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北部湾涠西南凹陷斜阳斜坡早渐新世低位三角洲沉积及油气地质意义

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彭松, 李珊珊, 胡德胜, 盖永浩, 李磊, 严恒. 北部湾涠西南凹陷斜阳斜坡早渐新世低位三角洲沉积及油气地质意义[J]. 海洋地质前沿, 2017, 33(10): 32-39. doi: 10.16028/j.1009-2722.2017.10004
引用本文: 彭松, 李珊珊, 胡德胜, 盖永浩, 李磊, 严恒. 北部湾涠西南凹陷斜阳斜坡早渐新世低位三角洲沉积及油气地质意义[J]. 海洋地质前沿, 2017, 33(10): 32-39. doi: 10.16028/j.1009-2722.2017.10004
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PENG Song, LI Shanshan, HU Desheng, GAI Yonghao, LI Lei, YAN Heng. DEPOSITIONAL CHARACTERISTICS OF THE EARLY OLIGOCENE LOWSTAND DELTA IN XIEYANG SLOPE ZONE OF WEIXINAN DEPRESSION, BEIBUWAN BASIN AND THEIR PETROLEUM GEOLOGICAL SIGNIFICANCE[J]. Marine Geology Frontiers, 2017, 33(10): 32-39. doi: 10.16028/j.1009-2722.2017.10004
Citation: PENG Song, LI Shanshan, HU Desheng, GAI Yonghao, LI Lei, YAN Heng. DEPOSITIONAL CHARACTERISTICS OF THE EARLY OLIGOCENE LOWSTAND DELTA IN XIEYANG SLOPE ZONE OF WEIXINAN DEPRESSION, BEIBUWAN BASIN AND THEIR PETROLEUM GEOLOGICAL SIGNIFICANCE[J]. Marine Geology Frontiers, 2017, 33(10): 32-39. doi: 10.16028/j.1009-2722.2017.10004
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北部湾涠西南凹陷斜阳斜坡早渐新世低位三角洲沉积及油气地质意义

  • 中海石油(中国)有限公司湛江分公司，广东湛江 524057

  • 基金项目:
    国家重大课题专项(2016ZX05024-006)；国家重大课题专项(2016ZX05024-002-009)
详细信息
    作者简介: 彭松(1983—)，男，硕士，工程师，主要从事石油地质与油气藏开发评价工作. E-mail: pengsong1@cnooc.com.cn

  • 中图分类号: P539.2; P618.18

DEPOSITIONAL CHARACTERISTICS OF THE EARLY OLIGOCENE LOWSTAND DELTA IN XIEYANG SLOPE ZONE OF WEIXINAN DEPRESSION, BEIBUWAN BASIN AND THEIR PETROLEUM GEOLOGICAL SIGNIFICANCE

  • Zhanjiang Branch of CNOOC Ltd., Zhanjiang 524057, Guangdong, China

    摘要

  • 南海北部湾盆地涠西南凹陷下渐新统涠二段油气勘探程度相对较低，作为一套湖平面上升期形成的富泥地层系统，内幕薄砂体成因和展布规律较复杂。笔者从构造沉积充填演化史入手，开展内幕多期次基准面旋回变化的剖析，识别出上、中、下3个四级层序。其中中层序早期为砂岩集中发育层段，进一步分析和追踪落实，该套砂岩呈正韵律牵引流特征，具有多期叠置、水动力较强、自北向南进积的特点，推测为受盆缘一系列断阶强烈活动影响而在洼中—斜坡带稳定分布的大型低位三角洲砂体。由于其沉积背景及储盖组合类型与该区烃源和油气运聚条件配置较好，因此，预测涠二段中层序早期低位—海侵域应是研究区重要的勘探层系，尤其是来自东北方向的长源低位三角洲则更具有广阔的勘探前景。

    The W2 Formation of Lower Oligocene in the Weixinan Depression of the Beibuwan Basin, South China Sea, is dominated by a set of muddy deposits formed during the period of lake level rising, in which the distribution of thin sand bodies is rather complicated. Petroleum exploration has so far remained in a relatively low stage due to lack of understanding of the origin and distribution of these sand bodies. This time, started from the study of tectonics and infilling history, we reconstructed the cyclic changes of base levels. And three 4th-level sequences, including the upper, the middle, and the lower sequences, are established. Sandstones are mainly concentrated in a positive rhythmic manner in the early stage of the middle sequence. They are the superimposed deposits of traction load formed under stronger water dynamic, and prograded from north to south. Based on the analysis of the tectonic and landform framework, we can find out that it was a very stable large-scale lowstand deltaic system no matter in the sag or on the slope. The deltaic bodies were affected severely by faulted terraces along the edge of the basin. It is believed that the specific depositional background and the types and characteristics of the reservoir and cover match well with the formation of source rock and the migration and accumulation of oil and gas in this area. A lowstand and transgressive system tract is then put forward for the first time for the deposits formed in the early period of the middle sequence of the W2 Formation. It should be a very important exploration target in the future.

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  • 图 1  涠西南凹陷构造区划

    Figure 1. 

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    图 2  涠西南凹陷涠二段构造—沉积充填演化剖面

    Figure 2. 

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    图 3  涠二段中下层序地层充填样式与沉积模式

    Figure 3. 

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    图 4  低位三角洲沉积特征识别标志

    Figure 4. 

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    图 5  低位三角洲地震相特征

    Figure 5. 

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    图 6  涠二段中层序低位时期古地貌与沉积体系平面展布

    Figure 6. 

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    图 7  斜阳斜坡带涠二段成藏模式剖面

    Figure 7. 

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    • 参考文献(16)
  • [1]

    龚再升,李思田,谢泰俊,等. 南海北部大陆边缘盆地分析与油气聚集[M]. 北京:科学出版社,1997.

    [2]

    何家雄,夏斌,王志欣,等. 南海北部边缘盆地西区油气运聚成藏规律与勘探领域剖析[J]. 石油学报,2006,27(4):8-14. doi: 10.3321/j.issn:0253-2697.2006.04.002

    [3]

    郑军,陈平,杜学斌,等. 北部湾盆地西部地区涠洲组层序及沉积体系分析[J].海洋石油,2013,33(2):1-7. doi: 10.3969/j.issn.1008-2336.2013.02.001

    [4]

    朱伟林,江文荣. 北部湾盆地涠西南凹陷断裂与油气藏[J]. 石油学报,1998,19(3):6-10. doi: 10.3321/j.issn:0253-2697.1998.03.002

    [5]

    杜振川,魏魁生. 北部湾盆地涠洲组复合扇体特征及油气勘探意义[J]. 石油与天然气地质,2002,23(3):274-278. doi: 10.3321/j.issn:0253-9985.2002.03.016

    [6]

    张志强,詹文欢,汤民强,等. 北部湾盆地晚中新世以来沉降过程[J]. 海洋地质与第四纪地质,2013,33(3):9-13. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hydzydsjdz201303002

    [7]

    李思田,潘元林,陆永潮,等. 断陷盆地隐蔽油藏预测及勘探的关键技术--高精度地震探测基础上的层序地层学研究[J].地球科学:中国地质大学学报,2002,27 (5):592-597.

    [8]

    Nummedal D,Riley G W, Cole R D, et al. The falling sea level systems tract in ramp settings (Abstract). Mesozoic of the Western Interior [C]∥Society of Economic Paleontologists and Mineralogists, Theme Meeting, Fort Collins. 1992:50.

    [9]

    李茂,朱绍鹏,邹明生,等. 涠西南凹陷复杂断块和隐蔽油气藏滚动勘探开发实践[J]. 中国海上油气,2015,27(4):73-79. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zghsyq-gc201504010

    [10]

    赵军,洪庆玉,董伟良. 北部湾涠西南凹陷物源方向及古地理景观分析[J]. 石油勘探与开发,2001,28(5):25-28. doi: 10.3321/j.issn:1000-0747.2001.05.007

    [11]

    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. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=sysydz201402019

    [12]

    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. doi: 10.3969/j.issn.1674-3636.2014.04.670

    [13]

    李绪深,甘军,张迎朝,等. 南海西部海域断陷湖盆油气聚集规律及勘探前景[J]. 中国海上油气,2015,27(4):22-29. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zghsyq-gc201504003

    [14]

    吕宝凤,殷征欣,蔡周荣,等. 南海北部新生代构造演化序列及其油气成藏意义[J]. 地质学报,2012,86(8):1249-1261. doi: 10.3969/j.issn.0001-5717.2012.08.008

    [15]

    何家雄,张伟,颜文,等.中国近海盆地幕式构造演化及成盆类型与油气富集规律[J].海洋地质与第四纪地质,2014:34(2):121-134. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hydzydsjdz201402015

    [16]

    胡望水,吴婵,梁建设,等.北部湾盆地构造迁移特征及对油气成藏的影响[J].石油与天然气地质,2011,32(54):920-927. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syytrqdz201106015

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收稿日期:  2017-05-30
刊出日期:  2017-10-28

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