Differences in lacustrine source rocks of Liushagang Formation in the Beibuwan Basin

doi:10.7623/syxb201912004

Acta Petrolei Sinica ›› 2019, Vol. 40 ›› Issue (12): 1451-1459.DOI: 10.7623/syxb201912004

• Petroleum Exploration • Previous Articles Next Articles

Differences in lacustrine source rocks of Liushagang Formation in the Beibuwan Basin

Li Youchuan, Lan Lei, Wang Ke, Yang Yongcai

CNOOC Research Institute Co. Ltd., Beijing 100028, China

Received:2018-12-29 Revised:2019-07-30 Online:2019-12-25 Published:2020-01-04

北部湾盆地流沙港组湖相烃源岩的差异

李友川, 兰蕾, 王柯, 杨永才

中海油研究总院有限责任公司北京 100028

通讯作者: 李友川,男,1967年1月生,1990年获成都地质学院矿床地质学专业学士学位,1993年获中国地质大学(北京)煤田油气地质与勘探专业硕士学位,现为中海油研究总院有限责任公司教授级高级工程师,主要从事油气地球化学综合研究。Email:liych@cnooc.com.cn
作者简介:李友川,男,1967年1月生,1990年获成都地质学院矿床地质学专业学士学位,1993年获中国地质大学(北京)煤田油气地质与勘探专业硕士学位,现为中海油研究总院有限责任公司教授级高级工程师,主要从事油气地球化学综合研究。Email:liych@cnooc.com.cn
基金资助:
国家科技重大专项（2016ZX05026-004）资助。

Abstract

Abstract:

The Beibuwan Basin is an important oil-rich basin in the offshore area of China. The oil and gas resources are mainly distributed in Weixi'nan sag, Wushi sag and Fushan sag. The proved oil reserves are about 4.05×10⁸t, but the proved oil and gas reserves of each sag are significantly different. The enrichment degree of hydrocarbon in each sag of the Beibuwan Basin is closely related to the difference in lacustrine source rocks. From Weixi'nan sag to Wushi sag, Maichen sag and Fushan sag, the quality of source rocks in the Paleogene Liushagang Formation overall declines, the organic matter abundance of source rocks decreases, the dominant organic matter type changes from the sapropelic type to the mixed type, and the hydrocarbon generation potential of source rocks decreases. The analysis shows that although in the formation period of source rocks in Liushagang Formation, each sag in the Beibuwan Basin generally had high organic matter productivity in ancient lakes, there is still a certain difference in the organic matter sources of each sag, as well as the preservation conditions of organic matters. From Weixi'nan sag to Wushi sag, Maichen sag, Fushan sag and Haizhong sag, the organic matters from lacustrine algae are reduced, the organic matters from terrestrial higher plants are increased, and the preservation conditions of organic matters tend to be worse.

Key words: Beibuwan Basin, source rock, Liushagang Formation, organic matter productivity, preservation conditions of organic matters

摘要：

北部湾盆地是中国近海重要的富油盆地，油气发现主要集中于涠西南凹陷、乌石凹陷和福山凹陷，探明原油地质储量约为4.05×10⁸t，但各个主要凹陷的探明油气地质储量存在显著差异。北部湾盆地各凹陷的油气富集程度与其湖相烃源岩的差异密切相关，从涠西南凹陷到乌石凹陷，再到迈陈凹陷和福山凹陷，古近系流沙港组烃源岩的品质总体下降，烃源岩的有机质丰度降低，有机质类型从以腐泥型为主变成以混合型占优势，烃源岩的生烃潜力下降。分析表明，尽管北部湾盆地流沙港组烃源岩在形成期各凹陷普遍具有较高的古湖泊有机质生产力，但各凹陷的有机质来源仍然存在差异，有机质保存条件也存在差异，从涠西南凹陷到乌石凹陷，再到迈陈凹陷、福山凹陷和海中凹陷，湖相藻类来源的有机质减少，陆生高等植物来源的有机质增加，有机质保存条件具有变差的趋势。

关键词: 北部湾盆地, 烃源岩, 流沙港组, 有机质生产力, 有机质保存条件

CLC Number:

TE122.1

Li Youchuan, Lan Lei, Wang Ke, Yang Yongcai. Differences in lacustrine source rocks of Liushagang Formation in the Beibuwan Basin[J]. Acta Petrolei Sinica, 2019, 40(12): 1451-1459.

李友川, 兰蕾, 王柯, 杨永才. 北部湾盆地流沙港组湖相烃源岩的差异[J]. 石油学报, 2019, 40(12): 1451-1459.

References

[1] 朱伟林,张功成,高乐.南海北部大陆边缘盆地油气地质特征与勘探方向[J].石油学报,2008,29(1):1-9.
ZHU Weilin,ZHANG Gongcheng,GAO Le.Geological characteristics and exploration objectives of hydrocarbons in the northern continental margin basin of South China Sea[J].Acta Petrolei Sinica,2008,29(1):1-9.
[2] 李春荣,张功成,梁建设,等.北部湾盆地断裂构造特征及其对油气的控制作用[J].石油学报,2012,33(2):195-203.
LI Chunrong,ZHANG Gongcheng,LIANG Jianshe,et al.Characteristics of fault structure and its control on hydrocarbons in the Beibuwan Basin[J].Acta Petrolei Sinica,2012,33(2):195-203.
[3] 谢瑞永,黄保家,李旭红,等.北部湾盆地涠西南凹陷流沙港组烃源岩生烃潜力评价[J].地质学刊,2014,38(4):670-675.
XIE Ruiyong,HUANG Baojia,LI Xuhong,et al.Hydrocarbon generation potential evaluation of source rocks in Liushagang Formation in Weixinan sag of Beibuwan Basin[J].Journal of Geology,2014,38(4):670-675.
[4] 陈善斌,甘华军,时阳,等.北部湾盆地福山凹陷烃源岩地球化学特征及地质意义[J].油气地质与采收率,2015,22(1):14-19.
CHEN Shanbin,GAN Huajun,SHI Yang,et al.Geochemical features and geologic significance of source rocks in Fushan sag,Beibuwan Basin[J].Petroleum Geology and Recovery Efficiency,2015,22(1):14-19.
[5] 傅宁,林青,王柯.北部湾盆地主要凹陷流沙港组二段主力烃源岩再评价[J].中国海上油气,2017,29(5):12-21.
FUN Ning,LIN Qing,WANG Ke.Main source rock reevaluation of Member 2 of Liushagang Formation in the sags of Beibuwan Basin[J].China Offshore Oil and Gas,2017,29(5):12-21.
[6] 刘洋,任拥军,杨希冰,等.北部湾盆地乌石凹陷流沙港组烃源岩地球化学特征[J].沉积与特提斯地质,2018,38(1):103-112.
LIU Yang,REN Yongjun,YANG Xibing,et al.Geochemical signatures of the source rocks from the Liushagang Formation in the Wushi depression,Beibuwan Basin[J].Sedimentary Geology and Tethyan Geology,2018,38(1):103-112.
[7] 罗群,庞雄奇.海南福山凹陷顺向和反向断裂控藏机理及油气聚集模式[J].石油学报,2008,29(3):363-367.
LUO Qun,PANG Xiongqi.Reservoir controlling mechanism and petroleum accumulation model for consequent fault and antithetic fault in Fushan depression of Hainan area[J].Acta Petrolei Sinica,2008,29(3):363-367.
[8] 房敬彤.北部湾盆地油气生成的地质环境和油源对比[J].石油勘探与开发,1983(4):21-26.
FANG Jingtong.The geological environment of oil-gas generation and oil-source rock correlation in Beibu Wan Basin[J].Petroleum Exploration and Development,1983(4):21-26.
[9] 戴祉平,包建平,刘玉瑞,等.北部湾盆地迈陈凹陷徐闻1井油源研究[J].石油天然气学报,2009,31(4):9-13.
DAI Zhiping,BAO Jianping,LIU Yurui,et al.Study on the correlation between crude oils and source rocks from Well Xuwen-1 in Maichen sag of Beibuwan Basin[J].Journal of Oil and Gas Technology,2009,31(4):9-13.
[10] 范蕊,李水福,何生,等.涠西南凹陷烃源岩地球化学特征及油源对比[J].石油实验地质,2014,36(2):238-244.
FAN Rui,LI Shuifu,HE Sheng,et al.Geochemical characteristics of source rocks and oil-source correlation in Weixinan sag,Beibuwan Basin[J].Petroleum Geology & Experiment,2014,36(2):238-244.
[11] 杨希冰,金秋月,胡林,等.北部湾盆地涠西南凹陷原油成因类型及分布特征[J].西南石油大学学报:自然科学版,2019,41(3):51-60.
YANG Xibing,JIN Qiuyue,HU Lin,et al.Genetic types and distribution of crude oil in Weixi'nan depression,Beibuwan Basin[J].Journal of Southwest Petroleum University:Science & Technology Edition,2019,41(3):51-60.
[12] 傅宁.论4-甲基C₃₀甾烷丰度与烃源岩质量的关系——基于北部湾盆地勘探实践[J].中国海上油气,2018,30(5):11-20.
FU Ning.On relationship between abundance of 4-methyl-C₃₀-sterane and source rock quality:a case study of exploration practices in Beibuwan Basin[J].China Offshore Oil and Gas,2018,30(5):11-20.
[13] 郝鑫,任拥军,徐新德,等.北部湾盆地乌石凹陷东部原油芳香烃组成特征及地球化学意义[J].新疆石油地质,2016,37(6):674-680.
HAO Xin,REN Yongjun,XU Xinde,et al.Composition characteristics and geochemical significance of aromatic hydrocarbon in crude Otis in eastern Wushi sag,Beibu Gulf Basin[J].Xinjiang Petroleum Geology,2016,37(6):674-680.
[14] 卢政环,甘华军,时阳,等.福山凹陷西部地区原油地化特征与油源对比[J].地球科学,2016,41(11):1909-1920.
LU Zhenghuan,GAN Huajun,SHI Yang,et al.Geochemical characteristics of crude oil and oil-source correlation in the Western Fushan depression[J].Earth Science,2016,41(11):1909-1920.
[15] 包建平,刘玉瑞,朱翠山,等.北部湾盆地原油地球化学特征与成因类型[J].石油与天然气地质,2007,28(2):293-298.
BAO Jianping,LIU Yurui,ZHU Cuishan,et al.Geochemical characteristics and genetic types of crude oils[J].Oil & Gas Geology,2007,28(2):293-298.
[16] 黄保家,黄合庭,吴国瑄,等.北部湾盆地始新统湖相富有机质页岩特征及成因机制[J].石油学报,2012,33(1):25-31.
HUANG Baojia,HUANG Heting,WU Guoxuan,et al.Geochemical characteristics and formation mechanism of Eocene lacustrine organic-rich shales in the Beibuwan Basin[J].Acta Petrolei Sinica,2012,33(1):25-31.
[17] 徐新德,张迎朝,黄义文,等.北部湾盆地乌石凹陷流沙港组油页岩发育的主控因素[J].石油学报,2013,34(S2):66-73.
XU Xinde,ZHANG Yingzhao,HUANG Yiwen,et al.Major controlling factors for development of oil shale in Liushagang Formation of Wushi sag,Beibuwan Basin[J].Acta Petrolei Sinica,2013,34(S2):66-73.
[18] 陈奎,李茂,邹明生,等.涠西南凹陷涠洲组构造圈闭有效性定量评价技术及应用[J].石油学报,2018,39(12):1370-1378.
CHEN Kui,LI Mao,ZOU Mingsheng,et al.The validity quantitative evaluation technology and its application to structural trap in Weizhou Formation,Weixinan sag[J].Acta Petrolei Sinica,2018,39(12):1370-1378.
[19] 胡朝元.我国海上沉积盆地油气田分布区域控制因素的探讨[J].海洋地质与第四纪地质,1986,6(4):23-29.
HU Chaoyuan.An approach on regional controlling factors of oil-gas field distribution in offshore sedimentary basins of China[J].Marine Geology & Quaternary Geology,1986,6(4):23-29.
[20] 杨希冰.南海北部北部湾盆地油气藏形成条件[J].中国石油勘探,2016,21(4):85-92.
YANG Xibing.Hydrocarbon accumulation conditions in Beibu-gulf Basin,northern South China Sea[J].China Petroleum Exploration,2016,21(4):85-92.
[21] 陈善斌,甘华军,夏存银,等.北部湾盆地福山凹陷白莲洼陷烃源岩热史及成烃史模拟[J].新疆石油地质,2014,35(6):672-677.
CHEN Shanbin,GAN Huajun,XIA Cunyin,et al.History simulation of thermal evolution and hydrocarbon generation of source rocks in Bailian sub sag,Fushan sag,Beibuwan Basin[J].Xinjiang Petroleum Geology,2014,35(6):672-677.
[22] 黄第藩,张大江,李晋超.论4-甲基甾烷和孕甾烷的成因[J].石油勘探与开发,1989(3):8-15.
HUANG Difan,ZHANG Dajiang,LI Jinchao.On origin of 4-methyl-steranes and pregnanes[J].Petroleum Exploration and Development,1989(3):8-15.
[23] WOLFF G A,LAMB N A,MAXWELL J R.The origin and fate of 4-methyl steroid hydrocarbons.Ⅰ.Diagenesis of 4-methyl sterenes[J]. Geochimica et Cosmochimica Acta,1986,50(3):335-342.
[24] BRASSELL S C,EGLINTON G,MO F J.Biological marker compounds as indicators of the depositions! History of the Maoming oil shale[J]. Organic Geochemistry,1986,10(4/6):927-941.
[25] 傅家谟,徐芬芳,陈德玉,等.茂名油页岩中生物输入的标志化合物[J].地球化学,1985(2):99-114.
FU Jiamo,XU Fengfang,CHEN Deyu,et al.Biomarker compounds of biological inputs in Maoming oil shale[J].Geochimica,1985(2):99-114.
[26] 李友川,邓运华,张功成.中国近海海域烃源岩和油气的分带性[J].中国海上油气,2012,24(1):6-12.
LI Youchuan,DENG Yunhua,ZHANG Gongcheng.Zoned distribution of source rocks and hydrocarbon offshore China[J].China Offshore Oil and Gas,2012,24(1):6-12.
[27] 兰蕾,李友川,王柯,等.一组有效区分渤中凹陷烃源岩的生物标志化合物参数[J].石油学报,2019,40(1):35-41.
LAN Lei,LI Youchuan,WANG Ke,et al.Biomarker parameters for effectively distinguishing source rocks in Bozhong sag[J].Acta Petrolei Sinica,2019,40(1):35-41.
[28] 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.
[29] 罗威,谢金有,刘新宇,等.北部湾盆地海中凹陷古近纪古气候研究[J].微体古生物学报,2013,30(3):288-296.
LUO Wei,XIE Jinyou,LIU Xinyu,et al.The study of Paleogene climate in the Haizhong depression,Beibuwan Basin,Northern South China Sea[J].Acta Micropalaeontologica Sinica,2013,30(3):288-296.
[30] TYSON R V.Palynofacies analysis[M]//JENKINS D G.Applied micropalaeontology.Dordrecht:Springer,1993:153-191.
[31] 张水昌,龚再升,梁狄刚,等.珠江口盆地东部油气系统地球化学-Ⅰ:油组划分、油源对比及混源油确定[J],沉积学报,2004,22(增刊1):15-26.
ZHANG Shuichang,GONG Zaisheng,LIANG Digang,et al.Geochemistry of petroleum systems in the Eastern Pearl River Mouth Basin-Ⅰ:Oil family classification,oil-source correlation and mixed oil analysis[J].Acta Sedimentologica Sinica,2004,22(S1):15-26.
[32] 付小东,邱楠生,秦建中,等.中上扬子区海相层系烃源岩硫含量分布与硫同位素组成特征[J].石油实验地质,2013,35(5):545-551.
FU Xiaodong,QIU Nansheng,QING Jianzhong,et al.Content distribution and isotopic composition characteristics of sulfur in marine source rocks in Middle-Upper Yangtze region[J].Petroleum Geology & Experiment,2013,35(5):545-551.
[33] PETERS K E,MOLDOWAN J M.The biomarker guide:Interpreting molecular fossils in petroleum and ancient sediments[M].Englewood Cliffs,New Jersey:Prentice Hall,1993.
[34] 梅博文,刘希江.我国原油中异戊间二烯烷烃的分布及其与地质环境的关系[J].石油与天然气地质,1980,1(2):99-115.
MEI Bowen,LIU Xijiang.The distribution of isoprenoid alkanes in China's crude oil and its relation with the geologic environment[J].Oil & Gas Geology,1980,1(2):99-115.
[35] 李友川.中国近海湖相优质烃源岩形成的主要控制因素[J].中国海上油气,2015,27(3):1-9.
LI Youchuan.Main controlling factors for the development of high quality lacustrine hydrocarbon source rocks in offshore China[J].China Offshore Oil and Gas,2015,27(3):1-9.

Differences in lacustrine source rocks of Liushagang Formation in the Beibuwan Basin

北部湾盆地流沙港组湖相烃源岩的差异

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Fan Caiwei, Jia Chengzao, Hu Desheng, Zhao Wen, You Junjun. The Whole Petroleum System of Beibuwan Basin [J]. Acta Petrolei Sinica, 2026, 47(4): 772-790.
[2]	Lei Mingzhu, Jin Qiuyue, Tang Shengming, Wang Ziling, Wang Biwei, Wu Bin. Hydrocarbon sources and accumulation characteristics of the southern fault zone of Wenchang10 subsag and the Shenhu uplift in Zhu Ⅲ depression of Pearl River Mouth Basin [J]. Acta Petrolei Sinica, 2026, 47(2): 422-436.
[3]	Zhi Dongming, He Wenjun, Qin Zhijun, Gan Renzhong, Zheng Menglin, You Xincai, Qian Haitao, Zhao Long. Oil and gas exploration practice in northern Xinjiang area under the guidance of the Whole Petroleum System theory [J]. Acta Petrolei Sinica, 2025, 46(7): 1235-1259.
[4]	Tang Yong, Liu Hailei, Ding Xiujian, Wang Xueyong, Su Jing, Cui Zhenyu, Liu Longsong, Li Zonghao, Chen Shaorong. Whole-process gas generation pattern and gas accumulation characteristics of Fengcheng Formation source rocks in western Junggar Basin [J]. Acta Petrolei Sinica, 2025, 46(7): 1278-1293.
[5]	Guo Xuguang, Wang Guiwen, Gong Deyu, Yang Fan, Yang Wei. Geochemical characteristics and formation environment of Fengcheng Formation source rocks in Mahu sag,Junggar Basin [J]. Acta Petrolei Sinica, 2025, 46(7): 1342-1354.
[6]	Li Jianzhong, Yang Runze, Yang Bin, Kang Jilun, Lin Tong, Gou Hongguang, Ma Qiang, Liu Juntian, Sun Hongliang, Li Pan. Geochemical characteristics and exploration significance of the Upper Carboniferous source rocks in Shiqiantan sag of the eastern Junggar Basin [J]. Acta Petrolei Sinica, 2025, 46(2): 306-319,354.
[7]	Liu Zixuan, Yan Detian, Yu Jianxin, Deng Yong, Ding Yan. Eocene palynoflora and paleoclimate reconstruction in Weixi’nan sag,Beibuwan Basin [J]. Acta Petrolei Sinica, 2025, 46(2): 355-371.
[8]	Fan Caiwei, Zhou Gang, Tang Xu, Chen Kui. Accumulation conditions and key technologies for exploration and development of Wushi oilfield in Beibuwan Basin [J]. Acta Petrolei Sinica, 2025, 46(2): 466-482.
[9]	Li Jianfeng, Li Xiangbo, Ma Bo, Huang Junping, Kong Qingfen, Zhang Yan, Ji Liming. Palynofacies and sedimentary paleoenvironment reconstruction of Triassic Yanchang Formation in southern Ordos Basin [J]. Acta Petrolei Sinica, 2024, 45(7): 1092-1103.
[10]	Wang Qinghua. Breakthrough and significance of oil and gas exploration of Upper Cambrian Xiaqiulitage Formation in Kalayuergun structural belt,western Tabei uplift [J]. Acta Petrolei Sinica, 2024, 45(4): 615-628.
[11]	Zhi Dongming, Li Jianzhong, Yang Fan, Chen Xuan, Xiao Dongsheng, Wang Bo, Wu Chao, Yu Haiyue. Exploration breakthrough and significance of Jurassic tight sandstone gas in Q iudong subsag of Tuha Basin [J]. Acta Petrolei Sinica, 2024, 45(2): 348-357.
[12]	Deng Yong, Hu Desheng, Zhu Jitian, Liu Guochang, Chen Kui, Tong Chuanxin, Zhang Daojun, Xu Xinde, Man Yong, You Junjun, Man Xiao, Wu Yunpeng, Zhou Gang, Zhang Jianxin. Hydrocarbon accumulation regularities, new fields and new types of exploration, and resource potentials in Beibuwan Basin [J]. Acta Petrolei Sinica, 2024, 45(1): 202-225.
[13]	Deng Yunhua, Yang Yongcai, Yang Ting. Three systems of the oil and gas formation in the world [J]. Acta Petrolei Sinica, 2023, 44(6): 873-901.
[14]	Cai Guofu, Peng Guangrong, Wu Jing, Bai Haijun, Li Zhensheng, Wang Xiaomeng, Du Xiaodong, Xiong Wanlin. Paleolacustrine environment and development pattern of high-quality source rock of Eocene in Yangjiang sag, Pearl River Mouth Basin [J]. Acta Petrolei Sinica, 2023, 44(5): 809-825.
[15]	Mi Lijun, Zhang Gongcheng, Liu Zhifeng, Chen Ying, Bai Zhizhao. Discussion on the development mechanism of lacustrine high-quality source rocks in oil-rich sags in offshore China [J]. Acta Petrolei Sinica, 2023, 44(3): 405-419,509.