东营凹陷胜坨地区沙二上亚段古物源输送路径研究
|
摘要
应用330余口井的钻、测井资料,绘制地层对比图与地层厚度图,建立了地层格架,揭示了地层发育情况,并通过砂岩厚度图与百分含量图,描绘了砂体沉积的分布范围.分析结果表明:胜坨油田沙二上亚段沉积时期存在3个主要物源和1个次要物源,3个主要物源分别是来自陈家庄凸起的西北部物源与东北部物源,以及来自青坨子凸起的东部物源;1个次要物源是来自陈家庄凸起的北部物源,在个别小层沉积时发育.各小层砂岩厚度分布情况揭示出研究区内部物源分配过程,即西北部物源区的碎屑物质向东南方向搬运并控制一区的沉积物质展布;东北部物源区的碎屑向西南方向搬运;东部物源区的碎屑向西搬运,来自东北部与东部的物源两者交汇并控制二、三区的沉积物质展布.物源在不同砂组或小层中其位置在一定区域内不断迁移,碎屑物质在盆地内搬运方向也随之发生变化,造成不同时期(小层)来自物源区的沉积物相互叠置.物源也同时受同沉积断层的影响,同沉积断层的走向控制了地层展布与碎屑物质在研究区内的搬运方向.
According to the stratigraphic correlation and thickness maps by drilling and logging data from over 330 wells,the paper establishes stratigraphic framework to reveal its development,and shows the distribution of sandbody deposits with sandstone thickness and percentage content. The results show that during the sedimentary period of Upper Es2 in Shengtuo Oilfield,there are three major provenances and one secondary provenance. The distribution of sandstone thickness in each sublayer reveals the distribution of internal provenances. The provenance in different sand formations or sublayers constantly migrate within a certain area,and the transportation directions of detrital materials in the basin also change correspondingly,which leads to the superimposition of sediments from provenances of different periods and sublayers. The synsedimentary faults also affect the provenance,and the strike controls the stratigraphic distribution and transport direction of detrital materials in the study area.
According to the stratigraphic correlation and thickness maps by drilling and logging data from over 330 wells,the paper establishes stratigraphic framework to reveal its development,and shows the distribution of sandbody deposits with sandstone thickness and percentage content. The results show that during the sedimentary period of Upper Es2 in Shengtuo Oilfield,there are three major provenances and one secondary provenance. The distribution of sandstone thickness in each sublayer reveals the distribution of internal provenances. The provenance in different sand formations or sublayers constantly migrate within a certain area,and the transportation directions of detrital materials in the basin also change correspondingly,which leads to the superimposition of sediments from provenances of different periods and sublayers. The synsedimentary faults also affect the provenance,and the strike controls the stratigraphic distribution and transport direction of detrital materials in the study area.
引文
[1]吴伟,杨圣贤,刘文业,等.胜坨油田勘探开发50年实践与认识———油藏地质篇[M].北京:石油工业出版社,2013:173-175.
[2]杨仁超,李进步,樊爱萍,等.陆源沉积岩物源分析研究进展与发展趋势[J].沉积学报,2013,31(1):99-107.
[3]胜利油田有限公司胜利采油厂编写.胜坨地区沙二段三角洲前缘砂体分布及含油气规律研究[M].北京:石油工业出版社,2003:17-20.
[4]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑(地球科学),2003,33(11):1025-1036.
[5]孙永壮.东营凹陷胜坨地区沙河街组沉积体系及其油气源特征[J].中国石油大学学报:自然科学版,2006,30(06):24-30.
[6]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,1993:20-25.
[7]柯光明,郑荣才,高红灿,等.胜坨油田一区沙河街组二段1—3砂组测井-沉积相分析[J].沉积与特提斯地质,2006,26(1):81-87.
[8]王风华.东营凹陷东北斜坡带沉积特征及成藏规律研究[J].断块油气田,2004,11(2):8-9.
[9]彭治超,付星辉,刘俊超,等.沉积物源分析方法及研究进展[J].西安文理学院学报:自然科学版,2017,20(1):116-121.
[10]仲虹.地球化学在物源及沉积背景分析中的应用[J].智能城市,2017,3(12):183.
[11]魏然,李红阳,于斌,等.沉积盆地物源体系分析方法及研究进展[J].岩性油藏,2013,25(3):53-57.
[12]张立强,杨晚.东营凹陷北带古冲沟古近系多物源沉积模式[J].中南大学学报:自然科学版,2012,43(8):3159-3165.
[13]赖维成,宋章强,周心怀,等.“动态物源”控砂模式[J].石油勘探与开发,2010,37(6):763-768.
[14]王秀红.渤海湾盆地沾化凹陷富林洼陷油气来源及分布规律研究[J].石油实验地质,2013,35(2):151-156.
[15]曹翠.胜坨油田一区沙河街组二段1~3砂组构造精细研究[J].西部探矿工程,2010,22(12):25-28.
[2]杨仁超,李进步,樊爱萍,等.陆源沉积岩物源分析研究进展与发展趋势[J].沉积学报,2013,31(1):99-107.
[3]胜利油田有限公司胜利采油厂编写.胜坨地区沙二段三角洲前缘砂体分布及含油气规律研究[M].北京:石油工业出版社,2003:17-20.
[4]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑(地球科学),2003,33(11):1025-1036.
[5]孙永壮.东营凹陷胜坨地区沙河街组沉积体系及其油气源特征[J].中国石油大学学报:自然科学版,2006,30(06):24-30.
[6]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,1993:20-25.
[7]柯光明,郑荣才,高红灿,等.胜坨油田一区沙河街组二段1—3砂组测井-沉积相分析[J].沉积与特提斯地质,2006,26(1):81-87.
[8]王风华.东营凹陷东北斜坡带沉积特征及成藏规律研究[J].断块油气田,2004,11(2):8-9.
[9]彭治超,付星辉,刘俊超,等.沉积物源分析方法及研究进展[J].西安文理学院学报:自然科学版,2017,20(1):116-121.
[10]仲虹.地球化学在物源及沉积背景分析中的应用[J].智能城市,2017,3(12):183.
[11]魏然,李红阳,于斌,等.沉积盆地物源体系分析方法及研究进展[J].岩性油藏,2013,25(3):53-57.
[12]张立强,杨晚.东营凹陷北带古冲沟古近系多物源沉积模式[J].中南大学学报:自然科学版,2012,43(8):3159-3165.
[13]赖维成,宋章强,周心怀,等.“动态物源”控砂模式[J].石油勘探与开发,2010,37(6):763-768.
[14]王秀红.渤海湾盆地沾化凹陷富林洼陷油气来源及分布规律研究[J].石油实验地质,2013,35(2):151-156.
[15]曹翠.胜坨油田一区沙河街组二段1~3砂组构造精细研究[J].西部探矿工程,2010,22(12):25-28.