珠江口盆地隆起区残留洼陷地质特征与石油勘探新领域
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摘要
珠江口盆地近年来勘探实践证实,储量增长主要依靠富生烃凹陷的新突破,找到发育文昌组半深湖—深湖相优质烃源岩的潜在富生烃凹陷成为该盆地增储上产的关键,因此中央隆起带残留洼陷作为石油勘探新区逐渐引起广大学者的关注。珠江口盆地中央隆起带存在19个文昌组残留洼陷,并利用"三步定洼法"系统确定残洼文昌组分布规模与结构特征,初步认为残洼具有较好的勘探潜力;通过对已证实富生烃凹陷的类比分析,运用"无井区烃源岩评价法",指出如隆起区残洼控洼断裂活动速率大于100 m/Ma,沉降速率大于200 m/Ma,地震剖面上具有低频连续强反射特征,则残洼文昌组发育半深湖—深湖相优质烃源岩。首次提出珠江口盆地中央隆起区残留洼陷具有较大的勘探前景,对拓展新区勘探具有重要的战略意义。
In recent years,exploration practices in Pearl River Mouth Basin(PRMB)have proven that the growth of petroleum reserves mainly depends on new discoveries of hydrocarbon-rich sags.Thus,finding potential hydrocarbon-rich sags with deep and semi-deep lacustrine source rocks of Wenchang Formation has become a key step for increasing petroleum reserves and production in PRMB.As a new field for petroleum exploration,the central uplift belt of PRMB has attracted increasing attention of relevant researchers.Here we propose the discovery of Wenchang Formation in 19 residual sags in the central uplift belt of PRMB.The distribution and structural characteristics of the Wenchang Formation in these residual sags were determined using a three-step method.A comparative analysis was performed on the proven hydrocarbon-rich sags by source rock evaluation in non-well area.Results show that the residual sags have great potential for petroleum exploration.With boundary fault activity rate greater than 100 m/Ma,the subsiding rate is greater than 200 m/Ma.High amplitude and continuous low-frequency reflection in the seismic profile imply the development of deep/semi-deep lacustrine source rocks in the residual sags of Wenchang Formation.This study presents the first evidence that residual sags in the central uplift belt has great potential for petroleum exploration,which has strategic implications for expanding new fields of petroleum exploration in PRMB.
引文
[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]施和生,朱俊章,姜正龙,等.珠江口盆地珠一坳陷油气资源再评价[J].中国海上油气,2009,21(1):9-14.Shi Hesheng,Zhu Junzhang,Jiang Zhenglong,et al.Hydrocarbon resources reassessment in ZhuⅠdepression,Pearl River Mouth basin[J].China Offshore Oil and Gas,2009,21(1):9-14.
    [3]陈长民.珠江口盆地东部石油地质及油气藏形成条件初探[J].中国海上油气,2000,14(2):73-83.Chen Changmin.Petroleum geology and conditions for hydrocarbon accumulation in the eastern Pearl River Mouth basin[J].China Offshore Oil and Gas,2000,14(2):73-83.
    [4]崔莎莎,何家雄,陈胜红,等.珠江口盆地发育演化特征及其油气成藏地质条件[J].天然气地球科学,2009,20(3):384-391.Cui Shasha,He Jiaxiong,Chen Shenghong,et al.Development characteristics of Pearl River Mouth basin and its geological conditions for oil and gas accumulation[J].Natural Gas Geoscience,2009,20(3):384-391.
    [5]何家雄,吴文海,祝有海,等.南海北部边缘盆地油气成因及运聚规律与勘探方向[J].天然气地球科学,2010,21(1):7-17.He Jiaxiong,Wu Wenhai,Zhu Youhai,et al.Genetic types,migration and accumulation of oil and gas and exploration proposal in north marginal basins,South China Sea[J].Natural Gas Geoscience,2010,21(1):7-17.
    [6]吴培康.南海北部多幕裂陷作用与含油气系统[J].石油学报,1998,19(3):11-15.Wu Peikang.Multistage rifting and petroleum systems in the Northpart of South China sea[J].Acta Petrolei Sinica,1998,19(3):11-15.
    [7]杜家元,施和生,丁琳,等.惠州凹陷油气成藏期次划分及其勘探意义[J].中国海上油气,2009,21(4):221-226.Du Jiayuan,Shi Hesheng,Ding Lin,et al.Division of hydrocarbon accumulation stages in Huizhou depression and their exploration significance[J].China Offshore Oil and Gas,2009,21(4):221-226.
    [8]鲁宝亮,王璞珺,张功成,等.南海北部陆缘盆地基底结构及其油气勘探意义[J].石油学报,2011,32(4):580-587.Lu Baoliang,Wang Pujun,Zhang Gongcheng,et al.Basement structures of an epicontinental basin in the northern South China Sea and their significance in petroleum prospect[J].Acta Petrolei Sinica,2011,32(4):580-587.
    [9]施和生,于水明,梅廉夫,等.珠江口盆地惠州凹陷古近纪幕式裂陷特征[J].天然气工业,2009,29(1):35-40.Shi Hesheng,Yu Shuiming,Mei Lianfu,et al.Features of paleogene episodic rifting in Huizhou fault depression in the Pearl River Mouth basin[J].Natural Gas Industry,2009,29(1):35-40.
    [10]朱俊章,施和生,舒誉,等.珠江口盆地烃源岩有机显微组分特征与生烃潜力分析[J].石油实验地质,2007,29(3):301-306.Zhu Junzhang,Shi Hesheng,Shu Yu,et al.Organic maceral characteristics and hydrocarbon-generating potentials of source rocks in the Pearl River Mouth basin[J].Petroleum Geology&Experiment,2007,29(3):301-306.
    [11]李友川,陶维祥,孙玉梅,等.珠江口盆地惠州凹陷及其邻区原油分类和分布特征[J].石油学报,2009,30(6):830-834.Li Youchuan,Tao Weixiang,Sun Yumei,et al.Classification and distribution of oil in Huizhou depression of Pearl River Mouth basin[J].Acta Petrolei Sinica,2009,30(6):830-834.
    [12]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(S1):15-26.Zhang Shuichang,Gong Zaisheng,Liang Digang,et al.Geochemistry ofpetroleum systems in the eastern Pearl River Mouth basin—Ⅰ:oil family classification,oil-source correlation and mixed oil analysis[J].Acta Petrolei Sinica,2004,22(S1):15-26.
    [13]郭小文,何生,石万忠.珠江口盆地番禺低隆起轻质原油芳烃地球化学特征[J].石油学报,2008,29(1):52-57.Guo Xiaowen,He Sheng,Shi Wanzhong.Aromatic geochemistry characteristics of light oils from Panyu Lower Uplift in Pearl River Mouth Basin[J].Acta Petrolei Sinica,2008,29(1):52-57.
    [14]李丙喜,姜正龙,朱俊章,等.惠州凹陷文昌组—恩平组油气成藏模式[J].油气地质与采收率,2009,16(6):36-38.Li Bingxi,Jiang Zhenglong,Zhu Junzhang,et al.Hydrocarbon accumulation patterns of Wenchang and Enping formation Huizhou depression[J].Petroleum Geology and Recovery Efficiency,2009,16(6):36-38
    [15]吕成福,陈国俊,王天琦,等.恩平凹陷第三系文昌组异常岩性体特征[J].石油学报,2008,29(3):368-371.LüChengfu,Chen Guojun,Wang Tianqi,et al.Characteristics of lithology anomalous body in Tertiary Wenchang Formation of Enping Sag[J].Acta Petrolei Sinica,2008,29(3):368-371.
    [16]史玉玲,侯读杰,马宁.惠州凹陷生烃潜力及油源对比[J].石油天然气学报,2011,33(10):15-19.Shi Yuling,Hou Dujie,Ma Ning.Hydrocarbon-generation potential and correlation of oil sources in Huizhou oil-enriched depression[J].Journal of Oil and Gas Technology,2011,33(10):15-19.
    [17]何家雄,陈胜红,刘海龄,等.珠江口盆地白云凹陷北坡—番禺低隆起天然气成因类型及其烃源探讨[J].石油学报,2009,30(1):16-21.He Jiaxiong,Chen Shenghong,Liu Hailing,et al.Natural gas genetic types and source rocks in the northern slope of Baiyun Sag to Panyu Low Uplift in Pearl River Mouth Basin[J].Acta Petrolei Sinica,2009,30(1):16-21.
    [18]黄正吉.成油期分析方法探讨——以珠江口盆地为例[J].石油学报,1990,11(3):21-26.Huang Zhengji.Methodology for the study of the time of oil generating:with pearl river mouth basin as an example[J].Acta Petrolei Sinica,1990,11(3):21-26.

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