Abstract
In order to investigate the hydrocarbon generation mechanism of shale oil of the Funing Formation in the Guanzhen subsag of the Subei basin, experiments such as TOC, rock pyrolysis, reflectance determination of the vitrinite, organic maceral identification, soluble organic matter extraction, and gas chromatography–mass spectrometry analysis were conducted on the E1f4 section shale of well GY1 in Guanzhen subsag. As shown in the results of TOC, pyrolysis, and maceral identification, organic matter abundance of the E1f4 section shale of the Guanzhen subsag GY1 well is high. As found in combination of organic microscopic composition of the samples and composition of biomarker compounds, the E1f4 section shale contains unique hydrocarbon generation parent material; and the shale is of type I and type II1 organic matter in the low maturity-maturity stage, which is highly capable in oil production.
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References
ASTM D7708–14 (2014) Standard test method for microscopical determination of the reflectance of vitrinite dispersed in sedimentary rocks, ASTM International, West Conshohocken, PA. www.astm.org
Chen J (1996) Oil and gas generation and migration in Jiudong basin. Petroleum Industry Press, Bei**g, p p212
Cheng Q, Zhang M, Li H (2019a) Anomalous distribution of steranes in deep lacustrine facies low maturity-maturity source rocks and oil of Funing formation in Subei basin. J Pet Sci Eng 181:106190. https://doi.org/10.1016/j.petrol.2019.106190
Cheng Q, Zhang M, Huang G (2019b) Even-carbon predominance of monomethyl branched alkanes in Humic coal from Junggar basin, NW China. Acta Geochimica. https://doi.org/10.1007/s11631-019-00,372-8
Cheng Q, Huang G, Zhang M (2021) Inhibitory mechanism of isomerization of regular steranes in geological bodies. Arab J Geosci 14(10):1–17. https://doi.org/10.1007/s12517-021-07,236-7
Connan J, Cassou AM (1980) Properties of gases and petroleum liquids derived from terrestrial kerogen at various maturation levels. Geochim Cosmochim Acta 44(1):1–23. https://doi.org/10.1016/0016-7037(80)90,173-8
Deng Y (2005) Transfer station model of oil–gas migration formed by fault-sandbody. China Pet Explor. 10(6):14–17 (CNKI:SUN:KTSY.0.2005–06–003)
Douglas AG, Eglinton G, Maxwell JR et al (1968) The Botryococcenes—hydrocarbons of novel structure from the alga Botryococcus braunii. Kützing. Phytochemistry 7(12):2157–2171. https://doi.org/10.1016/S0031-9422(00)85,672-1
Ficken KJ, Li B, Swain DL, Eglinton G (2000) An n-alkane proxy for the sedimentary inputs of submerged / floating freshwater aquatic macrophytes. Org Geochem 31:745–749. https://doi.org/10.1016/S0146-6380(00)00,081-4
Fu X, Wang X, Liu S et al (2004) A preliminary study on basic patterns of hydrocarbon accumulation in Guanzhen subsag in Hongze sag. Henan Petroleum. 18(5):4–6. https://doi.org/10.3969/j.issn.1673-8217.2004.05.002
Fu X (2009) The structure sedimentation model and reservoir forming of little half graben basin: a case study of Guanzhen subsag in Northern Jiangsu basin. Geol Sci Technol Inf 28(2):77–80. https://doi.org/10.3969/j.issn.1000-7849.2009.02.014
He C (1981) Tertiary pediastrum (chlorophyta) and Botryococcus (Xanthophyta) from the coastal region of Beibu gulf. Acta Palaeontol Sin 20(02):115–126.
Huang D, Zhang D, Wang P et al (2003) Genetic mechanism and accumulation conditions of immature oil in China. Petroleum Industry Press, Bei**g, pp 511–547
ISO 7404–2. Methods for the petrographic analysis of coals – Part 2: Method of preparing coal samples. International Organization for Standardization, ISO 7404–2:2009(en). www.iso.org/standard/42832.html
ISO 7404–5. Methods for the petrographic analysis of coals—Part 5: Methods of preparing coal samples. International Organization for Standardization, 2009. www.iso.org/standard/42798.html
Peters KE, Walters CC, Moldwan JM (2005) The biomarker guider (2nd Edition) [M]. Cambridge University Press, New York
Philp RP (1985) Fossil fuel biomarkers [M]. Elsevier, New York, pp 1–294
Pickel W, Kus J, Flores D, Kalaitzidis S, Christanis K, Cardott BJ, Misz-Kennan M, Rodrigues S, Hentschel A, Hamor-Vido M, Crosdale P, Wagner N, ICCP (2017) Classification of liptinite–ICCP System 1994. Int J Coal Geol. 169:40–61. https://doi.org/10.1016/j.coal.2016.11.004
Shang H (1990) Organic geochemistry and fluorescence microscopy. Petroleum Industry Press, Bei**g
Song D, Wang T, Zhang M et al (2021) Organic geochemical characteristics and the geological significance of bitumen from Tieling Formation of Shuangdong Anticline in North Hebei Depression. J Yangtze Univ (Nat Sci Ed) 18(1):1–10. https://doi.org/10.16772/j.cnki.1673-1409.20201203.002
Song Y (1991) Study on hydrocarbon of Botryococcus. Oil Gas Geol 12(01):22–33. https://doi.org/10.11743/ogg19910103
Wake LV, Hillen LW (2010) Study of a bloom of the oil-rich alga Botryococcus braunii in the Darwin River Reservoir (p 1637–1656). Biotechnol Bioeng 22(8):1637–1656. https://doi.org/10.1002/bit.260220808
Wang T (1995) Formation mechanism and distribution of low mature oil. Petroleum Industry Press, Bei**g, pp 151
Wang X, Zhao L, Song Y (1996) Gas chromatography- mass spectrometric analyses of hydrocarbons produced by different strains of Botryococcus braunii. Acta Microbiol Sin 8(4):284–291. https://doi.org/10.13343/j.cnki.wsxb.1996.04.007
Wenke F, **aodi D (2006) Oil and gas geological features and next step exploration domain in Hongze Depression in Subei basin. Petroleum Geology&Oilfield Development in Daqing 25(3):31–34. https://doi.org/10.3969/j.issn.1000-3754.2006.03.011
Yang B, Liang X, Ma X et al (2008) Geochemical feature of low-mature crude oil in subsag of Guanzhen in Subei basin. **njiang Pet Geol. 29(5):553–556 (CNKI:SUN:XJSD.0.2008–05–007)
Zhang M, Cheng Q (2021) Distribution and significance of high abundance C29 regular sterane in the crude oil of Lower Paleozoic in Tarim basin. J Yangtze Univ (Nat Sci Ed) 18(1):11–29. https://doi.org/10.16772/j.cnki.1673-1409.2021.01.001
Zhou Z, Wang W, Bian L (2005) Algae in immature to low-maturity source rocks in Subei Basin, editor: Mao Fengming, Dai **g Petroleum exploration and development technology of complex small fault block. China Petrochemical Press, Bei**g, pp 55–59
Zou H, ** Y, Huang G (1999) Fault sealing and its influence on petroleum migration and accumulation. J Jianghan Pet Inst 21(1):9–12. https://doi.org/10.3969/j.issn.1000-9752.1999.01.003
Funding
This research was financially supported by the Science and technology project of PetroChina Zhejiang Oilfield Company (No.kt2020-08–01) and the National Natural Science Foundation of China (No. 41772124).
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Cheng, Q., Chen, X., Zhang, J. et al. Organic geochemical characteristics and shale oil geological significance of E1f4 in the GY1 well, Guanzhen subsag, Subei basin. Arab J Geosci 15, 376 (2022). https://doi.org/10.1007/s12517-021-09121-9
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DOI: https://doi.org/10.1007/s12517-021-09121-9