Geochemical characteristics of crude oils in the second member of Kongdian Formation shale system, Cangdong Sag, Bohai Bay Basin
-
摘要: 利用原油物性、族组分分离与定量、饱和烃色谱—质谱、芳烃色谱—质谱、稳定碳同位素等分析测试资料,系统分析了渤海湾盆地沧东凹陷古近系孔二段页岩层系原油地球化学特征。研究表明,原油属于中质、中凝稠油,流动性较差;原油中烃类含量偏低,饱芳比和非沥比均较低。不同构造单元上的原油生物标志物及稳定碳同位素分布特征相似,反映其母质来源及生烃演化过程基本一致。饱和烃色谱以正态分布的单峰型为主,轻碳优势不明显,C27、C28、C29规则甾烷呈“上升型”分布,三环萜烷含量低,反映原油有机母质来源具有湖相水生生物和陆源高等植物的双重贡献,且以陆源高等植物为主。伽马蜡烷指数、重排霍烷含量及分布、Pr/Ph、三芴系列化合物、原油稳定碳同位素分布等指标反映了原油形成于弱氧化—还原条件下的淡水—微咸水沉积环境。正构烷烃分布特征和奇偶优势比、αββ/(ααα+αββ)C29与20S/(20S+20R)C29甾烷异构化指数以及霍烷异构化指数均指示原油成熟度偏低。Abstract: Crude oils in the shale system of the second member of Kongdian Formation (Ek2) in the Cangdong Sag of the Bohai Bay Basin were analyzed for physical properties, group composition, quantitative gas chromatography-mass spectrometry of saturated hydrocarbon and aromatic hydrocarbon fractions and stable carbon isotopes. The crude oils belong to medium quality, medium freezing point heavy oil with poor fluidity. The hydrocarbon content in the crude oils is low, and both ratios of saturated hydrocarbon to aromatic and nonhydrocarbon to asphaltene are low. The characteristics of crude oil biomarkers and stable carbon isotope distributions in different structural units are similar, indicating that these crude oils have roughly similar sources and hydrocarbon evolution processes. Almost all the samples have saturated hydrocarbons with a slight dominance of light carbons and are normally distributed with a single peak. The distribution of C27, C28 and C29 regular steranes shows a rising trend, while the tricyclic terpane content is very low, demonstrating that the original organic matter had contributions of lacustrine aquatic organisms and terrigenous higher plants, with the latter being the major contributor. The gammacerane index, the content and distribution of rearranged hopanes, Pr/Ph, dibenzothiophene, dibenzofuran and fluorine series, and stable carbon isotope distribution and other indicators suggest that the crude oil source rocks formed in fresh-brackish and weakly oxidizing to reducing lacustrine environment. The odd/even predominance, the αββ/(ααα+αββ)C29 and 20S/(20S+20R) C29 isomerization index and the hopane isomerization index indicate that the crude oils have low thermal maturity.
-
Key words:
- biomarker /
- crude oil /
- shale /
- second member of Kongdian Formation /
- Cangdong Sag /
- Bohai Bay Basin
-
表 1 渤海湾盆地沧东凹陷孔二段页岩层系原油物性数据
Table 1. Physical properties of crude oils from Ek2 in Cangdong Sag, Bohai Bay Basin
构造单元 井号 井深/m 密度/(g·cm-3) 黏度(50 ℃)/(mPa·s) 含蜡量/% 凝固点/℃ 孔东斜坡 G27-70 3 132.1~3 169.6 0.892 4 80.31 30.88 37 G28-66H 3 272.0~3 288.6 0.888 6 151.74 27.62 36 G32-72L 2 710.0~3 146.9 0.890 2 83.21 25.02 42 G32-73 2 438.9~2 474.9 0.890 8 81.88 23.80 38 G36-62 2 273.1~2 312.0 0.911 2 80.35 25.34 40 G36-64 2 278.6~2 340.2 0.882 1 81.24 24.89 39 G962-17 2 109.9~2 138.9 0.878 9 52.38 26.35 38 JK39-37 2 472.1~2 480.1 0.887 4 87.82 22.38 37 JK41-23 2 177.1~2 239.4 0.890 5 86.23 21.62 38 孔店构造带 F8-16 2 300.1~2 980.8 0.883 6 87.71 22.08 36 F22-9 2 312.1~2 936.3 0.886 9 82.36 23.67 37 F32-17 2 332.5~3 555.5 0.890 1 83.49 26.72 34 Z32 2 395.8~2 416.9 0.867 1 23.92 21.13 33 Z29-20 2 470.9~2 519.1 0.878 2 50.24 16.52 35 舍女寺断鼻带 NK51-42 3 140.6~3 275.6 0.910 2 113.28 17.46 38 NK53-32 2 700.8~3 160.2 0.895 6 114.21 18.56 37 NK53-57 3 043.1~3 197.9 0.885 4 76.61 23.01 36 NK60-52 2 891.8~3 016.1 0.892 7 108.36 20.21 38 NK61-42 2 806.2~2 848.2 0.891 5 114.39 17.64 38 表 2 渤海湾盆地沧东凹陷孔二段页岩层系原油族组成及饱和烃气相色谱参数
Table 2. Group compositions and gas chromatography parameters of saturated hydrocarbons of crude oils from Ek2 in Cangdong Sag, Bohai Bay Basin
井号 含量/% 饱和烃/芳烃 非烃/沥青质 主峰碳数 C21-/C22+ C21+22/C28+29 Pr/Ph Pr/nC17 Ph/nC18 CPI OEP 饱和烃 芳烃 非烃 沥青质 非烃+沥青质 G27-70 56.20 22.63 16.79 4.38 21.17 2.48 3.83 C23 0.39 1.14 0.82 0.59 0.65 1.17 1.16 G28-66H 62.25 20.48 12.45 4.82 17.27 3.04 2.58 C23 0.57 1.73 0.90 0.45 0.49 1.16 1.13 G32-72L 62.04 18.29 13.66 6.02 19.68 3.39 2.27 C23 0.35 1.25 0.68 0.51 0.62 1.17 1.17 G32-73 62.75 21.20 11.17 4.87 16.05 2.96 2.29 C23 0.44 1.28 0.81 0.51 0.61 1.17 1.16 G36-62 59.42 21.74 12.08 6.76 18.84 2.73 1.79 C23 0.40 1.26 0.78 0.49 0.56 1.16 1.13 G36-64 64.23 21.69 9.30 4.79 14.08 2.96 1.94 C23 0.47 1.34 0.81 0.46 0.55 1.15 1.14 G962-17 44.63 29.48 17.08 8.82 25.90 1.51 1.94 C27 0.31 0.86 0.53 1.18 2.36 1.32 1.35 JK39-37 38.70 26.32 24.15 10.84 34.98 1.47 2.23 C23 0.37 1.29 0.68 0.99 1.30 1.21 1.15 JK41-23 47.29 24.19 19.49 9.03 28.52 1.96 2.16 C23 0.41 1.43 0.69 0.61 0.72 1.16 1.17 F8-16 52.86 26.43 15.42 5.29 20.70 2.00 2.92 C23 0.41 1.34 0.69 0.68 0.93 1.21 1.19 F22-9 52.85 20.60 20.60 5.96 26.55 2.57 3.46 C23 0.42 1.53 0.72 0.68 0.88 1.27 1.17 F32-17 40.23 24.06 21.80 13.91 35.71 1.67 1.57 C23 0.37 1.35 0.63 1.80 2.14 1.12 1.13 Z32 43.72 28.74 17.00 10.53 27.53 1.52 1.62 C23 0.50 1.45 0.84 0.53 0.60 1.16 1.13 Z29-20 51.79 23.81 11.31 13.10 24.40 2.18 0.86 C23 0.47 1.50 0.79 0.51 0.55 1.15 1.10 NK51-42 60.36 23.42 11.71 4.50 16.22 2.58 2.60 C23 0.45 1.42 0.81 0.61 0.72 1.18 1.17 NK53-32 55.25 19.66 14.92 10.17 25.08 2.81 1.47 C23 0.55 1.42 1.00 0.58 0.58 1.16 1.16 NK53-57 54.39 21.27 15.79 8.55 24.34 2.56 1.85 C23 0.43 1.14 0.81 0.71 0.92 1.20 1.21 NK60-52 49.88 24.19 17.71 8.23 25.94 2.06 2.15 C23 0.37 1.14 0.60 0.92 1.63 1.32 1.32 NK61-42 50.34 22.30 18.39 8.97 27.36 2.26 2.05 C23 0.37 1.06 0.64 0.88 1.43 1.28 1.29 表 3 渤海湾盆地沧东凹陷孔二段原油萜烷参数
Table 3. Terpane parameters of crude oils from Ek2 in Cangdong Sag, Bohai Bay Basin
井号 深度/m 三环萜烷/C30H G/C30H 20S/(20S+20R)C31升藿烷 C30M/C30H Ts/Tm Ts/(Ts+Tm) G27-70 3 132.1~3 169.6 0.09 0.25 0.57 0.12 0.97 0.49 G28-66H 3 272.0~3 288.6 0.10 0.27 0.56 0.12 1.06 0.51 G32-72L 2 710.0~3 146.9 0.08 0.25 0.56 0.13 0.95 0.49 G32-73 2 438.9~2 474.9 0.08 0.26 0.56 0.13 0.90 0.47 G36-62 2 273.1~2 312.0 0.09 0.26 0.56 0.13 0.81 0.45 G36-64 2 278.6~2 340.2 0.09 0.27 0.56 0.14 0.79 0.44 G962-17 2 109.9~2 138.9 0.05 0.17 0.55 0.14 0.32 0.24 JK39-37 2 472.1~2 480.1 0.08 0.18 0.55 0.16 0.29 0.22 JK41-23 2 177.1~2 239.4 0.10 0.18 0.55 0.15 0.29 0.23 F8-16 2 300.1~2 980.8 0.07 0.19 0.55 0.14 0.47 0.32 F22-9 2 312.1~2 936.3 0.07 0.20 0.56 0.14 0.58 0.37 F32-17 2 332.5~3 555.5 0.11 0.18 0.56 0.12 0.47 0.32 Z32 2 395.8~2 416.9 0.09 0.22 0.55 0.12 0.74 0.43 Z29-20 2 470.9~2 519.1 0.10 0.24 0.56 0.14 0.78 0.44 NK51-42 3 140.6~3 275.6 0.08 0.20 0.56 0.13 0.64 0.39 NK53-32 2 700.8~3 160.2 0.09 0.20 0.55 0.13 0.65 0.39 NK53-57 3 043.1~3 197.9 0.07 0.17 0.56 0.12 0.53 0.35 NK60-52 2 891.8~3 016.1 0.04 0.16 0.54 0.12 0.39 0.28 NK61-42 2 806.2~2 848.2 0.05 0.16 0.54 0.12 0.40 0.28 -
[1] 徐祖新, 张义杰, 王居峰, 等. 沧东凹陷孔二段常规油与致密油关系研究[J]. 中国矿业大学学报, 2016, 45(2): 328-335. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201602016.htmXU Zuxin, ZHANG Yijie, WANG Jufeng, et al. Relationship between conventional oil and tight oil in the second member of Kongdian Formation, Cangdong Sag[J]. Journal of China University of Mining & Technology, 2016, 45(2): 328-335. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201602016.htm [2] 赵贤正, 蒲秀刚, 韩文中, 等. 细粒沉积岩性识别新方法与储集层甜点分析: 以渤海湾盆地沧东凹陷孔店组二段为例[J]. 石油勘探与开发, 2017, 44(4): 492-502. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201803002.htmZHAO Xianzheng, PU Xiugang, HAN Wenzhong, et al. A new method for lithology identification of fine grained deposits and reservoir sweet spot analysis: a case study of Kong 2 Member in Cangdong Sag, Bohai Bay Basin, China[J]. Petroleum Exploration and Development, 2017, 44(4): 492-502. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201803002.htm [3] 蒲秀刚, 韩文中, 周立宏, 等. 黄骅坳陷沧东凹陷孔二段高位体系域细粒相区岩性特征及地质意义[J]. 中国石油勘探, 2015, 20(5): 30-40. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201505004.htmPU Xiugang, HAN Wenzhong, ZHOU Lihong, et al. Lithologic characteristics and geological implication of fine-grained sedimentation in Ek2 high stand system tract of Cangdong Sag, Huanghua Depression[J]. China Petroleum Exploration, 2015, 20(5): 30-40. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201505004.htm [4] 贾承造, 邹才能, 李建忠, 等. 中国致密油评价标准、主要类型、基本特征及资源前景[J]. 石油学报, 2012, 33(3): 343-350. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201203000.htmJIA Chengzao, ZOU Caineng, LI Jianzhong, et al. Assessment criteria, main types, basic features and resource prospects of the tight oil in China[J]. Acta Petrolei Sinica, 2012, 33(3): 343-350. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201203000.htm [5] 邹才能, 朱如凯, 白斌, 等. 致密油与页岩油内涵、特征、潜力及挑战[J]. 矿物岩石地球化学通报, 2015, 34(1): 3-17. https://www.cnki.com.cn/Article/CJFDTOTAL-KYDH201501002.htmZOU Caineng, ZHU Rukai, BAI Bin, et al. Significance, geologic characteristics, resource potential and future challenges of tight oil and shale oil[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2015, 34(1): 3-17. https://www.cnki.com.cn/Article/CJFDTOTAL-KYDH201501002.htm [6] 杜金虎, 何海清, 杨涛, 等. 中国致密油勘探进展及面临的挑战[J]. 中国石油勘探, 2014, 19(1): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201401001.htmDU Jinhu, HE Haiqing, YANG Tao, et al. Progress in China's tight oil exploration and challenges[J]. China Petroleum Exploration, 2014, 19(1): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201401001.htm [7] 赵贤正, 姜在兴, 张锐锋, 等. 陆相断陷盆地特殊岩性致密油藏地质特征与勘探实践: 以束鹿凹陷沙河街组致密油藏为例[J]. 石油学报, 2015, 36(S1): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB2015S1001.htmZHAO Xianzheng, JIANG Zaixing, ZHANG Ruifeng, et al. Geolo-gical characteristics and exploration practices of special-lithology tight oil reservoirs in continental rift basins: a case study of tight oil in Shahejie Formation, Shulu Sag[J]. Acta Petrolei Sinica, 2015, 36(S1): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB2015S1001.htm [8] 赵贤正, 周立宏, 蒲秀刚, 等. 陆相湖盆页岩层系基本地质特征与页岩油勘探突破: 以渤海湾盆地沧东凹陷古近系孔店组二段一亚段为例[J]. 石油勘探与开发, 2018, 45(3): 361-372. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK202205010.htmZHAO Xianzheng, ZHOU Lihong, PU Xiugang, et al. Geological characteristics of shale rock system and shale oil exploration in a lacustrine basin: a case study from the Paleogene 1st sub-member of Kong 2 Member in Cangdong Sag, Bohai Bay Basin, China[J]. Petroleum Exploration & Development, 2018, 45(3): 361-372. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK202205010.htm [9] 周立宏, 蒲秀刚, 韩文中, 等. 沧东凹陷南皮斜坡孔二段沉积特征与油气勘探[J]. 成都理工大学学报(自然科学版), 2015, 42(5): 539-545. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG201505004.htmZHOU Lihong, PU Xiugang, HAN Wenzhong, et al. Sedimentary characteristics and hydrocarbon exploration of Ek2 of Nanpi slope area, Cangdong Sag, Huanghua Depression, North China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2015, 42(5): 539-545. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG201505004.htm [10] 蒲秀刚, 周立宏, 韩文中, 等. 细粒相沉积地质特征与致密油勘探: 以渤海湾盆地沧东凹陷孔店组二段为例[J]. 石油勘探与开发, 2016, 43(1): 24-33. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201803002.htmPU Xiugang, ZHOU Lihong, HAN Wenzhong, et al. Geologic features of fine-grained facies sedimentation and tight oil exploration: a case from the second member of Paleogene Kongdian Formation of Cangdong Sag, Bohai Bay Basin[J]. Petroleum Exploration & Development, 2016, 43(1): 24-33. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201803002.htm [11] 蒲秀刚, 时战楠, 韩文中, 等. 陆相湖盆细粒沉积区页岩层系石油地质特征与油气发现: 以黄骅坳陷沧东凹陷孔二段为例[J]. 油气地质与采收率, 2019, 26(1): 46-58. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201901005.htmPU Xiugang, SHI Zhannan, HAN Wenzhong, et al. Petroleum geological characteristics and hydrocarbon discovery of shale system in fine-grained sedimentary area of lacustrine basin: a case study of Kong2 Member in Cangdong Sag, Huanghua Depression[J]. Petroleum Geology and Recovery Efficiency, 2019, 26(1): 46-58. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201901005.htm [12] 刘小平, 刘庆新, 刘杰, 等. 黄骅坳陷沧东凹陷孔二段富有机质泥页岩地球化学特征[J]. 岩性油气藏, 2015, 27(6): 15-22. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201506003.htmLIU Xiaoping, LIU Qingxin, LIU Jie, et al. Geochemical characteristics of organic-rich shales of the second member of Kongdian Formation in Cangdong Sag, Huanghua Depression[J]. Lithologic Reservoirs, 2015, 27(6): 15-22. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201506003.htm [13] 刘国全, 贾丽. 沧东凹陷致密油形成条件及勘探潜力[J]. 特种油气藏, 2014, 21(5): 55-59. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201405013.htmLIU Guoquan, JIA Li. Forming conditions and potential of tight oil in Cangdong Sag[J]. Special Oil & Gas Reservoirs, 2014, 21(5): 55-59. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201405013.htm [14] 徐祖新, 姜文亚, 陈斐然, 等. 沧东凹陷孔二段油气分布序列与主控因素研究[J]. 特种油气藏, 2015, 22(6): 14-18. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201506004.htmXU Zhuxin, JIANG Wenya, CHEN Feiran, et al. Study on distribution sequence and main control factor of hydrocarbon in Kong2 Member, Cangdong Sag[J]. Special Oil & Gas Reservoirs, 2015, 22(6): 14-18. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201506004.htm [15] 林伶, 刘子藏, 官全胜, 等. 沧东凹陷孔二段致密油形成条件与勘探潜力[J]. 石油地质与工程, 2015, 29(6): 5-10. https://www.cnki.com.cn/Article/CJFDTOTAL-SYHN201506002.htmLIN Ling, LIU Zicang, GUAN Quansheng, et al. Formation conditions and exploration potential of tight oil in Candong Sag[J]. Petroleum Geology and Engineering, 2015, 29(6): 5-10. https://www.cnki.com.cn/Article/CJFDTOTAL-SYHN201506002.htm [16] 李三中, 索艳慧, 周立宏, 等. 华北克拉通内部的拉分盆地: 渤海湾盆地黄骅坳陷结构构造与演化[J]. 吉林大学学报(地球科学版), 2011, 41(5): 1362-1379. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201105011.htmLI Sanzhong, SUO Yanhui, ZHOU Lihong, et al. Pull-apart basins within the North China craton: structural pattern and evolution of Huanghua Depression in Bohai Bay Basin[J]. Journal of Jilin University (Earth Science Edition), 2011, 41(5): 1362-1379. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201105011.htm [17] 能源, 漆家福, 李庭辉, 等. 黄骅坳陷孔南地区新生代断裂特征及其与油气关系[J]. 现代地质, 2009, 23(6): 1077-1084. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200906011.htmNENG Yuan, QI Jiafu, LI Tinghui, et al. Characteristics of Cenozoic fault system and its significance in petroleum geology in Kongnan area, Huanghua Depression[J]. Geoscience, 2009, 23(6): 1077-1084. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200906011.htm [18] 武汉地质学院北京研究生院石油地质研究室岩相组, 大港油田石油勘探开发研究院勘探室岩相组. 黄骅坳陷第三系沉积相及沉积环境[M]. 北京: 地质出版社, 1987: 78-92.Petrofacies Group of Petroleum Geology Research Office, Beijing Graduate School, Wuhan Institute of Geology, Dagang Oilfield. Tertiary sedimentary facies and environment in Huanghua Depression[M]. Beijing: Geology Press, 1987: 78-92. [19] 周立宏, 蒲秀刚, 肖敦清, 等. 渤海湾盆地沧东凹陷孔二段页岩油形成条件及富集主控因素[J]. 天然气地球科学, 2018, 29(9): 1323-1332. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201809010.htmZHOU Lihong, PU Xiugang, XIAO Dunqing, et al. Geological conditions for shale oil formation and the main controlling factors for the enrichment of the 2nd member of Kongdian Formation in the Cangdong Sag, Bohai Bay Basin[J]. Natural Gas Geoscience, 2018, 29(9): 1323-1332. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201809010.htm [20] 顾忆, 黄继文, 邵志兵. 塔河油田奥陶系油气地球化学特征与油气运移[J]. 石油实验地质, 2003, 25(6): 746-750. doi: 10.11781/sysydz200306746GU Yi, HUANG Jiwen, SHAO Zhibing. Petroleum geochemistry and hydrocarbon migration in Tahe oilfield of the Tarim Basin[J]. Petroleum Geology & Experiment, 2003, 25(6): 746-750. doi: 10.11781/sysydz200306746 [21] 王屿涛, 陈克迅. 准噶尔盆地东部原油地球化学特征[J]. 石油与天然气地质, 1990, 11(1): 16-22. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT199001001.htmWANG Yutao, CHEN Kexun. Geochemical feature of crude oil in east Junggar Basin[J]. Oil & Gas Geology, 1990, 11(1): 16-22. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT199001001.htm [22] 常俊合, 李新军, 吕红玉, 等. 东濮凹陷文留潜山构造文古2井原油地球化学特征和油源研究[J]. 石油与天然气地质, 2004, 25(1): 44-48. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200401007.htmCHANG Junhe, LI Xinjun, LV Hongyu, et al. A study on geochemical characteristics and sources of oil produced from Wengu 2 well in Wenliu buried hill in Dongpu Depression[J]. Oil & Gas Geology, 2004, 25(1): 44-48. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200401007.htm [23] 母国妍, 钟宁宁, 刘宝. 辽河断陷西部凹陷原油地球化学特征及其成因类型[J]. 石油实验地质, 2008, 30(6): 611-616. doi: 10.11781/sysydz200806611MU Guoyan, ZHONG Ningning, LIU Bao. The geochemical characteristic and genetic type of crude oil in the western sag of the Liaohe Basin[J]. Petroleum Geology & Experiment, 2008, 30(6): 611-616. doi: 10.11781/sysydz200806611 [24] 刘飞, 朱钢添, 何生, 等. 渤海湾盆地惠民凹陷临南洼陷沙河街组原油地球化学特征及油源对比[J]. 石油实验地质, 2019, 41(6): 855-864. doi: 10.11781/sysydz201906855LIU Fei, ZHU Gangtian, HE Sheng et al. Geochemical characte-ristics of crude oil and oil-source correlation of Shehejie Formation in Linnan Sub-Sag, Huimin Sag, Bohai Bay Basin[J]. Petroleum Geology & Experiment, 2019, 41(6): 855-864. doi: 10.11781/sysydz201906855 [25] 路清华, 邵志兵, 贾存善, 等. 塔里木盆地玉北地区奥陶系原油成因特征分析[J]. 石油实验地质, 2013, 35(3): 320-324. doi: 10.11781/sysydz201303320LU Qinghua, SHAO Zhibing, JIA Shancun, et al. Genesis features of crude oil in Ordovician, Yubei area, Tarim Basin[J]. Petroleum Geology & Experiment, 2013, 35(3): 320-324. doi: 10.11781/sysydz201303320 [26] MOLDOWAN J M, SEIFERT W K, GALLEGOS E J. Relationship between petroleum composition and depositional environment of petroleum source rocks[J]. AAPG Bulletin, 1985, 69(8): 1255-1268. [27] PHILP R P, FAN P, LEWIS C A, et al. Geochemical characte-ristics of oils from the Chaidamu, Shanganning and Jianghan basins, China[J]. Journal of Southeast Asian Earth Science, 1991, 5(1/4): 351-358. [28] HUANG W Y, MEINSCHEIN W G. Sterols as ecological indicators[J]. Geochimica et Cosmochimica Acta, 1979, 4(3): 739-745. [29] CZOCHANSKA Z, GILBERT T D, PHILP R P, et al. Geochemical application of sterane and triterpane biomarkers to a description of oils from the Taranaki Basin in New Zealand[J]. Organic Geochemistry, 1988, 12(2): 123-135. [30] 蔡勋育, 朱扬明. 川东南官渡构造中侏罗统原油地球化学特征及油源[J]. 石油实验地质, 2006, 28(4): 380-385. doi: 10.11781/sysydz200604380CAI Xunyu, ZHU Yangming. Geochemical characteristics and source of middle Jurassic oil from Guandu structure in the southeastern Sichuan Basin[J]. Petroleum Geology & Experiment, 2006, 28(4): 380-385. doi: 10.11781/sysydz200604380 [31] 包建平, 朱翠山, 汪立群. 柴达木盆地西部原油地球化学特征对比[J]. 石油与天然气地质, 2010, 31(3): 354-359. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201003017.htmBAO Jianping, ZHU Cuishan, WANG Liqun. Geochemical characte-ristic comparison of crude oil samples from the western Qaidam Basin[J]. Oil & Gas Geology, 2010, 31(3): 354-359. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201003017.htm [32] 田德瑞, 吴奎, 张如才, 等. 渤海湾盆地辽西凸起北段锦州20油田原油地球化学特征及油源对比[J]. 石油实验地质, 2018, 40(3): 410-417. doi: 10.11781/sysydz201803410TIAN Derui, WU Kui, ZHANG Rucai, et al. Geochemical features and oil-source correlation of crude oils from JZ20 oil field on the northern margin of Liaoxi Uplift, Bohai Bay Basin[J]. Petroleum Geology & Experiment, 2018, 40(3): 410-417. doi: 10.11781/sysydz201803410 [33] 朱扬名, 钟荣春, 蔡勋育, 等. 川中侏罗系原油重排藿烷类化合物的组成及成因探讨[J]. 地球化学, 2007, 36(3): 253-260. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHX200703003.htmZHU Yangming, ZHONG Rongchun, CAI Xunyu, et al. Composition and origin approach of rearranged hopanes in Jurassic oils of central Sichuan Basin[J]. Geochimica, 2007, 36(3): 253-260. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHX200703003.htm [34] 赵孟军, 张水昌. 17α(H)-重排藿烷在塔里木盆地中的指相意义[J]. 石油勘探与开发, 2011, 28(1): 36-38. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200101011.htmZHAO Mengjun, ZHANG Shuichang. The special sedimentary facies indicated by 17α(H)-diahopanes in Tarim Basin[J]. Petroleum Exploration and Development, 2011, 28(1): 36-38. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200101011.htm [35] 肖中尧, 黄光辉, 卢玉红, 等. 库车坳陷却勒1井原油的重排藿烷系列及油源对比[J]. 石油勘探与开发, 2004, 31(2): 35-37. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200402008.htmXIAO Zhongyao, HUANG Guanghui, LU Yuhong, et al. Rearranged hopanes in oils from the Quele 1 well, Tarim Basin, and the significance for oil correlation[J]. Petroleum Exploration and Development, 2004, 31(2): 35-37. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200402008.htm [36] 柳广弟, 杨伟伟, 冯渊, 等. 鄂尔多斯盆地陇东地区延长组原油地球化学特征及成因类型划分[J]. 地学前缘, 2013, 20(2): 108-115. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201302015.htmLIU Guangdi, YANG Weiwei, FENG Yuan, et al. Geochemical characteristics and genetic types of crude oil from Yanchang Formation in Longdong area, Ordos Basin[J]. Earth Science Frontiers, 2013, 20(2): 108-115. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201302015.htm [37] 罗明霞, 夏永涛, 邵小明, 等. 塔里木盆地顺北油气田不同层系原油地球化学特征对比及成因分析[J]. 石油实验地质, 2019, 41(6): 849-854. doi: 10.11781/sysydz201906849LUO Mingxia, XIA Yongtao, SHAO Xiaoming, et al. Geochemical characteristics and origin of oil from different strata in Shunbei oil and gas field, Tarim Basin[J]. Petroleum Geology & Experiment, 2019, 41(6): 849-854. doi: 10.11781/sysydz201906849 [38] 姜乃煌, 黄第藩, 朱浮庆, 等. 不同沉积环境地层中的芳烃分布特征[J]. 石油学报, 1994, 15(3): 42-50. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB403.005.htmJIANG Naihuang, HUANG Difan, ZHU Fuqing, et al. Distribution characteristics of aromatics in formations under different sedimentary environments[J]. Acta Petrolei Sinica, 1994, 15(3): 42-50. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB403.005.htm [39] PETERS K E, WALTERS C C, MOLDOWAN J M. The biomarker guide, volume 2: biomarkers and isotopes in the petroleum exploration and earth history[M]. 2nd ed. Cambridge: Cambridge University Press, 2005. [40] 陈建平, 魏军, 倪云燕, 等. 酒西坳陷原油地球化学特征与成熟度分类[J]. 石油学报, 2018, 39(5): 491-503. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201805001.htmCHEN Jianping, WEI Jun, NI Yunyan, et al. Geochemical features and maturity classification of crude oil in the Jiuxi Depression, Jiuquan Basin[J]. Acta Petrolei Sinica, 2018, 39(5): 491-503. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201805001.htm [41] BONILLA J V, ENGEL M H. Chemical and isotopic redistribution of hydrocarbons during migration: laboratory simulation experiments[J]. Organic Geochemistry, 1986, 10(1/3): 181-190. [42] 段毅, 彭德华, 张晓宝, 等. 柴达木盆地原油碳同位素组成的主控因素与成因类型[J]. 沉积学报, 2003, 21(2): 355-359. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200302026.htmDUAN Yi, PENG Denghua, ZHANG Xiaobao, et al. Main controlling factors and genetic types of carbon isotopic compositions for crude oils from the Qaidam Basin, China[J]. Acta Sedimentologica Sinica, 2003, 21(2): 355-359. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200302026.htm