sysydz2025020372

塔西南山前南缘甫沙8井原油与二叠系普司格组烃源岩的地球化学亲缘关系

doi: 10.11781/sysydz2025020372

王祥^{1, 2, 3, 4,},
葛祝时⁵,
张慧芳^{1, 2, 3, 4, 6},
孙迪¹,
王张虎⁵,
谢小敏⁵,
孟强⁵,
陈果⁵,
肖七林^5, ,

1.
中国石油塔里木油田分公司，新疆库尔勒 841000
2.
中国石油天然气集团有限公司天然气成藏与开发重点实验室，河北廊坊 065007
3.
新疆超深油气重点实验室，新疆库尔勒 841000
4.
中国石油天然气集团有限公司碳酸盐岩储层重点实验室，新疆库尔勒 841000
5.
长江大学资源与环境学院，武汉 430100
6.
国家能源碳酸盐岩油气重点实验室，新疆库尔勒 841000

基金项目:

国家自然科学基金项目 42073066

中国石油科技专项子课题 2023ZZ14YJ01

详细信息

作者简介:
王祥(1980—)，男，博士，主要从事油气成藏与勘探研究。E-mail: wxiang-tlm@petrochina.com.cn

通讯作者:
肖七林(1980—)，男，博士，教授，主要从事油气地球化学研究。E-mail: qilinxiao@cug.edu.cn

中图分类号: TE122.1
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- 被引次数: 0
出版历程
- 收稿日期: 2023-11-20
- 修回日期: 2025-02-06
- 刊出日期: 2025-03-28

Geochemical oil and source correlation between crude oil of well Fusha 8 and source rocks of Permian Pusige Formation in southern margin, piedmont of southwestern Tarim Basin

WANG Xiang^{1, 2, 3, 4
,},
GE Zhushi⁵,
ZHANG Huifang^{1, 2, 3, 4, 6},
SUN Di¹,
WANG Zhanghu⁵,
XIE Xiaomin⁵,
MENG Qiang⁵,
CHEN Guo⁵,
XIAO Qilin^{5
, ,}

1.
PetroChina Tarim Oilfield Company, CNPC, Korla, Xinjiang 841000, China
2.
Key Laboratory of Gas Reservoir Formation and Development, CNPC, Langfang, Hebei 065007, China
3.
Xinjiang Key Laboratory of Ultra-deep Oil and Gas, Korla, Xinjiang 841000, China
4.
Key Laboratory of Carbonate, CNPC, Korla, Xinjiang 841000, China
5.
College of Resources and Environment, Yangtze University, Wuhan, Hubei 430100, China
6.
State Energy Key Laboratory of Carbonate Oil and Gas, Korla, Xinjiang 841000, China

摘要

摘要: 为进一步拓展塔西南山前南缘油气勘探领域，以该区甫沙克里阳构造带甫沙2井、阳1井二叠系普司格组烃源岩和新发现井——甫沙8井原油为主要研究对象，开展了有机地球化学亲缘关系研究。通过岩石热解、镜质体反射率测试、气相色谱、气相色谱—质谱、正构烷烃单体烃同位素分析，从烃源岩基础地球化学性质、分子标志化合物和单体烃碳同位素组成等方面刻画普司格组不同层段源岩地球化学特征，揭示不同层段烃源岩生烃潜力的差异性，初步探讨甫沙8井原油的来源。研究区普司格组上段上部和中段有机质丰度较低，为Ⅲ型有机质，难以作为有效源岩，同时可能存在深部运移烃侵染；普司格组上段下部和下段有机质丰度相对较高，为Ⅱ₁—Ⅲ型有机质，处于低熟—成熟阶段。普司格组上段下部沉积于偏氧化的浅湖环境，有机质为陆源高等植物和水生生物混合来源；下段沉积于还原性较强的深湖—半深湖环境，水生生物贡献相对较高。甫沙8井下侏罗统产出原油的Pr/Ph、C₂₄Te/C₂₆TT和甾烷/藿烷比值较高，C₁₉-C₂₃TT/C₃₀H比值较低，相对富含C₂₉规则甾烷、芴和氧芴，正构烷烃单体碳同位素值介于-32.0‰~-29.0‰之间，这与普司格组上段下部源岩生物标志化合物和单体烃碳同位素组成相一致，证实两者具有较好的亲缘关系。
- 生物标志化合物 /
- 稳定碳同位素 /
- 普司格组 /
- 二叠系 /
- 柯克亚油田 /
- 塔里木盆地
Abstract: To further expand the oil and gas exploration in the southern margin of the piedmont of the southwestern Tarim Basin, this study focuses on the newly discovered oil from well Fusha 8 and source rocks from wells Fusha 2 and Yang 1 in the Permian Pusige Formation of the Fusha-Keliyang structural belt. Organic geochemical oil and source correlation research was conducted. Through pyrolysis, vitrinite reflectance testing, gas chromatography (GC), GC-Mass Spectrometry (MS), and n-alkane monomer hydrocarbon isotope analysis, the geochemical characteristics of different layers of source rocks in the Permian Pusige Formation were characterized from aspects such as basic geochemical properties, molecular biomarkers, and monomer hydrocarbon carbon isotope compositions. The study revealed variations in hydrocarbon generation potential across different layers of source rocks from the Pusige Formation. Also, oil sources in well Fusha 8 were preliminarily explored. Results showed that the upper part of the upper section and the middle section of the Pusige Formation had low organic matter abundance, containing type Ⅲ organic matter, and were unlikely to serve as effective source rocks. Also, these source rocks may be contaminated by migrated hydrocarbons from the deeply buried reservoirs. The lower part of the upper section and lower section of the Pusige Formation had relatively higher organic matter abundance, featuring type Ⅱ₁ to Ⅲ organic matter in the low mature to mature stages. The lower part of the upper section of the Pusige Formation was deposited in a mildly oxidizing shallow lake environment, and the organic matter inputs were mixtures of terrestrial higher plants and aquatic organisms. Its lower section was deposited in a more reducing deep to semi-deep lake environment, with a higher content of aquatic organisms as inputs. The crude oil from the Lower Jurassic of well Fusha 8 had higher Pr/Ph, C₂₄Te/C₂₆TT, and sterane/hopane ratios and lower C₁₉-C₂₃TT/C₃₀H ratios. It was rich in C₂₉ regular steranes, fluorene, and dibenzofuran, with n-alkane monomer carbon isotope values ranging from -32.0‰ to -29.0‰. These characteristics are consistent with the biomarker and monomer hydrocarbon carbon isotope compositions of the lower part of the upper section of source rocks in the Pusige Formation, confirming a strong geochemical oil and source correlation between them.
- biomarkers /
- stable carbon isotopes /
- Pusige Formation /
- Permian /
- Kekeya Oilfield /
- Tarim Basin
注释:

利益冲突声明/Conflict of Interests

所有作者声明不存在利益冲突。

All authors declare no relevant conflict of interests.

作者贡献/Authors’Contributions

王祥、肖七林、张慧芳参与实验与论文设计；葛祝时、王张虎、谢小敏、孟强、陈果完成实验操作；王祥、肖七林、葛祝时参与论文写作和修改。所有作者均阅读并同意最终稿件的提交。

The study was designed by WANG Xiang, XIAO Qilin, and ZHANG Huifang. The experimental operation was completed by GE Zhushi, WANG Zhanghu, XIE Xiaomin, MENG Qiang, and CHEN Guo. The manuscript was drafted and revised by WANG Xiang, XIAO Qilin, and GE Zhushi. All authors have read the final version of the paper and consented to its submission.

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图 1 塔西南山前南缘构造单元及井位分布(a)、昆仑山前冲断带剖面(b)及研究区地层综合柱状图(c)

a图据文献[9]修改；b图据文献[1]修改；c图据文献[7]修改。

Figure 1. Structural units and well locations in the southern margin of piedmont of southwestern Tarim Basin (a), cross-section of thrust belt in piedmont of Kunlun Mountains (b), and comprehensive stratigraphic column of study area (c)

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图 2 塔西南山前南缘甫沙克里阳构造带二叠系普司格组烃源岩ω(TOC)-(S₁+S₂) (a)、T_max -I_H(b)交会图

Figure 2. Cross plots of TOC vs. S₁+S₂ (a) and T_max vs. I_H (b) for source rocks of Permian Pusige Formation in Fusha-Keliyang structural belt, southern margin of piedmont of southwestern Tarim Basin

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图 3 塔西南山前南缘甫沙克里阳构造带普司格组烃源岩和甫沙8井原油典型样品全油色谱(a)、m/z 191萜烷(b)和m/z 217甾烷(c)质谱图

Figure 3. Total oil chromatograms (a), m/z 191 terpanes (b), and m/z 217 steranes (c) mass spectra of typical samples of source rocks from Permian Pusige Formation and crude oil from well Fusha 8 in Fusha-Keliyang structural zone, southern margin of piedmont of southwestern Tarim Basin

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图 4 塔西南山前南缘甫沙克里阳构造带二叠系普司格组烃源岩和原油稳定单体碳同位素分布

Figure 4. Distribution of stable monomer carbon isotopes in source rocks and crude oil from Permian Pusige Formation in Fusha-Keliyang structural zone, southern margin of piedmont of southwestern Tarim Basin

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图 5 塔西南山前南缘研究区二叠系普司格组烃源岩与原油Pr/n-C₁₇—Ph/n-C₁₈(a)和Pr/Ph—DBT/P(b)交会图

a图据文献[16]修改；b图据文献[18]修改。

Figure 5. Cross plots of Pr/n-C₁₇ vs. Ph/n-C₁₈ (a) and Pr/Ph vs. DBT/P (b) for source rocks and crude oil from Permian Pusige Formation in study area, southern margin of piedmont of southwestern Tarim Basin

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图 6 塔西南山前南缘研究区二叠系普司格组烃源岩和原油地球化学特征相关参数交会图

a.F-SF-OF三角图；b.C₂₄Te/C₂₆TT与Pr/Ph交会图；c.9-MP/1-MP与Pr/Ph交会图；d.9-MP/1-MP与甾烷/藿烷交会图。

Figure 6. Cross plots of geochemical characteristics-related parameters for source rocks and crude oil from Permian Pusige Formation in study area, southern margin of piedmont of southwestern Tarim Basin

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图 7 塔西南山前南缘研究区二叠系普司格组烃源岩和原油指示成熟度相关参数交会图

a.C₂₉ββ/(αα+ββ)和C₂₉ααα-20S/(20S+20R)交会图；b.C₂₉ββ/(αα+ββ)与Ts/(Ts+Tm)交会图；c.TA[C₂₀/(C₂₀+C₂₈)-20R]和Ts/(Ts+Tm)；d.F₁与F₂交会图。

Figure 7. Cross plots of maturity-related parameters for source rocks and crude oil from Permian Pusige Formation in study area, southern margin of piedmont of southwestern Tarim Basin

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表 1 塔西南山前南缘甫沙克里阳构造带二叠系普司格组烃源岩岩石热解和镜质体反射率测试数据

Table 1. Pyrolysis and vitrinite reflectance data for source rocks from Permian Pusige Formation in Fusha-Keliyang structural belt, southern margin of piedmont of southwestern Tarim Basin

井位	层位	深度/m	岩性	ω(TOC)/%	S₁/(mg/g)	S₂/(mg/g)	S₁+S₂/(mg/g)	I_H/(mg/g)	有机质类型	T_max/℃	R_o/%
甫沙2	P_2-3p	5 350.4	黑色泥岩	0.33	0.02	0.04	0.06	37.00	Ⅲ	433
甫沙2	P_2-3p	5 353.8	黑色泥岩	0.27	0.01	0.03	0.04	11.00	Ⅲ	443
甫沙2	P_2-3p	5 354.9	灰黑色泥岩	0.33	0.01	0.01	0.02	3.00	Ⅲ	440
甫沙2	P_2-3p	5 356.5	灰色泥岩	0.24	0.01	0.02	0.03	8.00	Ⅲ	424
甫沙2	P_2-3p	5 500.1	黑色泥岩	0.37	0.03	0.33	0.36	89.00	Ⅲ	433
甫沙2	P_2-3p	5 503.3	黑色泥岩	0.61	0.06	0.99	1.05	164.00	Ⅱ₂	438
甫沙2	P_2-3p	5 504.5	黑色泥岩	0.57	0.08	0.78	0.86	137.00	Ⅲ	436
甫沙2	P_2-3p	5 506.1	黑色泥岩	0.37	0.05	0.37	0.42	99.00	Ⅲ	435
甫沙2	P_2-3p	5 507.7	灰色泥岩	0.30	0.04	0.32	0.36	105.00	Ⅲ	436	0.97
阳1	P_2-3p	2 140.4	灰色泥岩	0.33	0.07	0.80	0.87	243.16	Ⅱ₂	442	0.69
阳1	P_2-3p	2 546.1	灰黑色泥岩	0.40	0.06	0.25	0.31	63.29	Ⅲ	440
阳1	P_2-3p	2 548.6	灰黑色泥岩	0.51	0.05	0.75	0.80	146.77	Ⅱ₂	444
阳1	P_2-3p	2 549.6	灰黑色泥岩	0.68	0.09	1.59	1.68	234.51	Ⅱ₂	445	0.68
阳1	P_2-2p	2 801.7	红褐色泥岩	0.08	0.01	0.02	0.03	23.98	Ⅲ	440
阳1	P_2-2p	2 969.3	红褐色泥岩	0.02	0.01	0.02	0.03	95.69	Ⅲ	446
阳1	P_2-2p	2 969.5	灰黑色泥岩	0.45	0.10	0.76	0.86	107.37	Ⅱ₂	449	0.75
阳1	P_2-2p	3 698.4	红褐色泥岩	0.18	0.01	0.03	0.04	17.05	Ⅲ	448
阳1	P_2-1p	3 985.3	红褐色泥岩	0.42	0.11	0.63	0.74	151.08	Ⅱ₂	445	0.96
阳1	P_2-1p	4 143.6	灰黑色泥岩	0.72	0.09	2.45	2.54	340.75	Ⅱ₁	446	0.80
阳1	P_2-1p	4 146.6	灰黑色泥岩	1.01	0.16	3.35	3.51	331.68	Ⅱ₁	450	0.96

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表 2 塔西南山前南缘甫沙克里阳构造带二叠系普司格组烃源岩和甫沙8井原油饱和烃生物标志化合物组成

Table 2. Composition of saturated hydrocarbon biomarkers of source rocks in Permian Pusige Formation and crude oil from well Fusha 8 in Fusha-Keliyang structural zone, southern margin of piedmont of southwestern Tarim Basin

井位	深度/m	层位	主峰碳数	碳优势指数	奇偶优势	Pr/n-C₁₇	Ph/n-C₁₈	Pr/Ph	C_19-20 TT/C₂₁TT	C_19-23 TT/C₃₀H	C₂₄Te/C₂₆TT	Ts/(Ts+ Tm)	C₃₀ RAH/C₂₉Ts	Ga/C₃₁H	C₂₇/C₂₉ ααα	C₂₉20S/(20S+20R)	C₂₉ββ/(ββ+αα)	甾烷/藿烷
甫沙2	5 350.4	P_2-3p	n-C₁₆	1.2	0.4	0.6	0.5	0.5	1.3	3.9	1.3	0.2	0.4	0.5	1.0	0.5	0.4	0.6
甫沙2	5 353.8	P_2-3p	n-C₁₈	1.1	0.4	0.7	0.6	0.4	1.4	2.2	1.3	0.3	0.4	0.3	0.5	0.4	0.4	0.5
甫沙2	5 354.9	P_2-3p	n-C₁₈	1.2	0.6	1.8	0.9	0.9	2.0	0.4	2.5	0.1	1.1	0.4	0.4	0.4	0.3	0.2
甫沙2	5 356.5	P_2-3p	n-C₁₆	1.1	0.3	0.7	0.7	0.6	1.6	2.4	1.7	0.2	0.4	0.3	0.6	0.4	0.4	0.4
甫沙2	5 500.1	P_2-3p	n-C₁₈	1.3	0.8	2.9	1.5	1.1	1.9	0.2	3.1	0.1	1.2	0.8	0.3	0.4	0.2	0.5
甫沙2	5 503.3	P_2-3p	n-C₁₇	1.3	1.0	3.5	3.8	0.9	3.0	0.1	3.0	0.4	0.6	0.7	0.4	0.5	0.3	1.2
甫沙2	5 504.5	P_2-3p	n-C₁₈	1.2	0.8	2.8	3.1	0.7	1.7	0.1	3.3	0.4	0.6	1.6	0.3	0.4	0.3	1.1
甫沙2	5 506.1	P_2-3p	n-C₁₆	1.8	0.5	0.7	0.4	1.2	4.1	0.5	1.1	0.1	2.6	0.0	0.1	0.2	0.4	0.4
甫沙2	5 507.7	P_2-3p	n-C₁₈	1.3	0.7	1.4	0.9	1.0	1.5	0.4	1.4	0.1	1.1	0.6	0.1	0.4	0.2	0.6
阳1	1 912.3	P_2-3p	n-C₁₈	1.1	0.5	0.5	0.4	0.6	1.5	0.8	2.9	0.4	0.4	0.2	0.4	0.5	0.3	2.3
阳1	2 140.4	P_2-3p	n-C₂₁	1.2	1.0	0.3	0.3	0.7	1.3	0.6	3.4	0.4	0.5	0.1	0.3	0.5	0.4	2.9
阳1	2 546.1	P_2-3p	n-C₁₆	1.1	0.7	0.4	0.4	1.0	1.9	0.5	2.0	0.8	0.6	0.4	0.2	0.6	0.5	6.1
阳1	2 548.6	P_2-3p	n-C₁₉	1.2	1.0	0.2	0.2	0.9	1.6	0.6	3.1	0.7	0.9	0.1	0.2	0.6	0.5	6.9
阳1	2 549.6	P_2-3p	n-C₁₉	1.3	1.0	0.3	0.3	0.9	1.6	0.5	1.6	0.8	0.9	0.2	0.3	0.6	0.5	3.2
阳1	2 801.7	P_2-2p	n-C₁₈	1.1	0.6	0.4	0.4	0.5	1.1	4.4	0.6	0.5	0.6	0.3	0.8	0.4	0.4	1.3
阳1	2 969.3	P_2-2p	n-C₁₈	1.2	0.6	0.6	0.6	0.6	0.9	5.6	0.7	0.5	0.6	0.3	0.6	0.4	0.4	1.8
阳1	2 969.5	P_2-2p	n-C₂₁	1.2	1.0	0.1	0.1	0.9	0.9	6.6	1.8	0.5	1.4	0.6	0.6	0.6	0.3	1.6
阳1	3 698.4	P_2-2p	n-C₁₆	1.0	0.4	0.4	0.5	0.7	1.4	5.4	0.6	0.5	0.7	0.3	0.6	0.4	0.4	1.7
阳1	3 985.3	P_2-1p	n-C₁₈	1.1	1.0	0.3	0.5	0.7	1.8	2.3	1.4	0.8	1.3	0.3	0.2	0.6	0.5	4.8
阳1	4 143.6	P_2-1p	n-C₂₀	1.1	1.0	0.3	0.4	0.7	1.4	0.2	4.9	0.3	0.4	0.1	0.4	0.5	0.3	2.9
阳1	4 146.6	P_2-1p	n-C₂₁	1.2	1.2	0.2	0.2	0.8	1.2	0.3	3.3	0.3	0.6	0.1	0.2	0.5	0.3	4.7
甫沙8	3 881.8	J₁s	n-C₂₁	1.1	0.9	0.1	0.1	1.0	1.1	0.3	3.0	0.5	1.0	0.1	0.2	0.5	0.5	5.6
甫沙8	3 899.0	J₁s	n-C₂₁	1.1	0.9	0.1	0.1	1.0	1.1	0.3	3.0	0.5	0.9	0.1	0.2	0.5	0.5	5.2
注：碳优势指数为{(C₂₅+C₂₇+C₂₉+C₃₁+C₃₃)[1/(C₂₄+C₂₆+C₂₈+C₃₀+C₃₂)+1/(C₂₆+C₂₈+C₃₀+C₃₂+C₃₄)]}/2；奇偶优势为[(C_i+6C_i₊₂+C_i₊₄)/4(C_i₊₁+C_i₊₃)]^m，其中m=(-1)ⁱ⁺¹，i+1为主峰碳数；Pr为姥鲛烷；Ph为植烷；TT为三环萜烷；Te为四环萜烷；H为霍烷；Ts为三降新藿烷；Tm为三降藿烷；RAH为重排霍烷；Ga为伽马蜡烷；C₂₇/C₂₉ ααα为C₂₇ ααα-胆甾烷(20R)/C₂₉ ααα-甾烷(20R)；C₂₉ 20S为C₂₉ ααα-甾烷(20S)；C₂₉ 20R为C₂₉ ααα-甾烷(20R)；C₂₉ ββ为C₂₉ αββ-甾烷(20R+20S)；C₂₉ αα为C₂₉ ααα-甾烷(20R+20S)。

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表 3 塔西南山前南缘甫沙克里阳构造带二叠系普司格组烃源岩和甫沙8井原油芳烃地球化学组成

Table 3. Geochemical composition of aromatic hydrocarbons in source rocks from Permian Pusige Formation and crude oil from well Fusha 8 in Fusha-Keliyang structural zone, southern margin of piedmont of southwestern Tarim Basin

井位	深度/m	层位	I_TMNr	I_TeMNr	I_MPR	R_c	F₁	F₂	9-MP/1-MP	F/%	OF/%	SF/%	DBT/P	TA[C₂₀/(C₂₀+ C₂₈)-20R]	N/%	P/%	DBT/%	TAS/%
甫沙2	5 350.4	P_2-3p	0.7	0.6	1.6	1.2	0.6	0.4	0.9	3.0	17.3	79.7	0.1	0.2	13.76	81.97	3.49	0.79
甫沙2	5 353.8	P_2-3p	0.6	0.6	1.5	1.2	0.6	0.4	0.9	4.0	44.8	51.2	0.1	0.1	5.21	89.29	3.78	1.72
甫沙2	5 354.9	P_2-3p	0.2	0.1	1.0	0.9	0.5	0.3	1.3	23.0	52.7	24.3	0.1	0.1	11.56	51.73	0.95	35.76
甫沙2	5 356.5	P_2-3p	0.6	1.0	1.6	1.2	0.6	0.4	0.9	2.8	20.4	76.8	0.0	0.2	10.25	85.56	2.82	1.37
甫沙2	5 500.1	P_2-3p	0.2	0.1	1.0	0.9	0.5	0.3	1.5	55.4	30.9	13.7	0.0	0.1	10.09	35.05	0.95	53.91
甫沙2	5 503.3	P_2-3p	0.2	0.2	1.0	0.9	0.5	0.3	1.2	53.6	13.3	33.1	0.1	0.1	26.01	19.21	0.42	54.35
甫沙2	5 504.5	P_2-3p	0.2	0.2	1.1	1.0	0.5	0.3	1.2	49.9	14.1	36.0	0.0	0.1	24.64	32.04	0.65	42.67
甫沙2	5 506.1	P_2-3p	0.4	0.2	0.8	0.8	0.4	0.2	1.6	26.4	6.0	67.6	0.0	0.2	38.69	59.84	0.79	0.68
甫沙2	5 507.7	P_2-3p	0.3	0.2	1.1	1.0	0.5	0.3	1.4	47.0	20.2	32.8	0.1	0.0	15.73	42.15	1.24	40.88
阳1	1 912.3	P_2-3p	0.5	0.7	1.0	0.9	0.5	0.3	1.3	5.6	8.9	85.5	0.0	0.6	35.69	62.71	0.84	0.77
阳1	2 140.4	P_2-3p	0.4	0.5	0.7	0.7	0.4	0.2	1.4	7.0	8.4	84.6	0.0	0.2	35.98	54.33	0.39	9.29
阳1	2 546.1	P_2-3p	0.4	0.5	0.7	0.7	0.4	0.2	1.4	11.0	16.0	73.0	0.0	0.6	34.75	64.24	0.42	0.59
阳1	2 548.6	P_2-3p	0.4	0.4	0.5	0.6	0.4	0.2	1.5	23.7	66.5	9.8	0.2	0.7	49.33	49.63	0.35	0.69
阳1	2 549.6	P_2-3p	0.4	0.4	0.6	0.6	0.4	0.2	1.4	41.8	5.8	52.4	0.0	0.7	67.65	32.14	0.17	0.04
阳1	2 801.7	P_2-2p	0.5	1.1	1.6	1.2	0.6	0.4	0.9	3.3	85.5	11.2	0.1	0.5	6.36	89.24	4.20	0.20
阳1	2 969.3	P_2-2p	0.5	1.1	1.3	1.1	0.6	0.3	1.0	5.4	43.1	51.5	0.1	0.6	24.46	71.56	3.78	0.19
阳1	2 969.5	P_2-2p	0.4	0.5	0.3	0.3	0.3	0.1	1.4	9.3	20.5	70.2	0.0	0.9	50.72	48.78	0.36	0.15
阳1	3 698.4	P_2-2p	0.7	2.2	1.6	1.2	0.6	0.4	0.8	0.9	7.6	91.5	0.1	0.3	13.77	82.56	3.61	0.06
阳1	3 985.3	P_2-1p	0.5	0.6	0.6	0.6	0.4	0.2	1.3	7.5	4.8	87.7	0.0	0.8	49.75	49.69	0.16	0.41
阳1	4 143.6	P_2-1p	0.3	0.5	0.7	0.7	0.4	0.2	1.7	17.1	18.8	64.1	0.0	0.1	38.88	36.63	0.23	24.26
阳1	4 146.6	P_2-1p	0.4	0.6	0.8	0.8	0.5	0.3	1.3	14.5	9.0	76.5	0.0	0.6	53.88	44.83	0.30	1.00
甫沙8	3 881.8	J₁s	0.6	1.1	0.8	1.2	0.4	0.2	1.6	44.5	29.0	36.5	0.1	0.3	50.80	43.90	0.90	4.40
甫沙8	3 899.0	J₁s	0.6	0.9	0.8	1.2	0.5	0.2	1.6	43.4	30.3	36.3	0.1	0.3	50.60	44.10	0.85	4.90
注：I_TMNr为三甲基萘指数；I_TMNr=1, 3, 7-TMN/(1, 3, 7+1, 2, 5)-TMN；I_TeMNr为四甲基萘指数，I_TeMNr=1, 3, 6, 7-TeMN/(1, 3, 6, 7-+1, 2, 5, 6-+1, 2, 3, 5)-TMN；I_MPR为甲基菲指数，I_MPR=(2+3)-MP/(1+9)-MP；R_c=0.6(MPI-1) +0.40；F₁=(2+3)-MP/(1+2+3+9)-MP；F₂=2-MP/(1+2+3+9)-MP；MP为甲基菲；F为芴；OF为氧芴；SF为硫芴；DBT为二苯并噻吩；P为菲；N为萘；TAS为三芳甾烷。

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