Sedimentary environment and organic matter enrichment of Paleogene inter-salt strata in Q ianjiang sag: a case study from 10th rhythmite of the Lower Member 3 of Q ianjiang Formation

doi:10.7623/syxb202205003

Acta Petrolei Sinica ›› 2022, Vol. 43 ›› Issue (5): 605-616,636.DOI: 10.7623/syxb202205003

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Sedimentary environment and organic matter enrichment of Paleogene inter-salt strata in Q ianjiang sag: a case study from 10th rhythmite of the Lower Member 3 of Q ianjiang Formation

Cai Yuan¹, Kong Xiangxin^1,2, Jiang Zaixing^1,2, Ge Taoyuan^1,2, Chen Fengling³, Wu Shiqiang³, Zhang Liang³

1. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
2. MOE Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism, China University of Geosciences, Beijing 100083, China;
3. Research Institute of Exploration and Development, Sinopec Jianghan Oilfield Company, Hubei Wuhan 430223, China

Received:2021-10-19 Revised:2022-02-14 Published:2022-05-28

潜江凹陷古近系盐间地层沉积环境与有机质富集——以潜江组三段下亚段10号韵律为例

蔡媛¹, 孔祥鑫^1,2, 姜在兴^1,2, 葛涛元^1,2, 陈凤玲³, 吴世强³, 张亮³

1. 中国地质大学(北京)能源学院北京 100083;
2. 中国地质大学(北京)教育部海相储层演化与油气富集机理重点实验室北京 100083;
3. 中国石油化工股份有限公司江汉油田分公司勘探开发研究院湖北武汉 430223

通讯作者: 孔祥鑫,男,1990年5月生,2020年获中国地质大学(北京)博士学位,现为中国地质大学(北京)能源学院讲师,主要从事细粒沉积学与非常规油气储层研究。Email:kongxiangxin@cugb.edu.cn
作者简介:蔡媛,女,2000年8月生,现为中国地质大学(北京)能源学院本科生,主要从事沉积学研究。Email:13311581943@139.com
基金资助:
国家自然科学基金面上项目（No.41772029）、中国博士后科学基金项目（2020M680624）和中国地质大学（北京）大学生创新创业训练计划项目（S202111415094）资助。

Abstract

Abstract: Multiple inter-salt layers composed of organic-rich fine-grained sedimentary rocks are developed in the Qianjiang Formation, which is a potential target for shale oil exploration in Qianjiang sag. However, the unclear understanding of the mechanism of organic matter enrichment in salt lakes restricts the study of shale oil accumulation mechanism. The geological data including core, thin section, X-ray analysis and major, trace, rare earth elements were integrated to study the enrichment mechanism of organic matter in the inter-salt stratum of the 10th rhythmite of the Lower Member 3 of Qianjiang Formation. According to the mineral composition and lithofacies types, the inter-salt stratum of the 10th rhythmite of the Lower Member 3 of Qianjiang Formation can be divided into three sections. The upper and lower sections are composed of bedded dolomitic mudstone and glauberite, with average TOC content of 0.83%, while the middle section is composed of laminated marlstone and laminated dolomitic mudstone, with an average TOC content of 1.35%. The crystal morphology of pyrite and geochemical characteristics of elements indicates that inter-salt layers in the Qianjiang sag has recorded hydrothermal activity. During the sedimentary period of the middle section of inter-salt layers, the climate was relatively humid, with a strong reducing condition, low salinity and high biological productivity. The upper and lower sections of inter-salt layers were formed in a dry and hot climate, with a weak reducing condition, high salinity and low biological productivity. This study indicates that the enrichment of organic matter in inter-salt layers of Qianjiang sag was resulted from the hydrothermal activity and climate change. The hydrothermal activity played an important role in improving the biological productivity in salt lakes, which brought nutrients to the surface waters.The dry-wet changes of paleoclimate can affect the preservation of sedimentary organic matter by controlling the changes of redox and salinity of the salt lake.

Key words: salt lake, hydrothermal activity, organic matter enrichment, Qianjiang sag, sedimentary environment

摘要： 潜江凹陷潜江组发育多套富有机质的盐间细粒沉积岩，是潜在的页岩油勘探目标，对盐湖环境有机质富集机制的认识不清制约了页岩油成藏机理的研究。以潜江组三段（潜三段）下亚段10号韵律盐间层为研究对象，综合岩心、岩石薄片、X射线衍射矿物分析与常量、微量、稀土元素分析等地质资料，探讨了潜江凹陷盐间地层有机质的富集机理。根据物质组成和岩相类型，将潜三段下亚段10号韵律盐间层划分为3段，其中，上段、下段由层状白云质泥岩和钙芒硝岩组成，总有机碳（TOC）平均含量为0.83%；中段由纹层状白云质泥岩和纹层状灰质泥岩组成，TOC平均含量为1.35%。盐间层中段黄铁矿的晶体形态、元素地球化学特征反映热液活动参与其沉积。盐间层中段沉积期，古气候相对湿润，水体还原性较强、盐度偏低、生物生产力高；盐间层上段和下段形成于干热古气候条件，沉积水体还原性较弱、盐度高、生物生产力低。潜江凹陷盐间层有机质的富集是热液活动和气候变化共同作用的结果。其中，热液活动为表层水体带来营养物质，利于盐湖生物繁盛和生产力水平提高；古气候的干湿变化通过改变盐湖水体的氧化还原性和盐度，进而影响沉积有机质的保存。

关键词: 盐湖, 热液, 有机质富集, 潜江凹陷, 沉积环境

CLC Number:

TE122

Cai Yuan, Kong Xiangxin, Jiang Zaixing, Ge Taoyuan, Chen Fengling, Wu Shiqiang, Zhang Liang. Sedimentary environment and organic matter enrichment of Paleogene inter-salt strata in Q ianjiang sag: a case study from 10th rhythmite of the Lower Member 3 of Q ianjiang Formation[J]. Acta Petrolei Sinica, 2022, 43(5): 605-616,636.

蔡媛, 孔祥鑫, 姜在兴, 葛涛元, 陈凤玲, 吴世强, 张亮. 潜江凹陷古近系盐间地层沉积环境与有机质富集——以潜江组三段下亚段10号韵律为例[J]. 石油学报, 2022, 43(5): 605-616,636.

References

[1] JARVIE D M.Shale resource systems for oil and gas:part 2-shale-oil resource systems[M]//BREYER J A.Shale Reservoirs-Giant Resources for the 21st Century.Tulsa:American Association of Petroleum Geologists, 2012:89-119.
[2] 金之钧, 王冠平, 刘光祥, 等.中国陆相页岩油研究进展与关键科学问题[J].石油学报, 2021, 42(7):821-835.
JIN Zhijun, WANG Guanping, LIU Guangxiang, et al.Research progress and key scientific issues of continental shale oil in China[J].Acta Petrolei Sinica, 2021, 42(7):821-835.
[3] 姜在兴, 梁超, 吴靖, 等.含油气细粒沉积岩研究的几个问题[J].石油学报, 2013, 34(6):1031-1039.
JIANG Zaixing, LIANG Chao, WU Jing, et al.Several issues in sedimentological studies on hydrocarbon-bearing fine-grained sedimentary rocks[J].Acta Petrolei Sinica, 2013, 34(6):1031-1039.
[4] JIANG Zaixing, KONG Xiangxin, YANG Yepeng, et al.Multi-source genesis of continental carbonate-rich fine-grained sedimentary rocks and hydrocarbon sweet spots[J].Petroleum Exploration and Development, 2021, 48(1):26-27.
[5] KONG Xiangxin, JIANG Zaixing, HAN Chao, et al.Organic matter enrichment and hydrocarbon accumulation models of the marlstone in the Shulu sag, Bohai Bay Basin, northern China[J].International Journal of Coal Geology, 2020, 217:103350.
[6] WARREN J K.Shallow-water evaporitic environments and their source rock potential[J].Journal of Sedimentary Research, 1986, 56(3):442-454.
[7] CARLK J P, PHILP R P.Geochemical characterization of evaporite and carbonate depositional environments and correlation of associated crude oils in the Black Creek Basin, Alberta[J].Bulletin of Canadian Petroleum Geology, 1989, 37(4):401-416.
[8] SONG Mingshui, LIU Huimin, WANG Yong, et al.Enrichment rules and exploration practices of Paleogene shale oil in Jiyang depression, Bohai Bay Basin, China[J].Petroleum Exploration and Development, 2020, 47(2):225-235.
[9] GUO Pei, LIU Chiyang, Gibert L, et al.How to find high-quality petroleum source rocks in saline lacustrine basins:a case study from the Cenozoic Qaidam Basin, NW China[J].Marine and Petroleum Geology, 2020, 111:603-623.
[10] 支东明, 唐勇, 杨智峰, 等.准噶尔盆地吉木萨尔凹陷陆相页岩油地质特征与聚集机理[J].石油与天然气地质, 2019, 40(3):524-534.

ZHI Dongming, TANG Yong, YANG Zhifeng, et al.Geological characteristics and accumulation mechanism of continental shale oil in Jimusaer sag, Junggar Basin[J].Oil & Gas Geology, 2019, 40(3):524-534.
[11] 王建功, 张道伟, 石亚军, 等.柴达木盆地西部地区渐新世下干柴沟组上段盐湖沉积特征[J].吉林大学学报:地球科学版, 2020, 50(2):442-453.
WANG Jiangong, ZHANG Daowei, SHI Yajun, et al.Salt lake depositional characteristics of Upper Member of Lower Ganchaigou Formation, western Qaidam Basin[J].Journal of Jilin University:Earth Science Edition, 2020, 50(2):442-453.
[12] 张斌, 何媛媛, 陈琰, 等.柴达木盆地西部咸化湖相优质烃源岩形成机理[J].石油学报, 2018, 39(6):674-685.
ZHANG Bin, HE Yuanyuan, CHEN Yan, et al.Formation mechanism of excellent saline lacustrine source rocks in western Qaidam Basin[J].Acta Petrolei Sinica, 2018, 39(6):674-685.
[13] KATZ B J.Controlling factors on source rock development-a review of productivity, preservation, and sedimentation rate[M]//HARRIS N B.The Deposition of Organic-Carbon-Rich Sediments:Models, Mechanisms, and Consequences.Tulsa:SEPM Society for Sedimentary Geology, 2005:161-179.
[14] KONG Xiangxin, JIANG Zaixing, HAN Chao, et al.The tight oil of lacustrine carbonate-rich rocks in the Eocene Shulu sag:implications for lithofacies and reservoir characteristics[J].Journal of Petroleum Science and Engineering, 2019, 175:547-559.
[15] 袁晓冬, 姜在兴, 张元福, 等.滦平盆地白垩系陆相页岩油储层特征[J].石油学报, 2020, 41(10):1197-1208.
YUAN Xiaodong, JIANG Zaixing, ZHANG Yuanfu, et al.Characteristics of the Cretaceous continental shale oil reservoirs in Luanping Basin[J]. Acta Petrolei Sinica, 2020, 41(10):1197-1208.
[16] 李耀华, 宋岩, 徐兴友, 等.鄂尔多斯盆地延长组7段凝灰质页岩油层的润湿性及自发渗吸特征[J].石油学报, 2020, 41(10):1229-1237.
LI Yaohua, SONG Yan, XU Xingyou, et al.Wettability and spontaneous imbibition characteristics of the tuffaceous shale reservoirs in the Member 7 of Yanchang Formation, Ordos Basin[J].Acta Petrolei Sinica, 2020, 41(10):1229-1237.
[17] 李婷婷, 朱光有, 赵坤, 等.华南地区南华系大塘坡组黑色岩系地质地球化学特征与有机质富集机制[J].石油学报, 2021, 42(9):1142-1162.
LI Tingting, ZHU Guangyou, ZHAO Kun, et al.Geological, geochemical characteristics and organic matter enrichment of the black rock series in Datangpo Formation in Nanhua system, South China[J].Acta Petrolei Sinica, 2021, 42(9):1142-1162.
[18] XIAO Di, CAO Jian, LUO Bing, et al.Neoproterozoic postglacial paleoenvironment and hydrocarbon potential:a review and new insights from the Doushantuo Formation Sichuan Basin, China[J].Earth-Science Reviews, 2021, 212:103453.
[19] 柳益群, 周鼎武, 焦鑫, 等.深源物质参与湖相烃源岩生烃作用的初步研究——以准噶尔盆地吉木萨尔凹陷二叠系黑色岩系为例[J].古地理学报, 2019, 21(6):983-998.
LIU Yiqun, ZHOU Dingwu, JIAO Xin, et al.A preliminary study on the relationship between deep-sourced materials and hydrocarbon generation in lacustrine source rocks:an example from the Permian black rock series in Jimusar sag, Junggar Basin[J].Journal of Palaeogeography, 2019, 21(6):983-998.
[20] LEE C T A, JIANG Hehe, RONAY E, et al.Volcanic ash as a driver of enhanced organic carbon burial in the Cretaceous[J].Scientific Reports, 2018, 8(1):4197.
[21] GRICE K, SCHOUTEN S, PETERS K E, et al.Molecular isotopic characterisation of hydrocarbon biomarkers in Palaeocene-Eocene evaporitic, lacustrine source rocks from the Jianghan Basin, China[J].Organic Geochemistry, 1998, 29(5/7):1745-1764.
[22] HUANG Chunju, HINNOV L.Astronomically forced climate evolution in a saline lake record of the middle Eocene to Oligocene, Jianghan Basin, China[J].Earth and Planetary Science Letters, 2019, 528:115846.
[23] 曹婷婷, 马媛媛, 黎茂稳, 等.江汉盆地潜江凹陷潜三段盐间烃类特征及其指示意义[J].西安石油大学学报:自然科学版, 2019, 34(2):25-30.
CAO Tingting, MA Yuanyuan, LI Maowen, et al.Hydrocarbon characteristics of inter-salt system in Qian 3 Member of Qianjiang sag, Jianghan Basin and their indication[J].Journal of Xi'an Shiyou University:Natural Science, 2019, 34(2):25-30.
[24] KONG Xiangxin, JIANG Zaixing, ZHENG Youheng, et al.Organic geochemical characteristics and organic matter enrichment of mudstones in an Eocene saline lake, Qianjiang depression, Hubei Province, China[J].Marine and Petroleum Geology, 2020, 114:104194.
[25] WU Lulu, MEI Lianfu, PATON D A, et al.Deciphering the origin of the Cenozoic intracontinental rifting and volcanism in eastern China using integrated evidence from the Jianghan Basin[J].Gondwana Research, 2018, 64:67-83.
[26] 颜开, 刘成林, 王九一, 等.江陵凹陷南缘盐井-申津渡凹地始新统硫同位素特征及古气候和物质来源探讨[J].地质学报, 2018, 92(8):1647-1660.
YAN Kai, LIU Chenglin, WANG Jiuyi, et al.Sulfur isotopic characteristics of Eocene series in the Yanjing-Shenjindu sub-depression in the southern Jiangling depression and its implication for paleoclimate and provenance[J].Acta Geologica Sinica, 2018, 92(8):1647-1660.
[27] 陶国亮, 刘鹏, 钱门辉, 等.潜江凹陷潜江组盐间页岩含油性及其勘探意义[J].中国矿业大学学报, 2019, 48(6):1256-1265.
TAO Guoliang, LIU Peng, QIAN Menhui, et al.Oil-bearing characteristics and exploration significance of inter-salt shale in Qianjiang Formation, Qianjiang depression, Jianghan Basin[J].Journal of China University of Mining & Technology, 2019, 48(6):1256-1265.
[28] 刘心蕊, 吴世强, 陈凤玲, 等.江汉盆地潜江凹陷潜江组盐间页岩油储层特征研究——以潜3⁴-10号韵律为例[J].石油实验地质, 2021, 43(2):268-275.
LIU Xinrui, WU Shiqiang, CHEN Fengling, et al.Characteristics of reservoirs for inter-salt shale oil of Qianjiang Formation, Qianjiang sag, Jianghan Basin:a case study of the Eq₃⁴-10 rhythm[J].Petroleum Geology & Experiment, 2021, 43(2):268-275.
[29] 陈晨, 姜在兴, 孔祥鑫, 等.潜江凹陷潜江组盐间细粒岩沉积特征及其对页岩含油性的控制[J].地学前缘, 2021, 28(5):421-435.
CHEN Chen, JIANG Zaixing, KONG Xiangxin, et al.Sedimentary characteristics of intersalt fine-grained sedimentary rocks and their control on oil-bearing ability of shales in the Qianjiang Formation, Qianjiang sag[J].Earth Science Frontiers, 2021, 28(5):421-435.
[30] 戴世昭.江汉盐湖盆地石油地质[M].北京:石油工业出版社, 1997:1-56.
DAI Shizhao.Petroleum gology of Jianghan saline lacustrine basin[M].Beijing:Petroleum Industry Press, 1997:1-56.
[31] JONES B, MANNING D A C.Comparison of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones[J].Chemical Geology, 1994, 111(1/4):111-129.
[32] ALGEO T J, MAYNARD J B.Trace-element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems[J].Chemical Geology, 2004, 206(3/4):289-318.
[33] WIGNALL P B, TWITCHETT R J.Oceanic anoxia and the end Permian mass extinction[J].Science, 1996, 272(5265):1155-1158.
[34] DONER Z, KUMRAL M, DEMIREL I H, et al.Geochemical characteristics of the Silurian shales from the central Taurides, southern Turkey:organic matter accumulation, preservation and depositional environment modeling[J].Marine and Petroleum Geology, 2019, 102:155-175.
[35] 陈晓慧, 曾建理, 张廷山, 等.川东北地区中侏罗世新田沟期古气候波动的地球化学响应[J].地质学报, 2019, 93(12):3223-3238.
CHEN Xiaohui, ZENG Jianli, ZHANG Tingshan, et al.Geochemical response to paleoclimate fluctuation during Xintiangou Period (Middle Jurassic), northeastern Sichuan[J].Acta Geologica Sinica, 2019, 93(12):3223-3238.
[36] 汤超, 肖鹏, 魏佳林, 等.鄂尔多斯盆地志丹地区安定组泥灰岩地球化学特征及古环境意义[J].地质学报, 2021, 95(8):2537-2552.
TANG Chao, XIAO Peng, WEI Jialin, et al.Geochemical characteristics and paleoenvironmental significance of marls from the Anding Formation in the Zhidan area, Ordos Basin[J].Acta Geologica Sinica, 2021, 95(8):2537-2552.
[37] WEI Wei, ALGEO T J, LU Yangbo, et al.Identifying marine incursions into the Paleogene Bohai Bay Basin lake system in northeastern China[J].International Journal of Coal Geology, 2018, 200:1-17.
[38] 刘刚, 周东升.微量元素分析在判别沉积环境中的应用——以江汉盆地潜江组为例[J].石油实验地质, 2007, 29(3):307-310.
LIU Gang, ZHOU Dongsheng.Application of microelements analysis in identifying sedimentary environment——taking Qianjiang Formation in the Jianghan Basin as an example[J].Petroleum Geology & Experiment, 2007, 29(3):307-310.
[39] ZHANG Luchuan, XIAO Dianshi, LU Shuangfang, et al.Effect of sedimentary environment on the Formation of organic-rich marine shale:insights from major/trace elements and shale composition[J].International Journal of Coal Geology, 2019, 204:34-50.
[40] HATEM B A, Abdullah W H, Hakimi M H, et al.Origin of organic matter and paleoenvironment conditions of the Late Jurassic organic-rich shales from Shabwah sub-basin (western Yemen):constraints from petrology and biological markers[J].Marine and Petroleum Geology, 2016, 72:83-97.
[41] BOYNTON W V.Geochemistry of the rare earth elements:meteorite studies[M]//HENDERSON P.Rare Earth Element Geochemistry.Amsterdam:Elsevier, 1984:63-114.
[42] 王典敷, 汪仕忠.盐湖油田地质[M].北京:石油工业出版社, 1998:1-61.
WANG Dianfu, WANG Shizhong.Geology of Saline Lacustrine facies oilfield[M].Beijing:Petroleum Industry Press, 1998:1-61.
[43] SVERJENSKY D A.Europium redox equilibria in aqueous solution[J].Earth and Planetary Science Letters, 1984, 67(1):70-78.
[44] MICHARD A, ALBARōDE F.The REE content of some hydrothermal fluids[J].Chemical Geology, 1986, 55(1/2):51-60.
[45] 柳益群, 焦鑫, 李红, 等.新疆三塘湖跃进沟二叠系地幔热液喷流型原生白云岩[J].中国科学:地球科学, 2011, 41(12):1862-1871.
LIU Yiqun, JIAO Xin, LI Hong, et al.Prirmary dolostone Formation related to mantle-originated exhalative hydrothermai activities, Permian Yuejingou section, Santanghu area.Xinjiang, NW China[J].Scientia Sinica:Terrae, 2011, 41(12):1862-1871.
[46] KOUZMANOV K, Bailly L, Ramboz C, et al.Morphology, origin and infrared microthermometry of fluid inclusions in pyrite from the Radka epithermal copper deposit, Srednogorie zone, Bulgaria[J].Mineralium Deposita, 2002, 37(6/7):599-613.
[47] CHOI J H, Hariya Y.Geochemistry and depositional environment of Mn oxide deposits in the Tokoro belt, northeastern Hokkaido, Japan[J]. Economic Geology, 1992, 87(5):1265-1274.
[48] CRERAR D A, NAMSON J, SO CHYI M, et al.Manganiferous cherts of the Franciscan assemblage; I, General geology, ancient and modern analogues, and implications for hydrothermal convection at oceanic spreading centers[J].Economic Geology, 1982, 77(3):519-540.
[49] LIANG Chao, WU Jing, JIANG Zaixing, et al.Sedimentary environmental controls on petrology and organic matter accumulation in the upper fourth member of the Shahejie Formation (Paleogene, Dongying depression, Bohai Bay Basin, China)[J].International Journal of Coal Geology, 2018, 186:1-13.
[50] 吴世强, 陈凤玲, 姜在兴, 等.江汉盆地潜江凹陷古近系潜江组白云岩成因[J].石油与天然气地质, 2020, 41(1):201-208.
WU Shiqiang, CHEN Fengling, JIANG Zaixing, et al.Origin of Qianjiang Formation dolostone in Qianjiang sag, Jianghan Basin[J].Oil & Gas Geology, 2020, 41(1):201-208.

Sedimentary environment and organic matter enrichment of Paleogene inter-salt strata in Q ianjiang sag: a case study from 10th rhythmite of the Lower Member 3 of Q ianjiang Formation

潜江凹陷古近系盐间地层沉积环境与有机质富集——以潜江组三段下亚段10号韵律为例

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