渤海海域沙三段烃源岩评价及排烃特征
|
摘要
利用加权平均的方法,对单井烃源岩地化指标进行了计算。在此基础上,采用单井地质地化数据与地震反演、沉积相、构造埋深等资料"点—面"相互结合、验证的方法,对烃源岩厚度、有机质丰度、有机质类型进行了平面预测与评价。根据这些预测结果,应用生烃潜力法建立了3种类型有机质的排烃模式并对烃源岩排烃特征进行了系统评价。结果表明,沙三段烃源岩具有厚度大、有机质丰度高、有机质类型好的特征,但各凹陷差别较大;Ⅰ、Ⅱ、Ⅲ型有机质对应的排烃门限分别为2 740m2、795m和2 850m,总排烃量为174.66×108t,主要分布在渤中、辽中、黄河口、歧口等凹陷,馆陶组和明化镇组沉积期是主要的排烃期。综合而言,沙三段烃源岩排烃量大,且大部分凹陷属于晚期排烃,具有良好的资源前景。
Geochemical indicators of source rocks for a single well were calculated using the weighted average and on this basis the thickness of source rocks,the abundance and the type of organic matter were laterally forecasted and evaluated by means of validating multiple data with each other,for instance,integrating geological and geochemical data for a single well with data of related seismic inversion,sedimentary facies and structurally burial depth,etc.In accordance with this prediction and evaluation,different models of hydrocarbon expulsion for three types of organic matter were established using the hydrocarbon generative potential measurement.The results showed that source rocks in the Es3 member show characters of great thickness,high abundance and good types of organic matter,though they vary considerably in different sags.The threshold of hydrocarbon expulsion corresponding to typeⅠ,Ⅱ and Ⅲ of organic matter is 2740m,2795m and 2850m,respectively,and the total amount of hydrocarbon expulsion is 174.66 × 108t,mainly distributed in the central Bohai sag,the central Liao River sag,the Yellow River estuary sag and the Qikou sag.Depositional stages of the Guantao and Minghuazhen formations are the two major periods of hydrocarbon expulsion.In general,source rocks in the Es3 member have expulsed large amounts of hydrocarbons,and most of the sags are of hydrocarbon expulsion at the late stage,indicating a promising resource prospect.
Geochemical indicators of source rocks for a single well were calculated using the weighted average and on this basis the thickness of source rocks,the abundance and the type of organic matter were laterally forecasted and evaluated by means of validating multiple data with each other,for instance,integrating geological and geochemical data for a single well with data of related seismic inversion,sedimentary facies and structurally burial depth,etc.In accordance with this prediction and evaluation,different models of hydrocarbon expulsion for three types of organic matter were established using the hydrocarbon generative potential measurement.The results showed that source rocks in the Es3 member show characters of great thickness,high abundance and good types of organic matter,though they vary considerably in different sags.The threshold of hydrocarbon expulsion corresponding to typeⅠ,Ⅱ and Ⅲ of organic matter is 2740m,2795m and 2850m,respectively,and the total amount of hydrocarbon expulsion is 174.66 × 108t,mainly distributed in the central Bohai sag,the central Liao River sag,the Yellow River estuary sag and the Qikou sag.Depositional stages of the Guantao and Minghuazhen formations are the two major periods of hydrocarbon expulsion.In general,source rocks in the Es3 member have expulsed large amounts of hydrocarbons,and most of the sags are of hydrocarbon expulsion at the late stage,indicating a promising resource prospect.
引文
[1]张功成.渤海海域构造格局与富生烃凹陷分布[J].中国海上油气(地质),2000,14(2):93-99.Zhang Gongcheng.Tectonic framework and prolific hydrocarbondepressions in Bohai Bay[J].China Offshore Oil and Gas(Geolo-gy),2000,14(2):93-99.
[2]朱伟林,葛建党.渤海海域天然气勘探前景分析[J].石油学报,2001,22(2):8-13.Zhu Weilin,Ge Jiandang.Gas exploration potential in offshoreBohai Bay Basin[J].Acta Petrolei Sinica,2001,22(2):8-13.
[3]朱伟林,王国纯,周毅.渤海油气资源浅析[J].石油学报,2000,21(3):1-7.Zhu Weilin,Wang Guochun,Zhou Yi.Potential of petroleum re-sources in the offshore of Bohai Bay Basin[J].Acta Petrolei Sini-ca,2000,21(3):1-7.
[4]龚再升,王国纯,贺清.上第三系是渤中坳陷及周围油气勘探的主要领域[J].中国海上油气(地质),2000,14(3):145-156.Gong Zaisheng,Wang Guochun,He Qing.The Neogene:A mainrealm of hydrocarbon exploration in Bozhong Sag and its sur-rounding areas[J].China Offshore Oil and Gas(Geology),2000,14(3):145-156.
[5]龚再升,王国纯.中国近海油气资源潜力新认识[J].中国海上油气(地质),1997,11(1):1-12.Gong Zaisheng,Wang Guochun.New thoughts upon petroleumresources potential in offshore China[J].China Offshore Oil andGas(Geology),1997,11(1):1-12.
[6]朱伟林.中国近海找油的勘探战略[J].中国海上油气(地质),1997,11(6):407-415.Zhu Weilin.Oil exploration strategy in offshore China[J].ChinaOffshore Oil and Gas(Geology),1997,11(6):407-415.
[7]侯贵廷,钱祥麟,蔡东升.渤海中、新生代盆地构造活动与沉积作用的时空关系[J].石油与天然气地质,2000,21(3):201-206.Hou Guiting,Qian Xianglin,Cai Dongsheng.Space time relation-ship between tectonics and sedimentation of Meso-Cenozoic Bo-hai Basin[J].Oil&Gas Geology,2000,21(3):201-206.
[8]何仕斌,朱伟林,李丽霞.渤中坳陷沉积演化和上第三系储盖组合分析[J].石油学报,2001,22(2):38-43.He Shibin,Zhu Weilin,Li Lixia.Sedimentary evolution and Neo-gene reservoir-seal assemblage analysis of Bozhong Depression[J].Acta Petrolei Sinica,2001,22(2):38-43.
[9]孙永河,漆家福,吕延防,等.渤中坳陷断裂构造特征及其对油气的控制[J].石油学报,2008,29(5):669-675.Sun Yonghe,Qi Jiafu,LüYanfang,et al.Characteristics of faultstructure and its control to hydrocarbon in Bozhong Depression[J].Acta Petrolei Sinica,2008,29(5):669-675.
[10]胡圣标,张容燕,罗毓晖,等.渤海海域盆地热历史及油气资源潜力[J].中国海上油气(地质),2001,14(5):306-314.Hu Shengbiao,Zhang Rongyan,Luo Yuhui,et al.Basin thermalhistory and petroleum potential in Bohai Sea[J].China OffshoreOil and Gas(Geology),2001,14(5):306-314.
[11]庞雄奇,邱楠生,姜振学.油气成藏定量模拟[M].北京:石油工业出版社,2005:7.Pang Xiongqi,Qiu Nansheng,Jiang Zhenxue.Quantitative simu-lation of hydrocarbon accumulation[M].Beijing:Petroleum In-dustry Press,2005:7.
[12]卢双舫,刘晓艳.干酪根类型数值化的再探讨[J].大庆石油学院学报,1993,17(增刊):29-33.Lu Shuangfang,Liu Xiaoyan.Further probing into digitalizatonof kerogen types[J].Journal of Daqing Petroleum Institute,1993,17(Supplement):29-33.
[13]庞雄奇.排烃门限控油气理论与应用[M].北京:石油工业出版社,1995.Pang Xiongqi.Principle of controlling oil and gas with hydrocar-bon-expulsion threshold and its application[M].Beijing:Petrole-um Industry Press,1995.
[14]周杰,庞雄奇.一种生、排烃量计算方法探讨与应用[J].石油勘探与开发,2002,29(1):24-27.Zhou Jie,Pang Xiongqi.A method for calculating the quantity ofhydrocarbon generation and expulsion[J].Petroleum Explorationand Development,2002,29(1):24-27.
[15]姜福杰,庞雄奇,姜振学,等.东营凹陷沙四上亚段烃源岩排烃特征及潜力评价[J].地质科技情报,2007,26(2):69-74.Jiang Fujie,Pang Xiongqi,Jiang Zhenxue,et al.Hydrocarbon-ex-pulsion characters and the potential resource evaluation of hydro-carbon source rocks from the Upper Section of4th Member ofShahejie Formation in Dongying Depression[J].Geological Sci-ence and Technology Information,2007,26(2):69-74.
[16]庞雄奇,金之钧,姜振学.油气成藏定量模式.油气成藏机理研究系列丛书:卷八[M].北京:石油工业出版社,2003.Pang Xiongqi,Jin Zhijun,Jiang Zhenxue.Quantitative models ofhydrocarbon accumulation[M].Beijing:Petroleum IndustryPress,2003.
[17]龚再升,王国纯.渤海新构造运动控制晚期油气成藏[J].石油学报,2001,22(2):1-7.Gong Zaisheng,Wang Guochun.Neotectonism and late hydrocar-bon accumulation in Bohai Sea[J].Acta Petrolei Sinica,2001,22(2):1-7.
[18]龚再升.中国近海含油气盆地新构造运动与油气成藏[J].地球科学——中国地质大学学报,2004,29(5):513-517.Gong Zaisheng.Neotectonics and petroleum accumulation in Off-shore Chinese Basins[J].Earth Science:Journal of China Univer-sity of Geosciences,2004,29(5):513-517.
[19]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 Dongsheng,Zou Huayao,et al.Overpressure-tec-tonic activity controlled fluid flow and rapid petroleum accumula-tion in Bozhong Depression,Bohai Bay Basin[J].Earth Science:Journal of China University of Geosciences,2004,29(5):518-524.
[20]邓运华.试论中国近海两个坳陷带油气地质差异性[J].石油学报,2009,30(1):1-8.Deng Yunhua.Analysis on differences of petroleum type and geo-logical conditions between two depression belts in China offshore[J].Acta Petrolei Sinica,2009,30(1):1-8.
[21]李丕龙,庞雄奇.陆相断陷盆地隐蔽油气藏形成——以济阳坳陷为例[M].北京:石油工业出版社,2004.Li Pilong,Pang Xiongqi.Formation of subtle trap in continentalfault basins:Taking Jiyang Depression as an example[M].Bei-jing:Petroleum Industry Press,2004.
[2]朱伟林,葛建党.渤海海域天然气勘探前景分析[J].石油学报,2001,22(2):8-13.Zhu Weilin,Ge Jiandang.Gas exploration potential in offshoreBohai Bay Basin[J].Acta Petrolei Sinica,2001,22(2):8-13.
[3]朱伟林,王国纯,周毅.渤海油气资源浅析[J].石油学报,2000,21(3):1-7.Zhu Weilin,Wang Guochun,Zhou Yi.Potential of petroleum re-sources in the offshore of Bohai Bay Basin[J].Acta Petrolei Sini-ca,2000,21(3):1-7.
[4]龚再升,王国纯,贺清.上第三系是渤中坳陷及周围油气勘探的主要领域[J].中国海上油气(地质),2000,14(3):145-156.Gong Zaisheng,Wang Guochun,He Qing.The Neogene:A mainrealm of hydrocarbon exploration in Bozhong Sag and its sur-rounding areas[J].China Offshore Oil and Gas(Geology),2000,14(3):145-156.
[5]龚再升,王国纯.中国近海油气资源潜力新认识[J].中国海上油气(地质),1997,11(1):1-12.Gong Zaisheng,Wang Guochun.New thoughts upon petroleumresources potential in offshore China[J].China Offshore Oil andGas(Geology),1997,11(1):1-12.
[6]朱伟林.中国近海找油的勘探战略[J].中国海上油气(地质),1997,11(6):407-415.Zhu Weilin.Oil exploration strategy in offshore China[J].ChinaOffshore Oil and Gas(Geology),1997,11(6):407-415.
[7]侯贵廷,钱祥麟,蔡东升.渤海中、新生代盆地构造活动与沉积作用的时空关系[J].石油与天然气地质,2000,21(3):201-206.Hou Guiting,Qian Xianglin,Cai Dongsheng.Space time relation-ship between tectonics and sedimentation of Meso-Cenozoic Bo-hai Basin[J].Oil&Gas Geology,2000,21(3):201-206.
[8]何仕斌,朱伟林,李丽霞.渤中坳陷沉积演化和上第三系储盖组合分析[J].石油学报,2001,22(2):38-43.He Shibin,Zhu Weilin,Li Lixia.Sedimentary evolution and Neo-gene reservoir-seal assemblage analysis of Bozhong Depression[J].Acta Petrolei Sinica,2001,22(2):38-43.
[9]孙永河,漆家福,吕延防,等.渤中坳陷断裂构造特征及其对油气的控制[J].石油学报,2008,29(5):669-675.Sun Yonghe,Qi Jiafu,LüYanfang,et al.Characteristics of faultstructure and its control to hydrocarbon in Bozhong Depression[J].Acta Petrolei Sinica,2008,29(5):669-675.
[10]胡圣标,张容燕,罗毓晖,等.渤海海域盆地热历史及油气资源潜力[J].中国海上油气(地质),2001,14(5):306-314.Hu Shengbiao,Zhang Rongyan,Luo Yuhui,et al.Basin thermalhistory and petroleum potential in Bohai Sea[J].China OffshoreOil and Gas(Geology),2001,14(5):306-314.
[11]庞雄奇,邱楠生,姜振学.油气成藏定量模拟[M].北京:石油工业出版社,2005:7.Pang Xiongqi,Qiu Nansheng,Jiang Zhenxue.Quantitative simu-lation of hydrocarbon accumulation[M].Beijing:Petroleum In-dustry Press,2005:7.
[12]卢双舫,刘晓艳.干酪根类型数值化的再探讨[J].大庆石油学院学报,1993,17(增刊):29-33.Lu Shuangfang,Liu Xiaoyan.Further probing into digitalizatonof kerogen types[J].Journal of Daqing Petroleum Institute,1993,17(Supplement):29-33.
[13]庞雄奇.排烃门限控油气理论与应用[M].北京:石油工业出版社,1995.Pang Xiongqi.Principle of controlling oil and gas with hydrocar-bon-expulsion threshold and its application[M].Beijing:Petrole-um Industry Press,1995.
[14]周杰,庞雄奇.一种生、排烃量计算方法探讨与应用[J].石油勘探与开发,2002,29(1):24-27.Zhou Jie,Pang Xiongqi.A method for calculating the quantity ofhydrocarbon generation and expulsion[J].Petroleum Explorationand Development,2002,29(1):24-27.
[15]姜福杰,庞雄奇,姜振学,等.东营凹陷沙四上亚段烃源岩排烃特征及潜力评价[J].地质科技情报,2007,26(2):69-74.Jiang Fujie,Pang Xiongqi,Jiang Zhenxue,et al.Hydrocarbon-ex-pulsion characters and the potential resource evaluation of hydro-carbon source rocks from the Upper Section of4th Member ofShahejie Formation in Dongying Depression[J].Geological Sci-ence and Technology Information,2007,26(2):69-74.
[16]庞雄奇,金之钧,姜振学.油气成藏定量模式.油气成藏机理研究系列丛书:卷八[M].北京:石油工业出版社,2003.Pang Xiongqi,Jin Zhijun,Jiang Zhenxue.Quantitative models ofhydrocarbon accumulation[M].Beijing:Petroleum IndustryPress,2003.
[17]龚再升,王国纯.渤海新构造运动控制晚期油气成藏[J].石油学报,2001,22(2):1-7.Gong Zaisheng,Wang Guochun.Neotectonism and late hydrocar-bon accumulation in Bohai Sea[J].Acta Petrolei Sinica,2001,22(2):1-7.
[18]龚再升.中国近海含油气盆地新构造运动与油气成藏[J].地球科学——中国地质大学学报,2004,29(5):513-517.Gong Zaisheng.Neotectonics and petroleum accumulation in Off-shore Chinese Basins[J].Earth Science:Journal of China Univer-sity of Geosciences,2004,29(5):513-517.
[19]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 Dongsheng,Zou Huayao,et al.Overpressure-tec-tonic activity controlled fluid flow and rapid petroleum accumula-tion in Bozhong Depression,Bohai Bay Basin[J].Earth Science:Journal of China University of Geosciences,2004,29(5):518-524.
[20]邓运华.试论中国近海两个坳陷带油气地质差异性[J].石油学报,2009,30(1):1-8.Deng Yunhua.Analysis on differences of petroleum type and geo-logical conditions between two depression belts in China offshore[J].Acta Petrolei Sinica,2009,30(1):1-8.
[21]李丕龙,庞雄奇.陆相断陷盆地隐蔽油气藏形成——以济阳坳陷为例[M].北京:石油工业出版社,2004.Li Pilong,Pang Xiongqi.Formation of subtle trap in continentalfault basins:Taking Jiyang Depression as an example[M].Bei-jing:Petroleum Industry Press,2004.
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