辽东湾地区锦州25-1大型轻质油气田成藏条件与成藏过程
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
以三维地震资料、钻井资料分析以及流体包裹体资料为基础,分析锦州25-1大型轻质油气田基本成藏条件,并对其生烃史、排烃动力、成藏期次、油气充注过程进行研究。结果表明:锦州25-1油气田是一个优质的大型油气田,其形成的基本条件是该区具有多成因的大型圈闭群、充足的烃源岩条件以及理想的储盖组合;烃原岩排烃的主要动力是干酪根向油转化所产生的孔隙流体压力,孔隙流体压力的周期性累积和释放是油气幕式充注的主要原因;油气大规模充注成藏的时期是东营组末期(21~25 Ma);油气主要来自锦州25-1构造南北两翼的辽西北洼和辽西中洼;双灶供烃、超压-持续强充注、高效输导、理想储盖4因素耦合是研究区形成大型优质油气田的根本原因。
Based on 3D seismic data,drilling and fluid inclusion data,Jinzhou 25-1 large-scale oil-gas field formation conditions were analyzed.The hydrocarbon generation history,hydrocarbon expulsion dynamics,hydrocarbon accumulation period and hydrocarbon charging history of the field were researched.The results show that Jinzhou 25-1 oil-gas field is a perfect large-scale light gas-oil field and its basic formation conditions include multiple genesis large-scale trap group,abundant hydrocarbon source rock and perfect reservoir-cap combination.The hydrocarbon expulsion dynamic in the source kitchen is the pore fluid pressure produced by the transformation from kerogen to hydrocarbon.The episodic accumulation and release of the pore fluid pressure is the main reason of the hydrocarbon episodic charging.The main pool forming period of the field is lateral period(21-25 Ma) of Dongying group deposition.The hydrocarbon source of the oil-gas field is from the north sub-sags and middle sub-sag of Liaoxi sag.The major reason of the large-scale gas-oil field formation in the area is the matching of the hydrocarbon supplying from the double source kitchen,sustained strong charging from overpressure source,high effective transforming and perfect reservoir-cap combination.
引文
[1]龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-10.GONG Zai-sheng,CAI Dong-sheng,ZHANG Gong-cheng.Dominating action of Tanlu fault on hydrocarbonaccumulation in eastern Bohai Sea area[J].Acta PetroleiSinica,2007,28(4):1-10.
    [2]邓运华.郯庐断裂带新构造运动对渤海东部油气聚集的控制作用[J].中国海上油气:地质,2001,15(5):1-5.DENG Yun-hua.A control of the neotectonism alongTancheng Lu-Jiang fracture zone on hydrocarbon accumu-lation in the eastern Bohai Sea[J].China Offshore Oiland Gas(Geology),2001,15(5):1-5.
    [3]邹华耀,周心怀,鲍晓欢,等.渤海海域古近系、新近系原油富集/贫化控制因素与成藏模式[J].石油学报,2010,31(6):885-892.ZOU Hua-yao,ZHOU Xin-huai,BAO Xiao-huan,et al.Controlling factors and models for hydrocarbon enrich-ment/depletion in Paleogene and Neogene,Bohai Sea[J].Acta Petrolei Sinica,2010,31(6):885-892.
    [4]杨永才,张枝焕.高蜡凝析油或轻质油的分布特征与成因机理[J].地质科技情报,2005,24(3):55-59.YANG Yong-cai,ZHANG Zhi-huan.Occurrence and o-riginal mechanisms of high waxy condensates or lightcrude oils[J].Geological Science and Technology Infor-mation,2005,24(3):55-59.
    [5]张枝焕,黄志龙,张振英,等.吐哈盆地西部地区高蜡凝析油和轻质油的地球化学特征及成因分析[J].地质学报,2004,78(4):551-559.ZHANG Zhi-huan,HUANG Zhi-long,ZHANG Zhen-ying,et al.Geochemical characteristics and origin ofhigh-wax condensate and high-gravity oil in the WesternTurpan-Hami Basin[J].Acta Geologica Sinica,2004,78(4):551-559.
    [6]黄汝昌,王铁冠,王廷栋,等.中国低熟油及凝析油形成与分布规律[M].北京:石油工业出版社,1997:165-169.
    [7]陈践发,沈平,文启彬.我国凝析油的成因类型及其地球化学特征和意义[J].沉积学报,1995,13(1):32-39.CHEN Jian-fa,SHENG Ping,WEN Qi-bin.The genetictype and geochemical characters and their sigificance ofthe condensates in China[J].Acta Sedimentologica Sini-ca,1995,13(1):32-39.
    [8]王茹.东营凹陷北带深层Es4下盐下段轻质油地球化学特征及油源探讨[J].天然气地球科学,2009,20(2):278-281.WANG Ru.Geochemical characteristics and source oflight oil in the deep Es4lo werlayers underlying salt in thenorthern Dongying sag[J].Natural Gas Geoscine,2009,20(2):278-281.
    [9]徐长贵,许效松,丘东洲,等.辽东湾地区辽西凹陷中南部古近系构造格架与层序地层格架及古地理分析[J].古地理学报,2005,7(4):449-459.XU Chang-gui,XU Xiao-song,QIU Dong-zhou,et al.Structural and sequence stratigraphic frameworks andpalaeogeography of the Paleogene in central-southern Li-aoxi sag,Liaodongwan Bay area[J].Journal of Palaeog-raphy,2005,7(4):449-459.
    [10]徐长贵.渤海古近系坡折带成因类型及其对沉积体系的控制作用[J].中国海上油气,2006,18(6):365-370.XU Chang-gui.Genetic types of Paleogene slope-breakzones and their controls on depositional system in Bohaioffshore[J].China Offshore Oil and Gas,2006,18(6):365-370.
    [11]罗晓容.油气运聚动力学研究进展及存在问题[J].天然气地球科学,2003,14(5):337-346.LUO Xiao-rong.Review of hydrocarbon migration andaccumulation dynamics[J].Natural Gas Geoscience,2003,14(5):337-346.
    [12]郝芳,邹华耀,方勇,等.断-压双控流体流动与油气幕式快速成藏[J].石油学报,2004,25(6):38-47.HAO Fang,ZOU Hua-yao,FANG Yong,et al.Over-pressure-fault controlled fluid flow and episodic hydro-carbon accumulation[J].Acta Petrolei Sinica,2004,25(6):38-47.
    [13]郝芳.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005:137-180.
    [14]郝芳,蔡东升,邹华耀,等.渤中坳陷超压-构造活动联控型流体流动与油气快速成藏[J].地球科学——中国地质大学学报,2004,29(5):518-524.HAO Fang,CAI Dong-sheng,ZOU Hua-yao,et al.O-verpressure-tectonic activity controlled fluid flow andrapid petroleum accumulation in Bozhong depression Bo-hai Bay Basin[J].Earth Science—Journal of China U-niversity of Geosciences,2004,29(5):518-524.
    [15]郝芳,邹华耀,杨旭升.油气幕式成藏及其驱动机制和识别标志[J].地质科学,2003,38(3):413-424.HAO Fang,ZOU Hua-yao,YANG Xu-sheng.Episodicpetroleum accumulation,its driving mechanisms anddistinguishing markers[J].Chinese Journal of Geology,2003,38(3):413-424.
    [16]BREDEHOEFT J D,WESLEY J B,FOUCH T D.Sim-ulations of the origin of fluid pressure,fracture genera-tion,and the movement of fluids in the Uinta Basin,Utah[J].AAPG Bulletin,1994,78(11):1729-1747.
    [17]李明诚.石油与天然气运移研究综述[J].石油勘探与开发,2000,27(4):3-10.LI Ming-cheng.An overview of hydrocarbon migrationresearch[J].Petroleum Exploration and Development,2000,27(4):3-10.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心