BIOMARKER CHARACTERISTICS OF THE SOURCE ROCKS OF BEIPIAO FORMATION IN NIUYINGZI SAG, WESTERN LIAONING: A Case Study of LLD1 Well
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摘要:
采用气相色谱、气相色谱-质谱技术, 研究了辽西牛营子凹陷辽凌地1井1527.91~1722.78 m(未见底)北票组烃源岩的生物标志化合物特征, 剖析其沉积环境、有机质生源、有机质热演化程度等方面的信息. 牛营子凹陷北票组烃源岩样品的正构烷烃相关参数间接表征烃源岩成熟度较低, 多为未成熟-低成熟阶段; 有机质输入以陆源输入为主, 有部分低等生物输入; Pr/Ph值主要介于0.94~5.01之间, 平均为3.40, 具有典型煤系地层有机质特征, 形成于偏氧化性环境; C24TeT/C26TT-(C20 +C21)TT/(C23+C24)TT值整体偏高, 指示一种高等植物来源; C24-四环二萜/C26三环萜烷比值分布于1.15~5.28, 平均值为2.76, 表明其陆源高等植物贡献较为充足; 伽马蜡烷指数分布在0~0.04, 平均值为0.02, 反映当时的沉积环境为淡水环境; 在m/z217质量色谱图中样品甾烷呈现C29甾烷占优势的反"L"型, 表示为高等植物输入占绝对优势. 综合研究认为牛营子凹陷北票组烃源岩形成于淡水的偏氧化性环境, 具有典型煤系地层有机质特征, 有机质来源为陆源高等植物贡献, 具有油气勘探前景.
Abstract:By using gas chromatography and gas chromatography-mass spectrometry, the paper studies the biomarker compound characteristics of Beipiao Formation source rocks from LLD1 well at the depth of 1527.91-1722.78 m (bottom unreached) in Niuyingzi sag of western Liaoning, and analyzes the sedimentary environment, source and thermal evaluation degree of organic matter. The n-alkane relative parameters of source rock samples indirectly indicate that the maturity of source rocks is low, mostly in immature-low mature stage. The organic input is mainly terrestrial source, with some lower organisms. The Pr/Ph ratio is 0.94-5.01, averagely 3.40, with the characteristics of organic matter in typical coal measure strata, formed in oxidizing environment. The C24TeT/C26TT-(C20+C21)TT/(C23+C24)TT value is generally high, indicating the source of higher plants. The C24-tetracyclic diterpene/C26 tricyclic terpane ratio is 1.15-5.28, averagely 2.76, reflecting that the terrestrial higher plants contribute a lot. The gammacerane index of 0-0.04, averagely 0.02, show a freshwater sedimentary environment. The sterane in source rock samples, showing an inverse L-shape with dominant C29 sterane in the m/z217 gas chromatogram, indicates that the higher plant input is absolutely dominant. From the above study, it is considered that the Beipiao Formation source rocks in Niuyingzi sag were formed in the oxidizing environment of freshwater, with the characteristics of organic matter in typical coal measure strata. The organic matter is derived from terrestrial higher plants, which has oil-gas exploration prospect.
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Key words:
- Niuyingzi sag /
- Beipiao Formation /
- source rock /
- biomarker compound /
- western Liaoning
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表 1 辽西牛营子凹陷辽凌地1井北票组烃源岩生物标志物化合物参数表
Table 1. Biomarker compound parameters of Beipiao Formation source rocks from LLD1 well in Niuyingzi sag, western Liaoning
深度/m TOC/% Ro/% Pr/nC17 Ph/nC18 Pr/Ph （C20+C21）TT/（C23+C24）TT C24TET/C26TT Ts/Tm Ga/C30H C31αβ22S/（22S+22R） 规则甾烷 C27/C29 C27/% C28/% C29/% 1534.2 6.21 0.62 1.71 0.37 3.07 0.88 2.58 0.06 0.03 0.57 6.25 16.75 77.00 0.08 1538.5 5.08 0.62 1.59 0.23 5.01 5.40 5.28 0.00 0.00 0.56 4.15 14.16 81.69 0.05 1545 3.56 0.57 1.72 0.46 2.06 1.00 1.94 0.05 0.04 0.57 4.89 21.78 73.33 0.07 1560 3.48 0.57 1.84 0.40 3.52 1.20 1.49 0.09 0.03 0.58 8.87 17.84 73.29 0.12 1570 0.753 0.59 0.82 0.73 0.94 0.80 1.15 0.08 0.03 0.58 20.47 22.00 57.53 0.36 1584 6.73 0.59 0.95 0.19 3.95 2.13 3.53 0.09 0.03 0.58 6.71 25.25 68.05 0.10 1598 1.21 0.61 1.44 0.35 3.14 1.96 1.53 0.00 0.03 0.57 4.83 17.74 77.43 0.06 1620 17.2 0.59 2.45 0.63 3.14 / 1.52 0.04 0.02 0.58 3.71 17.00 79.29 0.05 1644 37.9 0.59 1.57 0.28 4.25 5.59 4.19 0.03 0.02 0.58 2.22 21.18 76.60 0.03 1669 9.09 0.6 1.75 0.29 4.47 3.56 3.99 0.03 0.02 0.58 4.37 13.61 82.02 0.05 1679 14.1 0.62 1.05 0.22 4.24 3.30 3.57 0.04 0.03 0.58 6.10 15.91 77.99 0.08 1688 34.9 0.62 2.28 0.37 5.00 2.52 2.32 0.04 0.02 0.58 7.08 8.76 84.15 0.08 
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表 2 辽凌地1井北票组烃源岩气相色谱参数表
Table 2. Gas chromatographic parameters of Beipiao Formation source rocks from LLD1 well
深度/m CPI OEP ∑nC21-/∑nC22+ （nC21+nC22）/（nC28+nC29） Pr/nC17 Ph/nC18 Pr/Ph 主峰碳数 1534.2 1.66 1.07 0.39 1.14 1.71 0.37 3.07 nC25 1538.5 1.64 1.22 0.49 1.70 1.59 0.23 5.01 nC23 1545 1.35 1.26 0.28 1.65 1.72 0.46 2.06 nC23 1560 1.63 1.24 0.43 1.10 1.84 0.40 3.52 nC23 1570 1.71 1.30 0.48 1.53 0.82 0.73 0.94 nC23 1584 1.51 1.42 0.46 2.34 0.95 0.19 3.95 nC25 1598 1.46 1.40 0.47 1.70 1.44 0.35 3.14 nC25 1620 1.59 1.19 0.48 1.25 2.45 0.63 3.14 nC23 1644 1.61 1.36 0.46 2.33 1.57 0.28 4.25 nC25 1669 1.55 1.26 0.50 1.27 1.75 0.29 4.47 nC25 1679 1.51 1.22 0.69 1.78 1.05 0.22 4.24 nC23 1688 1.58 1.19 0.52 1.14 2.28 0.37 5.00 nC23
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[1] 李永飞, 陈树旺. 辽西地区金岭寺-羊山盆地油气资源调查新发现[J]. 地质通报, 2014, 33(9): 1463-1464. doi: 10.3969/j.issn.1671-2552.2014.09.023
Li Y F, Chen S W. A Newly Discovered oil and gas resources in Jinyang Basin, Western Liaoning[J]. Geological Bulletin of China, 2014, 33(9): 1463-1464. (in Chinese) doi: 10.3969/j.issn.1671-2552.2014.09.023
[2] 陈树旺, 李永飞. 松辽盆地外围油气地质调查进展[J]. 地质与资源, 2020, 29(4): 401. doi: 10.3969/j.issn.1671-1947.2020.04.015 http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10223.shtml
Chen S W, Li Y F. Progress of the geological survey for oil-gas in surroundings of Songliao Basin[J]. Geology and Resources, 2020, 29 (4): 401. doi: 10.3969/j.issn.1671-1947.2020.04.015 http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10223.shtml
[3] 孙求实, 宗文明, 王斯佳, 等. 辽西牛营子凹陷中元古界推覆体下发现早中侏罗世新地层[J/OL]. 中国地质, https://kns.cnki.net/kcms/detail/11.1167.P.20210111.1050.002.html, 2021-01-11.
Sun Q S, Zong W M, Wang S J, et al. The new discovery of the Jurassic strata under the middle Proterozoic thrust-nappe in Niuyingzi depression, westhern Liaoning Province[J/OL]. Geology in China, https://kns.cnki.net/kcms/detail/11.1167.P.20210111.1050.002.html, 2021-01-11.
[4] Sun Q S, Xiao F, Gao X Y, et al. A new discovery of Mesoproterozoic erathem oil, and oil-source correlation in the Niuyingzi area of western Liaoning Province, NE China[J]. Marine and Petroleum Geology, 2019, 110: 606-620.
[5] 陈树旺, 丁秋红, 郑月娟, 等. 松辽盆地外围新区、新层系——油气基础地质调查进展与认识[J]. 地质通报, 2013, 32(8): 1147-1158. doi: 10.3969/j.issn.1671-2552.2013.08.002
Chen S W, Ding Q H, Zheng Y J, et al. New areas and series of strata on the periphery of Songliao Basin: The progress and recognition based on foundational geological survey for oil and gas resources[J]. Geological Bulletin of China, 2013, 32(8): 1147-1158. doi: 10.3969/j.issn.1671-2552.2013.08.002
[6] Zhang T, Sun S L, Sun Q S, et al. Geochemical characteristics of the lower Jurassic black shales in the Jinyang Basin, northeast China: implications for organic matter accumulation[J]. IOP Conference Series: Earth and Environmental Science, 2019, 360: 012051.
[7] Sun Q S, Gao X Y, Zong W M, et al. A newly discovered oil-bearing Mesoproterozoic Erathem within the Niu D1 well, Liaoxi depression, Yanliao faulted depression zone, NE China[J]. Acta Geologica Sinica (English Edition), 2020, 94(1): 202-203.
[8] 刘淼, 张渝金, 孙守亮, 等. 辽西金羊盆地北票组孢粉组合及其时代和古气候意义[J]. 地球科学, 2019, 44(10): 3393-3408. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201910016.htm
Liu M, Zhang Y J, Sun S L, et al. Palynological assemblages of Beipiao formation in Jinyang Basin of West Liaoning, and their age and Paleoclimatic significances[J]. Earth Science, 2019, 44(10): 3393-3408. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201910016.htm
[9] 孙守亮, 李永飞, 郜晓勇, 等. 辽西金羊盆地下侏罗统北票组页岩气地球化学特征及其成因[J]. 地质通报, 2017, 36(4): 575-581. doi: 10.3969/j.issn.1671-2552.2017.04.011
Sun S L, Li Y F, Gao X Y, et al. An analysis of the genesis and geochemical characteristics of shale gas in Lower Jurassic Beipiao Formation in Jinyang Basin[J]. Geological Bulletin of China, 2017, 36(4): 575-581. doi: 10.3969/j.issn.1671-2552.2017.04.011
[10] 孙守亮, 李永飞, 孙鹏, 等. 辽西金羊盆地岩浆岩对北票组烃源岩演化影响的初步分析[J]. 地质论评, 2019, 65(S1): 175-176. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP2019S1085.htm
Sun S L, Li Y F, Sun P, et al. Preliminary analysis of the influence of magmatic rocks on the evolution of source rocks of Beipiao Formation in Jinyang Basin, western Liaoning Province[J]. Geological Review, 2019, 65(S1): 175-176. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP2019S1085.htm
[11] 孙鹏, 唐友军, 张坤. 辽西金羊盆地北票组一类新的油砂地球化学特征及意义[J]. 地质与资源, 2020, 29(4): 335-341. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10213.shtml
Sun P, Tang Y J, Zhang K. A new type of oil sands in the Beipiao Formation of Jinyang Basin, western Liaoning Province: Geochemical characteristics and geological implication[J]. Geology and Resources, 2020, 29(4): 335-341. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10213.shtml
[12] 唐友军, 刘客, 孙鹏, 等. 辽西金羊盆地北票组油砂芳烃地球化学特征及其地质意义[J]. 长江大学学报(自然科学版), 2020, 17 (2): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-CJDL202002001.htm
Tang Y J, Liu K, Sun P, et al. Geochemical characteristics and geological significance of aromatic hydrocarbons in oil sand of Beipiao formation in Jinyang Basin in western Liaoning Province[J]. Journal of Yangtze University(Natural Science Edition), 2020, 17(2): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-CJDL202002001.htm
[13] 孙守亮, 张涛, 刘淼, 等. 辽西金羊盆地北票组沉积环境与烃源岩成因[J]. 东北石油大学学报, 2019, 43(6): 1-12. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY201906002.htm
Sun S L, Zhang T, Liu M, et al. Sedimentary environment and genesis of source rocks of Beipiao Formation in Jinyang Basin, Western Liaoning[J]. Journal of Northeast Petroleum University, 2019, 43(6): 1-12. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY201906002.htm
[14] 易勇进, 苏培东, 田振兴, 等. 金羊盆地非煤隧道油气成因及运移模式研究[J]. 地质灾害与环境保护, 2020, 31(2): 51-56. https://www.cnki.com.cn/Article/CJFDTOTAL-DZHB202002010.htm
Yi Y J, Su P D, Tian Z X, et al. Research on oil and gas genesis and migration model of non coal tunnel in Jinyang Basin[J]. Journal of Geological Hazards and Environment Preservation, 2020, 31(2): 51-56. https://www.cnki.com.cn/Article/CJFDTOTAL-DZHB202002010.htm
[15] 孙求实, 袁杰, 宗文明, 等. 广域电磁法在辽西地区牛营子凹陷油气资源潜力评价中的应用[J]. 物探与化探, 2019, 43(1): 64-69. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH201901007.htm
Sun Q S, Yuan J, Zong W M, et al. The application of wide field electromagnetic method to the oil and gas exploration of Niuyingzi sag in Liaoxi area[J]. Geophysical and Geochemical Exploration, 2019, 43(1): 64-69. https://www.cnki.com.cn/Article/CJFDTOTAL-WTYH201901007.htm
[16] 蒋兴超, 陈树旺, 唐友军, 等. 内蒙古突泉盆地ZK-WJT钻井下侏罗统红旗组生烃潜力[J]. 地质通报, 2013, 32(8): 1236-1242. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201308010.htm
Jiang X C, Chen S W, Tang Y J, et al. The evaluation of hydrocarbon production potential of well ZK-WJT in Lower Jurassic Hongqi Formation within Tuquan basin of Inner Mongolia[J]. Geological Bulletin of China, 2013, 32(8): 1236-1242. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201308010.htm
[17] 唐友军, 孔雪, 蒋兴超, 等. 内蒙古额济纳旗大狐狸山地区干泉组烃源岩生物标志化合物特征及意义[J]. 地质通报, 2013, 32(4): 652-660. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201304014.htm
Tang Y J, Kong X, Jiang X C, et al. Biomarkers of hydrocarbon source rocks of Ganquan Formation in Dahulishan area, Ejin Banner, Inner Mongolia[J]. Geological Bulletin of China, 2013, 32(4): 652-660. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201304014.htm
[18] 卢双舫, 张敏. 油气地球化学[M]. 北京: 石油工业出版社, 2008: 201-212.
Lu S F, Zhang M. Hydrocarbon geochemistry[M]. Beijing: Petroleum Industry Press, 2008: 201-212. (in Chinese)
[19] 侯读杰, 冯子辉. 油气地球化学[M]. 北京: 石油工业出版社, 2011: 201-242.
Hou D J, Feng Z H. Hydrocarbon geochemistry[M]. Beijing: Petroleum Industry Press, 2011: 201-242. (in Chinese)
[20] Huang W Y, Meinschein W G. Sterols as ecological indicators[J]. Geochimica et Cosmochimica Acta, 1979, 43(5): 739-745.
[21] Peters K E, Moldowan J M. The biomarker guide: interpreting molecular fossils in petroleum and ancient sediments[M]. Englewood Cliffs, New Jersey: Prentice Hall Inc., 1993: 215-225.
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