走滑断层作用对南堡凹陷油气成藏的控制
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摘要
综合利用地震、重力、钻井等资料,对南堡凹陷柏各庄断裂和西南庄断裂进行重新认识,分析构造变形对南堡凹陷油气成藏的控制作用。柏各庄断裂和西南庄断裂在深部合并成一条基底断裂(柏各庄—西南庄断裂),具走滑断裂性质,该基底断裂在燕山期发生明显的左行走滑并持续到古近纪沙河街组沉积期,对沙河街组沉积有明显的控制作用。南堡凹陷古近纪成盆演化主要受柏各庄—西南庄基底断裂左行走滑活动控制,属于走滑-伸展凹陷。新近纪以来的断层走滑活动,形成了北东向和北西向两组共轭剪切走滑断层带,控制了二级构造带的展布。南堡凹陷油气大量成藏期与新近纪以来的断层活动期相吻合,利于油气运移及圈闭的形成,油气沿断裂带纵向多层系分布。图9参23
According to the data of seism,gravity,drilling,etc,this paper reexamines the Baigezhuang fracture and the Xi'nanzhuang fracture and analyzes the control of structural deformation on the hydrocarbon accumulation in the Nanpu sag.The Baigezhuang and Xi'nanzhuang fractures merged into a base strike-slip fracture which had distinct left strike-slip at the Yanshan stage lasting until the Es stage and controlled on the Es deposition.The Paleogene basin-forming in the Nanpu sag was controlled by the left strike-slip Baigezhuang-Xi'nanzhuang base fracture and the Nanpu sag was a strike-slip stretching sag.The NE and NW strike-slip fault belts with conjugate shearing were formed by the Neogene fault strike slipping and controlled the distribution of secondary structural belts.The substantial hydrocarbon accumulation in the Nanpu sag has matched in time with the Neogene fault movement,which is favorable to oil and gas migration and trap formation,so the oil and gas are distributed vertically along fault belts as multiple layers.
According to the data of seism,gravity,drilling,etc,this paper reexamines the Baigezhuang fracture and the Xi'nanzhuang fracture and analyzes the control of structural deformation on the hydrocarbon accumulation in the Nanpu sag.The Baigezhuang and Xi'nanzhuang fractures merged into a base strike-slip fracture which had distinct left strike-slip at the Yanshan stage lasting until the Es stage and controlled on the Es deposition.The Paleogene basin-forming in the Nanpu sag was controlled by the left strike-slip Baigezhuang-Xi'nanzhuang base fracture and the Nanpu sag was a strike-slip stretching sag.The NE and NW strike-slip fault belts with conjugate shearing were formed by the Neogene fault strike slipping and controlled the distribution of secondary structural belts.The substantial hydrocarbon accumulation in the Nanpu sag has matched in time with the Neogene fault movement,which is favorable to oil and gas migration and trap formation,so the oil and gas are distributed vertically along fault belts as multiple layers.
引文
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[2]陈国达.中国东部后地台造山带新生代盆地成因一解[J].大地构造与成矿学,1988,12(1):1-4.
[3]李德生.渤海湾含油气盆地的地质构造特征与油气分布[A].李德生石油地质论文集[C].北京:石油工业出版社,1992.
[4]胡见义,童晓光,徐树宝,等.渤海湾及临区中生界地质结构和含油气性[J].石油学报,1982,3(2):1-8.
[5]田在艺.渤海断陷盆地拉张量分析与油气潜力[J].石油学报,1990,11(2):1-12.
[6]漆家福.渤海湾新生代裂陷盆地的伸展模式及其动力学过程[J].石油实验地质,1995,17(4):316-323.
[7]吴振明.中国东部中、新生代主要裂谷盆地的演化及评议[J].石油实验地质,1985,7(1):60-69.
[8]胡朝元.渤海湾盆地的形成机理与分布特点新议[J].石油实验地质,1982,4(3):12-20.
[9]赵重远.渤海湾盆地的构造格局及其演化[J].石油学报,1984,5(1):1-18.
[10]陈发景.中国东部中新生代伸展构造特征及地球动力学背景[J].地球科学(中国地质大学学报),1996,21(4):357-365.
[11]池英柳,赵文智.渤海湾盆地新生代走滑构造与油气聚集[J].石油学报,2000,21(2):14-20.
[12]吴兴宁,周建勋.渤海湾盆地构造成因观点剖析[J].地球物理学进展,2000,15(1):98-107.
[13]高战武,徐杰,宋长青,等.张家口—蓬莱断裂带的分段特征[J].华北地震科学,2001,19(1):35-42.
[14]丁国瑜.中国内陆活动断裂基本特征的探讨[C].北京:地震出版社,1982.1-9.
[15]徐杰,宋长青,楚全芝.张家口—蓬莱断裂带地震构造特征的初步探讨[J].地震地质,1998,20(2):146-154.
[16]徐杰,剂国栋,韩竹君,等.关于我国东部大陆北西向华北-东海新生代裂陷盆地系的雏议[A].现代地球动力学研究及其应用[C].北京:地震出版社,1994.
[17]周海民,魏忠文,曹中宏,等.南堡凹陷的形成演化与油气的关系[J].石油与天然气地质,2000,21(4):345-349.
[18]周海民,汪泽成,郭英海.南堡凹陷第三纪构造作用对层序地层的控制[J].中国矿业大学学报,2000,29(3):326-330.
[19]汪泽成,刘和甫,段周芳.黄骅坳陷中新生代构造负反转分析[J].地球科学,1998,23(3):289-293.
[20]刘和甫,李晓清,刘立群,等.走滑构造体系盆山耦合与区带分析[J].现代地质,2004,18(2):139-150.
[21]王小凤,李中坚,陈柏林,等.郯庐断裂带[M].北京:地质出版社,2000.
[22]李晓清,汪泽成,程有义,等.拉分盆地分析与含油气性——以潍北盆地为例[M].东营:石油大学出版社,2003.35-78.
[23]焦养泉,周海民,刘少峰,等.断陷盆地多层次幕式裂陷作用与沉积充填响应[J].地球科学,1996,21(6):633-636.
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