东营凹陷洼陷带沙三中亚段浊积岩成藏条件分析
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摘要
针对浊积岩油藏成藏规律复杂、含油性差异大的问题,以东营凹陷洼陷带东部沙三中亚段浊积岩为例,在文献调研的基础上,基于地震、测井、钻井、试油等多项资料,采用成藏基本地质要素及油气现今分布规律研究与典型油藏解剖相结合的方法,分析了研究区浊积岩成藏的主控因素。结果表明,研究区沙三中亚段浊积岩的成藏主要受控于以下3个方面:①有效储层的发育基本控制了油层的展布规律,储层的厚度中心往往也是油层的分布区或富集区;②在有效储层的分布约束前提下构造背景及异常高压控制了油气的富集;③有效的断层输导条件是研究区浊积岩能否成藏的关键,与相对独立的透镜状浊积砂体相比,由断裂体系沟通下部烃源岩的浊积岩砂体更容易成藏。在明确研究区成藏主控因素的基础上,总结了针对洼陷带浊积岩油藏的综合评价方法。
Turbidite reservoir is characterized by complex hydrocarbon accumulation rule and diverse oiliness.Based on the data of seismic,well logging,well drilling and well testing.The fundamental geologic features,combined with the hydrocarbon distribution rule and typical reservoir analysis were applied to study the main controlling factors of the accumulation of turbidite.The result shows that the hydrocarbon accumulation of turbidite in the middle sub-member of Es3 is controlled by the following three aspects:①The development of effective reservoir basically controlled the oil layer distribution,and the reservoir with great thickness is the distributed area and enrichment area of oil layer;②Oil and gas enrichment is controlled by structural setting and abnormal high pressure;③Effective transporting condition of faults is the key for hydrocarbon accumulation of turbidite.Compared with separate lenticular turbidite sand body,turbidite sandstone which is communicated with source rock by fault is easily charged by oil.Finally,a comprehensive evaluation method for the turbidite in sub-depression belt is concluded.
Turbidite reservoir is characterized by complex hydrocarbon accumulation rule and diverse oiliness.Based on the data of seismic,well logging,well drilling and well testing.The fundamental geologic features,combined with the hydrocarbon distribution rule and typical reservoir analysis were applied to study the main controlling factors of the accumulation of turbidite.The result shows that the hydrocarbon accumulation of turbidite in the middle sub-member of Es3 is controlled by the following three aspects:①The development of effective reservoir basically controlled the oil layer distribution,and the reservoir with great thickness is the distributed area and enrichment area of oil layer;②Oil and gas enrichment is controlled by structural setting and abnormal high pressure;③Effective transporting condition of faults is the key for hydrocarbon accumulation of turbidite.Compared with separate lenticular turbidite sand body,turbidite sandstone which is communicated with source rock by fault is easily charged by oil.Finally,a comprehensive evaluation method for the turbidite in sub-depression belt is concluded.
引文
[1]李小梅.史138—河152井区新增探明储量报告.中国石化胜利油田分公司,2007.
[1]邱桂强.砂岩岩性圈闭含油性定量评价技术研究.中国石化科研成果报告,2008.
[1]李丕龙,金之钧,张善文,等.济阳坳陷油气勘探现状及主要研究进展[J].石油勘探与开发,2003,30(3):1-4.
[2]李明刚,庞雄奇,漆家福,等.东营凹陷砂岩岩性油气藏分布特征及成藏模式[J].油气地质与采收率,2008,15(2):13-15.
[3]夏景生,王志坤,陈刚,等.东营凹陷东部深层浊积扇油藏成藏条件与模式研究[J].岩性油气藏,2009,21(1):55-60.
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[5]孙海宁,夏景生,钟建华,等.山东东营凹陷东部浊积扇油藏成藏条件与模式[J].地质力学学报,2008,14(3):221-230.
[6]苏永进,唐跃刚,房新娜.济阳坳陷东营凹陷浊积型砂体的成藏特征及其差异性[J].石油天然气学报(江汉石油学院学报),2009,31(4):183-187.
[7]刘震,陈艳鹏,赵阳,等.陆相断陷盆地油气藏形成控制因素及分布规律概述[J].岩性油气藏,2007,19(2):121-127.
[8]张善文.济阳坳陷第三系隐蔽油气藏勘探理论与实践[J].石油与天然气地质,2006,27(6):731-739.
[9]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制——以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
[10]胜利油田石油地质志编写组.中国石油地质志:卷六[M].北京:石油工业出版社,1993:2-84.
[11]Ronehet J.Stress fields-A key to oil migration[J].AAPG Bulletin,1981,65(3):74-85.
[12]金凤鸣,赵贤正,邹伟宏,等.二连盆地地层岩性油藏“多元控砂—四元成藏—主元富集”与勘探实践(Ⅱ)——“四元成藏”机理[J].岩性油气藏,2007,19(3):23-27.
[13]郝芳,邹华耀,倪建华,等.沉积盆地超压系统演化与深层油气成藏条件[J].地球科学——中国地质大学学报,2002,27(5):610-615.
[14]李丕龙.陆相盆地油气地质与勘探:卷三[M].北京:石油工业出版社,2003:14-182.
[15]刘士林,郑和荣,林舸,等.渤海湾盆地东营凹陷异常压力分布和演化特征及与油气成藏关系[J].石油实验地质,2010,32(3):233-237.
[16]李继亭,曾溅辉,吴嘉鹏.利用东营凹陷典型剖面分析地层压力演化与油气成藏关系[J].岩性油气藏,2011,23(4):58-63.
[17]刘华,蒋有录,杨万琴,等.东营凹陷中央隆起带油-源特征分析[J].石油与天然气地质,2004,25(1):39-43.
[1]邱桂强.砂岩岩性圈闭含油性定量评价技术研究.中国石化科研成果报告,2008.
[1]李丕龙,金之钧,张善文,等.济阳坳陷油气勘探现状及主要研究进展[J].石油勘探与开发,2003,30(3):1-4.
[2]李明刚,庞雄奇,漆家福,等.东营凹陷砂岩岩性油气藏分布特征及成藏模式[J].油气地质与采收率,2008,15(2):13-15.
[3]夏景生,王志坤,陈刚,等.东营凹陷东部深层浊积扇油藏成藏条件与模式研究[J].岩性油气藏,2009,21(1):55-60.
[4]朱德燕.东营凹陷古近系岩性圈闭分布及成藏条件[J].油气地质与采收率,2008,15(3):32-35.
[5]孙海宁,夏景生,钟建华,等.山东东营凹陷东部浊积扇油藏成藏条件与模式[J].地质力学学报,2008,14(3):221-230.
[6]苏永进,唐跃刚,房新娜.济阳坳陷东营凹陷浊积型砂体的成藏特征及其差异性[J].石油天然气学报(江汉石油学院学报),2009,31(4):183-187.
[7]刘震,陈艳鹏,赵阳,等.陆相断陷盆地油气藏形成控制因素及分布规律概述[J].岩性油气藏,2007,19(2):121-127.
[8]张善文.济阳坳陷第三系隐蔽油气藏勘探理论与实践[J].石油与天然气地质,2006,27(6):731-739.
[9]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制——以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
[10]胜利油田石油地质志编写组.中国石油地质志:卷六[M].北京:石油工业出版社,1993:2-84.
[11]Ronehet J.Stress fields-A key to oil migration[J].AAPG Bulletin,1981,65(3):74-85.
[12]金凤鸣,赵贤正,邹伟宏,等.二连盆地地层岩性油藏“多元控砂—四元成藏—主元富集”与勘探实践(Ⅱ)——“四元成藏”机理[J].岩性油气藏,2007,19(3):23-27.
[13]郝芳,邹华耀,倪建华,等.沉积盆地超压系统演化与深层油气成藏条件[J].地球科学——中国地质大学学报,2002,27(5):610-615.
[14]李丕龙.陆相盆地油气地质与勘探:卷三[M].北京:石油工业出版社,2003:14-182.
[15]刘士林,郑和荣,林舸,等.渤海湾盆地东营凹陷异常压力分布和演化特征及与油气成藏关系[J].石油实验地质,2010,32(3):233-237.
[16]李继亭,曾溅辉,吴嘉鹏.利用东营凹陷典型剖面分析地层压力演化与油气成藏关系[J].岩性油气藏,2011,23(4):58-63.
[17]刘华,蒋有录,杨万琴,等.东营凹陷中央隆起带油-源特征分析[J].石油与天然气地质,2004,25(1):39-43.
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