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Volume 47 Issue 6
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2025  >  47(6): 1268-1281
YANG Bo, PEI Jianxiang, JIANG Fujie, DANG Yayun, PENG Rui, WU Hongli, HU Gaowei, LI Zhuo, HE Tao. Accumulation characteristics and differential enrichment modes of natural gas in different regions of Dongfang 1-1 diapir, Yinggehai Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(6): 1268-1281. doi: 10.11781/sysydz2025061268
Citation: YANG Bo, PEI Jianxiang, JIANG Fujie, DANG Yayun, PENG Rui, WU Hongli, HU Gaowei, LI Zhuo, HE Tao. Accumulation characteristics and differential enrichment modes of natural gas in different regions of Dongfang 1-1 diapir, Yinggehai Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(6): 1268-1281. doi: 10.11781/sysydz2025061268
shu

Accumulation characteristics and differential enrichment modes of natural gas in different regions of Dongfang 1-1 diapir, Yinggehai Basin

doi: 10.11781/sysydz2025061268

  • 1. National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China;

  • 2. College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China;

  • 3. Hainan Branch, CNOOC(China)Co., Ltd., Haikou, Hainan 570312, China;

  • 4. College of Carbon Neutral Energy, China University of Petroleum (Beijing), Beijing 102249, China

  • Received Date: 2025-07-17
  • Rev Recd Date: 2025-10-21
    • Available Online: 2025-11-26
    Abstract

  • As one of the most important gas-bearing structures in the central depression of the Yinggehai Basin, the diapir-associated gas field group has proven geological natural gas reserves of about 180 billion m3. However, the natural gas accumulation characteristics differ significantly across different regions of the diapir, which seriously affects natural gas exploration process in the central depression. Therefore, taking gas reservoirs in different regions (core, affected region, and unaffected region) of the Dongfang 1-1 diapir as research objects, the study employed gas component analysis, carbon isotope analysis, sandstone physical property tests, and inclusion tests to investigate the natural gas composition and source, reservoir characteristics, migration systems, charging stages, and caprock sealing capacity. The results indicated that the natural gas in the second member of the Pliocene Yinggehai Formation (Y2) in the diapiric core and the first member of the Miocene Huangliu Formation (H1) in the unaffected zone was mainly CH4, with an average content of 69.98%. In contrast, CO2 content in the H1 reservoirs of the affected zone and diapiric core was higher, reaching up to 65.99%. The diapiric core and unaffected zone used diapiric faults and associated micro-fractures, respectively, as the main migration systems. The H1 and Y2 gas reservoirs corresponded to the second and third stages of natural gas charging, respectively. The physical properties of the H1 reservoirs improved progressively from the diapiric core towards the affected and unaffected zones. Both the H1 and Y2 reservoirs showed strong overpressure and overpressure characteristics, with formation pressure coefficients of approximately 1.8 and 1.5, respectively. The overlying mudstone caprock of the H1 reservoir in the unaffected zone demonstrated strong physical sealing capacity, with a fracture pressure coefficient less than 0.9, followed by the affected zone, and poorest in the diapiric core. Based on these results, three natural gas migration-accumulation modes were established for the different regions of the Dongfang 1-1 diapir: (1) diapiric core: early hydrocarbon gas charging, late non-hydrocarbon gas charging, overpressure sealing in medium-deep low-permeability reservoirs, and conventional physical sealing in shallow layers; (2) diapir-affected zone: early hydrocarbon gas charging accompanied by mudstone-controlled physical sealing and late non-hydrocarbon gas charging accompanied by overpressure sealing in low-permeability reservoirs; (3) diapir-unaffected zone: hydrocarbon gas charging, micro-fracture migration, and mudstone-controlled physical sealing.

     

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    • References(45)
  • [1]
    吴克强,裴健翔,胡林,等.莺歌海—琼东南盆地油气勘探新进展与思考[J].中国海上油气,2024,36(5):1-13.

    WU Keqiang,PEI Jianxiang,HU Lin,et al.New progress and thinking on oil and gas exploration in Yinggehai-Qiongdongnan Basin[J].China Offshore Oil and Gas,2024,36(5):1-13.
    [2]
    陈浩东,蒋东雷,吴艳辉,等.超深水超浅层天然气钻探关键技术进展[J].天然气工业,2025,45(6):161-169.

    CHEN Haodong,JIANG Donglei,WU Yanhui,et al.Progresses in key drilling technologies for ultra-deepwater ultra-shallow gas reservoirs[J].Natural Gas Industry,2025,45(6):161-169.
    [3]
    吴克强,裴健翔,胡林,等.莺歌海盆地大—中型气田成藏模式及勘探方向[J].石油学报,2023,44(12):2200-2216.

    WU Keqiang,PEI Jianxiang,HU Lin,et al.Accumulation model and exploration direction of medium-large gas fields in Yinggehai Basin[J].Acta Petrolei Sinica,2023,44(12):2200-2216.
    [4]
    宁卫科,鞠玮,相如.基于神经网络的莺歌海盆地DF区块黄流组储层压力预测与成因分析[J].石油实验地质,2024,46(5):1088-1097.

    NING Weike,JU Wei,XIANG Ru.Pressure prediction and genesis analysis of Huangliu Formation reservoir in DF block of Yinggehai Basin based on neural networks[J].Petroleum Geology & Experiment,2024,46(5):1088-1097.
    [5]
    何家雄,祝有海,翁荣南,等.南海北部边缘盆地泥底辟及泥火山特征及其与油气运聚关系[J].地球科学,2010,35(1):75-86.

    HE Jiaxiong,ZHU Youhai,WENG Rongnan,et al.Characters of north-west mud diapirs volcanoes in South China Sea and relationship between them and accumulation and migration of oil and gas[J].Earth Science,2010,35(1):75-86.
    [6]
    张迎朝,徐新德,王立锋,等.南海北部超压低渗气藏成藏过程与成藏模式：以莺歌海盆地XF区XF13-1超压气田为例[J].天然气地球科学,2015,26(9):1679-1688.

    ZHANG Yingzhao,XU Xinde,WANG Lifeng,et al.The accumulation process and model of overpressured low permeability gas pool in the north of South China Sea:a case study of XF13-1 overpressured gas field in XF area of the Yinggehai Basin[J].Natural Gas Geoscience,2015,26(9):1679-1688.
    [7]
    吴迅达,廖晋,孙文钊,等.莺歌海盆地天然气运聚成藏条件与分布富集规律[J].地质力学学报,2021,27(6):963-974.

    WU Xunda,LIAO Jin,SUN Wenzhao,et al.Natural gas distribution and reservoir-forming law of the Yinggehai Basin,China[J].Journal of Geomechanics,2021,27(6):963-974.
    [8]
    范彩伟,贾茹,柳波,等.莺歌海盆地中央坳陷带成藏体系的盖层评价及控藏作用[J].岩性油气藏,2023,35(1):36-48.

    FAN Caiwei,JIA Ru,LIU Bo,et al.Caprock evaluation and its reservoir control of different accumulation systems in central depression zone of Yinggehai Basin[J].Lithologic Reservoirs,2023,35(1):36-48.
    [9]
    谢玉洪,张迎朝,徐新德,等.莺歌海盆地高温超压大型优质气田天然气成因与成藏模式：以东方13-2优质整装大气田为例[J].中国海上油气,2014,26(2):1-5.

    XIE Yuhong,ZHANG Yingzhao,XU Xinde,et al.Natural gas origin and accumulation model in major and excellent gas fields with high temperature and overpressure in Yinggehai basin:a case of DF13-2 gasfield[J].China Offshore Oil and Gas,2014,26(2):1-5.
    [10]
    XIE Yuhong,HUANG Baojia.Characteristics and accumulation mechanisms of the Dongfang 13-1 high temperature and overpressured gas field in the Yinggehai Basin,the South China Sea[J].Science China Earth Sciences,2014,57(11):2799-2807.
    [11]
    ZHU Hongtao,LIU Keyu,CHEN Kaiyuan,et al.Differential interformational velocity analysis as an effective direct hydrocarbon indicator under velocity reversal conditions,an example from the anomalously high temperature and over-pressured DF1-1 Gas Field in the Yinggehai Basin,South China Sea[J].Petroleum Science,2009,6(4):339-346.
    [12]
    JIANG Tao,XIE Xinong,CHEN Hui,et al.Geochemistry of pore water and associated diagenetic reactions in the diapiric area of Yinggehai Basin,northwestern South China Sea[J].Journal of Earth Science,2015,26(3):306-316.
    [13]
    徐新德,张迎朝,裴健翔,等.构造演化对莺歌海盆地天然气成藏差异性的控制作用[J].天然气工业,2015,35(2):12-20.

    XU Xinde,ZHANG Yingzhao,PEI Jianxiang,et al.Control effect of tectonic evolution on gas accumulation difference in the Yinggehai Basin[J].Natural Gas Industry,2015,35(2):12-20.
    [14]
    杨计海,黄保家.莺歌海凹陷东斜坡L气田天然气成因及运移模式[J].石油勘探与开发,2019,46(3):450-460.

    YANG Jihai,HUANG Baojia.Origin and migration model of natural gas in L gas field,eastern slope of Yinggehai Sag,China[J].Petroleum Exploration and Development,2019,46(3):450-460.
    [15]
    SUN Ming,WANG Hua,LIAO Jihua,et al.Sedimentary characteristics and model of gravity flow depositional system for the first member of Upper Miocene Huangliu Formation in Dongfang area,Yinggehai Basin,northwestern South China Sea[J].Journal of Earth Science,2014,25(3):506-518.
    [16]
    范彩伟,刘爱群,吴云鹏,等.莺歌海盆地乐东10区新近系黄流组储层天然气充注与超压演化史[J].石油与天然气地质,2022,43(6):1370-1381.

    FAN Caiwei,LIU Aiqun,WU Yunpeng,et al.Gas charging and overpressure evolution history of the Neogene Huangliu Formation reservoir in Ledong 10 area,Yinggehai Basin[J].Oil & Gas Geology,2022,43(6):1370-1381.
    [17]
    王振峰,裴健翔.莺歌海盆地中深层黄流组高压气藏形成新模式：DF14井钻获强超压优质高产天然气层的意义[J].中国海上油气,2011,23(4):213-217.

    WANG Zhenfeng,PEI Jianxiang.A new accumulation model of high pressure gas in Huangliu Formation of the middle-deep interval in Yinggehai Basin:the significance of discovering a good-quality gas pay with overpressure and high production in well DF14[J].China Offshore Oil and Gas,2011,23(4):213-217.
    [18]
    何家雄,关进安,王梦荷,等.南海北部气烟囱成因及其与油气及水合物运聚成藏关系[J].海洋地质前沿,2024,40(4):1-8.

    HE Jiaxiong,GUAN Jin’an,WANG Menghe,et al.Discussion on the origin of gas chimney and its relationship with the migration and accumulation of oil and gas hydrates into reservoirs in the northern South China Sea[J].Marine Geology Frontiers,2024,40(4):1-8.
    [19]
    赵必强,肖贤明,胡忠良,等.莺歌海盆地东方1-1气田天然气来源与运聚模式[J].沉积学报,2005,23(1):156-161.

    ZHAO Biqiang,XIAO Xianming,HU Zhongliang,et al.Origin and accumulation model of natural gases in the Dongfang 1-1 gas field of the Yinggehai Basin[J].Acta Sedimentologica Sinica,2005,23(1):156-161.
    [20]
    戴金星.天然气碳氢同位素特征和各类天然气鉴别[J].天然气地球科学,1993(2/3):1-40.

    DAI Jinxing.Characteristics of carbon and hydrogen isotopes in natural gas and identification of various types of natural gas[J].Natural Gas Geoscience,1993(2/3):1-40.
    [21]
    KOTARBA M J,WICŁAWD D,DZIADZIO P,et al.Organic geochemical study of source rocks and natural gas and their genetic correlation in the eastern part of the Polish Outer Carpathians and Palaeozoic-Mesozoic basement[J].Marine and Petroleum Geology,2014,56:97-122.
    [22]
    WHITICAR M J.Carbon and hydrogen isotope systematics of bacterial formation and oxidation of methane[J].Chemical Geology,1999,161(1/3):291-314.
    [23]
    吴红烛,黄志龙,裴健翔,等.莺歌海盆地底辟带DF区天然气地球化学特征差异及其成因[J].石油实验地质,2015,37(2):211-219.

    WU Hongzhu,HUANG Zhilong,PEI Jianxiang,et al.Causes of natural gas geochemical differences in the high-temperature and overpressure zone of DF1-1 diapir belt,Yinggehai Basin[J].Petroleum Geology & Experiment,2015,37(2):211-219.
    [24]
    沈平,陈践发,陶明信,等.莺歌海盆地天然气气源及运移的地球化学特征[J].天然气地球科学,1996,7(1):9-16.

    SHEN Ping,CHEN Jianfa,TAO Mingxin,et al.The geochemical characteristics of natural gas sources and migration in Yinggehai Basin[J].Natural Gas Geoscience,1996,7(1):9-16.
    [25]
    徐建永,赵牛斌,徐仕琨,等.莺歌海盆地中新统海相烃源岩发育主控因素及模式[J].地质科技通报,2021,40(2):54-63.

    XU Jianyong,ZHAO Niubin,XU Shikun,et al.Main controlling factors and development model of the Miocene marine source rocks in Yinggehai Basin[J].Bulletin of Geological Science and Technology,2021,40(2):54-63.
    [26]
    裴健翔,郭潇潇,薛海涛,等.莺歌海盆地中新统海相烃源岩形成环境及控制因素[J].石油与天然气地质,2023,44(4):937-945.

    PEI Jianxiang,GUO Xiaoxiao,XUE Haitao,et al.Environment and controlling factors of the Miocene marine source rocks in the Yinggehai Basin[J].Oil & Gas Geology,2023,44(4):937-945.
    [27]
    PRINZHOFER A,PERNATON É.Isotopically light methane in natural gas:bacterial imprint or diffusive fractionation?[J].Chemical Geology,1997,142(3/4):193-200
    [28]
    YANG Bo,JIANG Fujie,CHEN Di,et al.Origin,migration and accumulation model of natural gas in the Nanpu Sag,Bohai Bay Basin,China[J/OL].Geological Journal,2025.(2025-03-28).[2025-07-01].https://doi.org/10.1002/gj.5246.
    [29]
    RADWAN A E,TRIPPETTA F,KASSEM A A,et al.Multi-scale characterization of unconventional tight carbonate reservoir:insights from October Oil Filed,Gulf of Suez Rift Basin,Egypt[J].Journal of Petroleum Science and Engineering,2021,197:107968.
    [30]
    YANG Bo,WU Hongli,PENG Mou.Deep sandstone reservoir characteristics and pore structure classification based on fractal theory:a case study of the Bayingobi Formation in Guaizihu Sag,Yin’e Basin[J].ACS Omega,2024,9(15):16976-16991.
    [31]
    黄有为.DF1-1气田莺歌海组储层特征及伤害机理研究[D].成都:西南石油大学,2018. HUANG Youwei.Research on reservoir characteristics and damage mechanism of Yinggehai Formation in DF1-1 Gas Field[D].Chengdu:Southwest Petroleum University,2018.
    [32]
    冯兴强,宋海明.塔河油田碎屑岩油气运聚模拟及潜力区优选[J].地质力学学报,2020,26(6):892-900.

    FENG Xingqiang,SONG Haiming.Simulation of oil-gas accumulation of clastic rocks and potential areas in the Tahe Oilfield[J].Journal of Geomechanics,2020,26(6):892-900.
    [33]
    谢玉洪,李绪深,童传新,等.莺歌海盆地中央底辟带高温高压天然气富集条件、分布规律和成藏模式[J].中国海上油气,2015,27(4):1-12.

    XIE Yuhong,LI Xushen,TONG Chuangxin,et al.High temperature and high pressure gas enrichment condition,distribution law and accumulation model in central diapir zone of Yinggehai Basin[J].China Offshore Oil and Gas,2015,27(4):1-12.
    [34]
    朱建成,吴红烛,马剑,等.莺歌海盆地D1-1底辟区天然气成藏过程与分布差异[J].现代地质,2015,29(1):54-62.

    ZHU Jiancheng,WU Hongzhu,MA Jian,et al.Natural gas accumulation process and distribution differences in D1-1 Diapir district,Yinggehai Basin[J].Geoscience,2015,29(1):54-62.
    [35]
    XIE Xi’nong,LI Sitian,DONG Weiliang,et al.Evidence for episodic expulsion of hot fluids along faults near diapiric structures of the Yinggehai Basin,South China Sea[J].Marine and Petroleum Geology,2001,18(6):715-728.
    [36]
    姜平,何胜林,杨朝强,等.莺歌海盆地LD10区高含CO2天然气充注期次精细厘定与成藏模式[J].地球科学,2022,47(5):1569-1585.

    JIANG Ping,HE Shenglin,YANG Zhaoqiang,et al.High CO2 natural gas charging events,timing and accumulation pattern in LD10 area of Yinggehai Basin[J].Earth Science,2022,47(5):1569-1585.
    [37]
    张洪瑞,刘华,韩载华,等.准噶尔盆地阜康凹陷三工河组流体包裹体特征与成藏期压力恢复[J].地球科学,2024,49(7):2420-2433.

    ZHANG Hongrui,LIU Hua,HAN Zaihua,et al.Characteristics of fluid inclusions and pressure recovery during hydrocarbon accumulation period in Jurassic Sangonghe Formation in Fukang Sag,Junggar Basin[J].Earth Science,2024,49(7):2420-2433.
    [38]
    ROEDDER E,BODNAR R J.Geologic pressure determinations from fluid inclusion studies[J].Annual Review of Earth and Planetary Sciences,1980,8(1):263-301.
    [39]
    刘斌.中高盐度NaCl-H2O包裹体的密度式和等容式及其应用[J].地质论评,2001,47(6):617-622.

    LIU Bin.Density and isochoric formulae for NaCl-H2O inclusions with medium and high salinity and their applications[J].Geological Review,2001,47(6):617-622.
    [40]
    田澜希,张冠杰,雷新.琼东南盆地二号断裂带断层封闭性评价[J].现代地质,2024,38(5):1235-1247.

    TIAN Lanxi,ZHANG Guanjie,LEI Xin.Evaluation of fault sealing in the No.2 fault zone of the Qiongdongnan Basin[J].Geoscience,2024,38(5):1235-1247.
    [41]
    张正涛,林畅松,李慧勇,等.渤海西部海域新生代盖层特征及对油气的控制作用[J].地质力学学报,2019,25(3):357-369.

    ZHANG Zhengtao,LIN Changsong,LI Huiyong,et al.Characteristics of the Cenozoic cap rock and its control on hydrocarbon in the western Bohai Sea area[J].Journal of Geomechanics,2019,25(3):357-369.
    [42]
    丁文龙,刘天顺,曹自成,等.断裂封闭性研究现状及发展趋势[J].石油实验地质,2024,46(4):647-663.

    DING Wenlong,LIU Tianshun,CAO Zicheng,et al.Current research status and development trends of fault sealing[J].Petroleum Geology & Experiment,2024,46(4):647-663.
    [43]
    曹思佳,许凤鸣,孙显义,等.断裂致泥岩盖层封闭形成期滞后程度的预测方法及其应用[J].天然气工业,2021,41(6):37-43.

    CAO Sijia,XU Fengming,SUN Xianyi,et al.A method for predicting the fault induced lag degree of seal formation time of mudstone cap rocks and its application[J].Natural Gas Industry,2021,41(6):37-43.
    [44]
    曹小朋,于春磊,赵文景,等.含部分封闭断层油藏水驱优势渗流通道演化规律[J].油气地质与采收率,2024,31(1):78-86.

    CAO Xiaopeng,YU Chunlei,ZHAO Wenjing,et al.Evolution law of dominant flow channel of water flooding in partially enclosed fault reservoir[J].Petroleum Geology and Recovery Efficiency,2024,31(1):78-86.
    [45]
    谢玉洪.莺歌海盆地高温高压盖层封盖能力定量评价[J].地球科学,2019,44(8):2579-2589.

    XIE Yuhong.Quantitative evaluation of sealing capacity of high temperature and pressure caprocks in Yinggehai Basin[J].Earth Science,2019,44(8):2579-2589.
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