Basinal Texture Structure of Qikou Sag in Bohai Bay Basin and Its Evolution

ZHOU  Li-Hong, LU  Yi, XIAO  Dui-Qing, ZHANG  Zhi-Pan, CHEN  Xian-Bao, WANG  Hui, HU  Shi-Ying

doi:10.11764/j.issn.1672-1926.2011.03.373

Natural Gas Geoscience >

2011 , Vol. 22 >Issue 3: 373 - 382

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.03.373

Basinal Texture Structure of Qikou Sag in Bohai Bay Basin and Its Evolution

Expand

Dagang Oilfield Company,PetroChina,Tianjin 300280,China

Received date: 2011-02-09

Revised date: 2011-05-17

Online published: 2011-06-10

Fold

Abstract

We use the new obtained super-large area 3D seismic data to deduce the structure feature,fault activities & tectonic evolution in the Qikou sag.The results show that a good connection between sub-sags would occur at early Paleogene Period (Es₃).The separation between water and deposits was happened by the gradually uplift of the buried hill at the end of Es₁-Ed tectonics.The superimposition of different phase tectonics was observed in the Qikou sag.With exception of boundary faults,the main faults in the Qikou sag were not active or moved weakly at the Es₃Period.We divide the tectonic activities into 4 epoches in the Qikou sag,including mid-Es₃ Epoch,mid-Es₁ Epoch,Ed Epoch end and Nm Epoch end.The unconformities exist between Es¹₃,Ed and Ng,respectively.Two typical episodic stages in the Qikou sag could be divided,such as chasmic stage and thermal-depress stage.The two typical stages subdivide into four sub\|epoches like as chasmic Ⅰ（Es₃-Es_2）chasmic Ⅱ（Es₁-Ed），stable thermal depress epoch (Ng-Nmx) and accelerrate thermal depress epoch(after Nmx).

Key words： Qikou sag; Basin structure; Fault activity; Basin evolution; Rifting; Thermal subsidence; Extension; Strike-slip.

Cite this article

ZHOU Li-Hong, LU Yi, XIAO Dui-Qing, ZHANG Zhi-Pan, CHEN Xian-Bao, WANG Hui, HU Shi-Ying . Basinal Texture Structure of Qikou Sag in Bohai Bay Basin and Its Evolution[J]. Natural Gas Geoscience, 2011 , 22(3) : 373 -382 . DOI: 10.11764/j.issn.1672-1926.2011.03.373

References

［1］Shi Shuangshuang.Formation and Evolution for the Main Fault [JP]Systems and Their Implication to Petroleum Geology in Qikou Depression［D］.Beijing:China University of Geosciences,2009.［史双双.歧口凹陷主断裂系统形成演化及油气地质意义［D］.北京：中国地质大学，2009.］
［2］Qu Fang,Chen Qinghua,Lian Chengbo,et al.Faulted structure systems of Huanghua depression in Cenozoic Era［J］.Petroleum Geology and Recovery Efficiency,2006,13(5):7-10.［渠芳,陈清华,连承波,等.黄骅坳陷新生代断裂构造系统研究［J].油气地质与采收率，2006，13(5):7-10.］
［3］Wu Xingning,Zhou Jianxun.The anatomy about the tectonic cause of formation of Bohaiwan basin［J］.Progress in Geophysics,2003，15(1)：98-107.［吴兴宁,周建勋.渤海湾盆地构造成因观点剖析［J］.地球物理学进展，2003，15(1)：98-107.］
［4］Li Pengju,Lu Huafu,Shi Yangshen.Study on the formation and fault structures of the Dongpu depression of Bohai Gulf,east China［J］.Journal of Nanjing University:Natural Sciences,1995，31(1):128-139.［李鹏举,卢华复,施央申.渤海湾盆地东濮凹陷的形成及断裂构造研究［J］.南京大学学报:自然科学，1995，31(1):128-139.］［5］Su Junqing,Zhao Houxiang,Qian Maolu,et al.The hydrocarbon formation and accumulation control factors research of Qikou depression［J］.Xinjiang Geology,2009,27(4):383-386.［苏俊青,赵厚祥,钱茂路,等.歧口凹陷湖盆特征及对油气成藏控制作用研究［J］.新疆地质，2009,27(4):383-386.］
［6］Qi Jiafu,Xia Yiping,Yang Qiao.Tectonic Structure Analysis in Oil Zone［M］.Beijing:Petroleum Industry Press,2006:25-29.［漆家福,夏义平,杨桥.油区构造解析［M］.北京：石油工业出版社，2006:25-29.］
［7］Zou Dongbo,Wu Shiguo,Liu Gang,et al.The features of the NNE trending faults and its implication for hydrocarbon in the Zhuanghai area,Bohaiwan basin[J].Natural Gas Geoscience,2004,15(5):503-507.[邹东波,吴时国,刘刚,等.渤海湾盆地桩海地区NNE向断层性质及其对油气的影响[J].天然气地球科学,2004,15(5):503-507.]
［8］Dai Junsheng,Lu Kezheng,Qi Jiafu,et al.Structure style evolution in paleogene Bohai Bay basin［J］.Acta Petrolei Sinica，1998,19(4):16-20.［戴俊生,陆克政,漆家福,等.渤海湾盆地早第三纪构造样式的演化［J］.石油学报，1998,19(4):16-20.］
［9］Fan Jingliang,Huang Zhiquan,Fan Weihua.Cenozoic tectonic evolution of Qikou sag and its relations to hydrocarbon traps in Bohai Bay basin of east China［J］.Journal of Jiling University:Earth Science Edition,2004,34(4):536-541.［樊敬亮,黄志全,樊卫花.歧口凹陷新生代构造演化与油气［J］.吉林大学学报:地球科学版，2004,34(4):536-541.］
［10］Zhang Yanzhang,Li Shuen,Luo Shuiyu,et al.Recent evidence of the Tangdong tectonic zone trike-slip fault in Qikou depressed basin and it′s significance in exploration［J］.Xinjiang Geology,2005,23（4）：410-412.［张延章,李淑恩,罗水余,等.歧口凹陷唐东走滑断裂存在的证据及勘探意义［J］.新疆地质，2005,23（4）：410-412.］
［11］Xiao Shangbin,Gao Xilong,Jiang Zaixing,et al.Cenozoic dextral strike-slip motion in Bohai Bay basin and its meaning to petroleum geology［J］.Geotectonic et Metalogenia,2000,24(4):321-328.［肖尚斌,高喜龙,姜在兴,等.渤海湾盆地新生代的走滑活动及其石油地质意义［J］.大地构造与成矿学，2000,24(4):321-328.］
［12］Qi Peng,Ren Jianye,Shi Shuangshuang,et al.Features of the Cenozoic structure of the coastal zone in Qikou sag and its formation mechanism［J］.Acta Petrolei Sinica,2010,31（6）：900-905.［祁鹏，任建业，史双双，等.歧口凹陷沿岸带新生代构造特征及其形成机制［J］.石油学报，2010,31（6）：900-905.］
［13］Zhou Lihong,Wu Yongping,Xiao Dunqing,et al.Characteristics of the Tertiary igneous rock and investigation of their relationships with hydrocarbon in Huanghua depression［J］.Acta Petrolei Sinica,2000,21（6）：29-34.［周立宏，吴永平，肖敦清，等.黄骅坳陷第三系火成岩与油气关系探讨［J］.石油学报，2000,21（6）：29-34.］
［14］Cheng Yongsheng,Chen Songling,Wang Hai,et al.Lower Tertiary petroleum system in Leting sag,Bohai Bay basin[J].Natural Gas Geoscience,2007,18(6):854-858,863.[成永生,陈松岭,王海,等.渤海湾盆地乐亭凹陷下第三系含油气系统[J].天然气地球科学,2007,18(6):854-858,863.]

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References