渤海海域庙西北洼烃源岩特征与勘探潜力
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摘要
利用最新的三维地震、钻井、测井、烃源岩和原油分析化验等资料,对庙西北洼烃源岩地球化学指标、分布特征及成因环境进行了分析,借助盆地模拟和油源对比结果,明确了庙西北洼的主力烃源岩层系和勘探潜力。研究认为:庙西北洼发育东营组和沙一二段2套烃源岩,其中沙一二段烃源岩有机质类型好、丰度高、有机质成熟度高,为好—很好烃源岩,其排烃量占洼陷总排烃量的56%,是庙西北洼的主力烃源岩。油源对比结果表明,PL15-2亿吨级大油田的原油来自沙一二段烃源岩,进一步佐证了沙一二段为主力烃源岩,也预示了庙西北洼具有良好的勘探潜力。
Hydrocarbon source rocks in the Northern Sag of Miaoxi of the Bohai Sea are studied based on the latest 3D seismic,drilling,logging,hydrocarbon source rocks and oil testing data for revealing their geochemical parameters,distribution patterns and forming environment.Basin simulation and mixed oil contribution analysis technique have been adopted for evaluation of main hydrocarbon source rocks and their exploration potentials.Results show that there are two sets of source rocks in the Northern Sag of Miaoxi,called Ed and Es12 respectively.The source rock Es12,which contains high abundance of matured organic matter of good type,is the major source rock in the Sag,of which the amount of hydrocarbon expulsion accounts for 56% of the total.Oil-source correlation further suggests that the crude oil of PL15-2 oilfield is mainly derived from the source rocks Es12.More data indicate that the Northern Sag of Miaoxi has a great exploration potential of hydrocarbons.
Hydrocarbon source rocks in the Northern Sag of Miaoxi of the Bohai Sea are studied based on the latest 3D seismic,drilling,logging,hydrocarbon source rocks and oil testing data for revealing their geochemical parameters,distribution patterns and forming environment.Basin simulation and mixed oil contribution analysis technique have been adopted for evaluation of main hydrocarbon source rocks and their exploration potentials.Results show that there are two sets of source rocks in the Northern Sag of Miaoxi,called Ed and Es12 respectively.The source rock Es12,which contains high abundance of matured organic matter of good type,is the major source rock in the Sag,of which the amount of hydrocarbon expulsion accounts for 56% of the total.Oil-source correlation further suggests that the crude oil of PL15-2 oilfield is mainly derived from the source rocks Es12.More data indicate that the Northern Sag of Miaoxi has a great exploration potential of hydrocarbons.
引文
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[19]顾礼敬,徐守余,苏劲,等.利用地震资料预测和评价烃源岩[J].天然气地球科学.2007,14(4):159-167.
[20]Isaksen G H.Central North Sea hydrocarbon system:Generation,migration,entrapment,and thermal degradation of oil and gas[J].AAPG,2004,88(11):1545-1572.
[21]金强.有效烃源岩的重要性及其研究[J].油气地质与采收率,2001,8(1):1-4.
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[23]姜福杰,庞雄奇,姜振学,等.东营凹陷沙三段源岩排烃特征及潜力评价[J].西安石油大学学报:自然科学版,2007,29(4):7-11.
[24]王飞龙.徐长贵,张敏,等.生物标志物定量叠加参数恢复法在渤海油田稠油油源对比中的应用[J].中国海上油气,2016,28(3):70-77.
[2]田立新,吴国强,张金辉.渤海东部庙西地区隆凹结构的形成及与油气聚集的关系[J].石油实验地质,2014,36(1):56-63.
[3]姚佳,陈保柱,张敏,等.庙西北洼东营组烃源岩地球化学特征及意义[J].长江大学学报:自然科学版,2016,13(17):8-12.
[4]贾楠,刘池洋,张东东.渤海湾盆地庙西凹陷烃源岩评价及油源分析[J].西北大学学报:自然科学版,2013,43(3):461-465.
[5]宗奕,梁建设,刘丽芳.庙西凹陷构造特征[J].岩性油气藏,2012,43(3):461-465.
[6]李才,王昕,张海义,等.渤海海域庙西北洼陷新生代断裂特征及对油气成藏的控制作用[J].石油地质与工程,2012,26(1):10-12.
[7]王玉秀,王昕,李才,等.庙西北洼西部陡坡带断裂特征与油气成藏[J].石油地质与工程,2014,28(4):15-17.
[8]刘朋波,王昕,官大勇,等.渤海东部庙北地区古近系层序与沉积特征[J]地质科技情报,2012,31(3):1-7.
[9]夏庆龙,周心怀,薛永安,等.渤海海域油气藏形成分布与资源潜力[M].北京:石油工业出版社,2012.
[10]秦建中.中国烃源岩[M].北京:科学出版社,2005.
[11]Tissot B P,Welte D H.Petroleum Formation And Occurrence[M].2nd Edition.New York:Springer Verlag,Tokyo,Heidelberg,1984.
[12]Hao Fang,Zhou Xinhuai,Zhu Yang ming,et al.Charging of the Neogene Penglai 19-3field,Bohai Bay Basin,China:Oil accumulation in a young trap in an Active fault zone[J].AAPG Bulletin,2009,93(2):155-179.
[13]张寒,朱光有.利用地震和测井信息预测和评价烃源岩——以渤海湾盆地富油凹陷为例[J].石油勘探与开发.2007,34(1):55-59.
[14]McTavish R A,Jersey S H.Applying wireline logs to estimate source rock maturity[J].Oil&Journal,1998,96(7):76-79.
[15]Passey Q R,Creaney S.A practical model for organic richness from porosity and resist ivity logs[J].AAPG Bulletin,1990,74(12):1777-1794.
[16]Mann U P,Muller J.Source rock evaluation by well log analysis(lower Toarcian,Hils Synline):Advances in organic geochemistry,1987[J].Organic Geochemistry,1988,13(1-3):109-129.
[17]Fertl W H,Chillnger G V.Total organic carbon content determined from well logs[J].SPE Formation Evaluation,1988,3(2):407-419.
[18]刘震,常迈,赵阳,等.低勘探程度盆地烃源岩早期预测方法研究[J].地学前缘,2007,14(4):159-167.
[19]顾礼敬,徐守余,苏劲,等.利用地震资料预测和评价烃源岩[J].天然气地球科学.2007,14(4):159-167.
[20]Isaksen G H.Central North Sea hydrocarbon system:Generation,migration,entrapment,and thermal degradation of oil and gas[J].AAPG,2004,88(11):1545-1572.
[21]金强.有效烃源岩的重要性及其研究[J].油气地质与采收率,2001,8(1):1-4.
[22]陈中红,刘伟.控制东营凹陷烃源岩排烃的几个关键因素[J].西安石油大学学报:自然科学版,2007,22(6):40-43.
[23]姜福杰,庞雄奇,姜振学,等.东营凹陷沙三段源岩排烃特征及潜力评价[J].西安石油大学学报:自然科学版,2007,29(4):7-11.
[24]王飞龙.徐长贵,张敏,等.生物标志物定量叠加参数恢复法在渤海油田稠油油源对比中的应用[J].中国海上油气,2016,28(3):70-77.