渤海湾盆地东营凹陷扭张断裂成因模式及控藏作用
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摘要
扭张断裂构造特征的精细刻画及控藏作用的分析是我国东部高成熟油田精细化油藏评价的重要方向。基于扭张断裂几何学特征及构造演化特征的分析,开展了渤海湾盆地东营凹陷扭张断裂成因模式的研究,建立了东营凹陷扭张断裂控藏模式。研究表明,东营凹陷扭张断裂可划分为帚状、侧接及雁列3种类型。帚状扭张断裂表现为先张后扭的特征,由单条断裂逐渐向帚状演化;侧接扭张断裂表现为先扭后张的特征,由雁列式向侧接演化;雁列扭张断裂表现为边扭边张的特征,由早期单条断裂向雁列式扭张断裂演化。扭张断裂的差异演化形成了启闭耦合的控藏模式,为扭张型盆地内的精细油藏勘探开发提供了有利的指导。
Study on the structural characteristics of transtensional faults and their controls on hydrocarbon accumulation is of great significance to the fine reservoir evaluation in the highly-explored areas of eastern China. The genetic model of transtensional faults in the Dongying Depression,Bohai Bay Basin,was studied,and the accumulation model controlled by transtensional faults in this area was established,on the basis of the geometrical and evolutionary characteristics of the transtensional faults. Research shows that,the transtensional faults in the Dongying Depression can be divided into three types,the broom-shaped,en echelon and juxtaposition faults. The broom-shaped transtensional faults are characterized by early extension and later transformation,with the structural style evolving from a single fault to a broom-shaped fault zone. While the juxtaposition transtensional faults feature early transformation and later extension,with its structural style evolving from the en echelon to the juxtaposition type. The en echelon transtensional faults are characterized by simultaneous transformation and extension,with its structural style evolving from a single fault at early stages to the en echelon fault zone. The differential evolution of transtensional faults leads to the model of controls over hydrocarbon accumulation with open-close coupling,providing a guidance for the fine exploration and development of reservoirs in transtensional basins.
Study on the structural characteristics of transtensional faults and their controls on hydrocarbon accumulation is of great significance to the fine reservoir evaluation in the highly-explored areas of eastern China. The genetic model of transtensional faults in the Dongying Depression,Bohai Bay Basin,was studied,and the accumulation model controlled by transtensional faults in this area was established,on the basis of the geometrical and evolutionary characteristics of the transtensional faults. Research shows that,the transtensional faults in the Dongying Depression can be divided into three types,the broom-shaped,en echelon and juxtaposition faults. The broom-shaped transtensional faults are characterized by early extension and later transformation,with the structural style evolving from a single fault to a broom-shaped fault zone. While the juxtaposition transtensional faults feature early transformation and later extension,with its structural style evolving from the en echelon to the juxtaposition type. The en echelon transtensional faults are characterized by simultaneous transformation and extension,with its structural style evolving from a single fault at early stages to the en echelon fault zone. The differential evolution of transtensional faults leads to the model of controls over hydrocarbon accumulation with open-close coupling,providing a guidance for the fine exploration and development of reservoirs in transtensional basins.
引文
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[13]魏国齐,贾承造,施央申,等.塔北隆起北部中新生界张扭性断裂系统特征[J].石油学报,2001,22(1):19-24.Wei Guoqi,Jia Chengzao,Shi Yangshen,et al. Tectonic characteristic and petroleum accumulation in extensional-shear fault system in Mesozoic-cenozoic formations in the northern area of Tabei uplift,Tarim[J]. Acta Petrolei Sinica,2001,22(1):19-24.
[14]李红南,刘伟,蔡传强,等.豫冀鲁不同级序旋扭构造体系和油气富集规律[J].地质力学学报,2009,15(4):386-392.Li Hongnan,Liu Wei,Cai Chuanqiang,et al. Rotational shear tectonic systems in different levels and their relation to hydrocarbon enrichment rules[J]. Journal of Geomechanics,2009,15(4):386-392.
[15]王光付,王端平,单家增.东营凹陷辛镇构造复杂低级序断裂体系形成的构造物理模拟实验[J].石油勘探与开发,2004,31(2):18-20.Wang Guangfu,Wang Duanping,Shan Jiazeng. Structural modeling experiments of complex low grade fracture system in the Xinzhen structure,Dongying Sag[J]. Petroleum Exploration and Development,2004,31(2):18-20.
[16]许淑梅,马云,王金铎,等.东营凹陷中央隆起带西段“帚状生长断层系”发育特征及成因机制[J].海洋地质与第四纪地质,2011,31(6):75-81.Xu Shumei,Ma Yu,Wang Jinduo,et al. Characteristics and genetic mechanism of“Broom-like syn-depositional faults”in west segment of central uplift belt in Dongying Depression[J]. Marine Geology and Quaternary Geology,2011,31(6):75-81.
[17]李雪,吕宝凤,夏斌.八面河地区新生代构造变形与孔店组油气成藏[J].天然气工业,2005,26(2):29-31.Li Xue,Lv Baofeng,Xia Bin. Cenozonictectonization and hydrocarbon reservoiring of kongdian formation in bamianheregion[J]. Natural Gas Industry,2005,26(2):29-31.
[18]胡明,姜宏军,付广,等.似花状断裂密集带富油差异性—以渤海湾盆地南堡凹陷中浅层为例[J].石油与天然气地质,2016,37(4):528-537.Hu Ming,Jiang Hongjun,Fu Guang,et al. Characterization of petroleum pooling patterns in dense flower-like fault belts:Taking the middle and shallow layers in Nanpu Sag of Bohai Bay Basin as an example[J]. Oil&Gas Geology,2016,37(4):528-537.
[19]柳屿博,黄晓波,徐长贵,等.渤海海域辽西构造带S型走滑转换带特征及控藏作用定量表征[J].石油与天然气地质,2018,39(1):20-29.Liu Yubo,Huang Xiaobo,Xu Changgui,et al. Characteristics of Sshaped strike-slip transfer zones and quantitative analysis of their influence on hydrocarbon accumulation in Liaoxi structural belt,Bohai Sea[J]. Oil&Gas Geology,2018,39(1):20-29.
[20]邓尚,李慧莉,张仲培,等.塔里木盆地顺北及邻区主干走滑断裂带差异活动特征及其与油气富集的关系[J].石油与天然气地质,2018,39(5):878-888.Deng Shang,Li Huili,Zhang Zhongpei,et al. Characteristics of differential activities in major strike-slip fault zones and their control on hydrocarbon enrichment in Shunbei area and its surroundings,Tarim Basin[J]. Oil&Gas Geology,2018,39(5):878-888.
[2]杨明慧.渤海湾盆地变换构造特征及其成藏意义[J].石油学报,2009,30(6):816-823.Yang Minghui. Transfer structure and its relation to hydrocarbon exploration in Bohai Bay Basin[J]. Acta Petrolei Sinica,2009,30(6):816-823.
[3]于俊峰,夏斌,许静.对渤海湾盆地张扭、压扭性构造的一点认识[J].天然气地球科学,2006,17(4):473-476.Yu Junfeng,Xia Bin,Xu Jing. An understanding of tense-shearing and compresso-shearing structures in Bohai Bay Basion[J]. Natural gas geoscience,2006,17(4):473-476.
[4]陈海云,于建国,舒良树,等.济阳坳陷构造样式及其与油气关系[J].高校地质学报,2005,11(4):622-632.Chen Haiyun,Yu Jianguo,Shu Liangshu,et al. The structural styles and their relation with petroleum-gas resources of the jiyang depression,[J]. Geological Journal of China Universities,2005,11(4):622-632.
[5]严俊君,王燮培.关于扭动构造的鉴别问题[J].石油与天然气地质,1996,17(1):9-14.Yan Junjun,Wang Xiepei. On identification of wrench structure[J].Oil&Gas Geology,1996,17(1):9-14.
[6]杨明慧,刘池阳,魏永佩.扭张盆地的特征研究[J].断块油气田,1999,6(4):1-4.Yang Minghui,Liu Chiyang,Wei Yongpei. The characteristics of transtensional basin[J]. Fault-Block Oil and Gas Field,1999,6(4):1-4.
[7]吴智平,张婧,任健,等.辽东湾坳陷东部地区走滑双重构造的发育特征及其石油地质意义[J].地质学报,2016(5):849-856.Wu Zhiping,Zhang Qian,Ren Jian,et al. Development characteristics of ctrike-clip duplex in the eastern part of Liaodong Bay depression and its petroleum geological significance[J]. Acta Geologica Sinica,2016(5):849-856.
[8]蒋子文,王嗣敏,徐长贵,等.渤海海域辽东带中南部郯庐断裂走滑活动的沉积响应[J].现代地质,2013,27(5):1006-1012.Jiang Ziwen,Wang Simin,Xu Changgui,et al. Sedimentary response to the strike-slip activities of Tan-lufault in central and southern parts of east Liaodong Bay area in BohaiSea[J]. Geoscience,2013,27(5):1006-1012.
[9]王冠民,熊周海,张健,等.渤海湾盆地渤中凹陷油藏断裂特征及对成藏的控制作用[J].石油与天然气地质,2017,38(1):62-69.Wang Guanmin,Xiong Zhouhai,Zhang Jian,et al. Characterization of fault system and its control on reservoirs in theBozhong Sag,Bohai Bay Basin[J]. Oil&Gas Geology,2017,38(1):62-69.
[10]唐其生.东营凹陷断裂系统与中央构造带形成机制[D].浙江杭州:浙江大学,2008:1-41.Tang Qisheng. The fault system and formation mechanism of central structural zone in Dongyingsag[D]. Hangzhou:Zhejiang,Zhejiang University,2008:1-41.
[11]任建业,张青林.东营凹陷中央背斜隆起带形成机制分析[J].大地构造与成矿学,2004,28(3):254-262.Ren Jianye,Zhang Qinglin. Analysis of development mechanism for center anticline high indongyingdepression[J]. Geotectonica et Metallogenia,2004,28(3):254-262.
[12]魏洪涛,李伟,杨智峰,等.青东凹陷新生代构造应力场特征及其与油气运聚的关系[J].新疆石油地质,2014,35(3):273-277.Wei Hongtao,Li Wei,Yang Zhifeng,et al. The Cenozoic tectonic stress field characteristics and relationship of fydrocarbonmigration and accumulation in Qingdongsag in southeastern Bohaibay basin[J]. Xinjiang Petroleum Geology,2014,35(3):273-277.
[13]魏国齐,贾承造,施央申,等.塔北隆起北部中新生界张扭性断裂系统特征[J].石油学报,2001,22(1):19-24.Wei Guoqi,Jia Chengzao,Shi Yangshen,et al. Tectonic characteristic and petroleum accumulation in extensional-shear fault system in Mesozoic-cenozoic formations in the northern area of Tabei uplift,Tarim[J]. Acta Petrolei Sinica,2001,22(1):19-24.
[14]李红南,刘伟,蔡传强,等.豫冀鲁不同级序旋扭构造体系和油气富集规律[J].地质力学学报,2009,15(4):386-392.Li Hongnan,Liu Wei,Cai Chuanqiang,et al. Rotational shear tectonic systems in different levels and their relation to hydrocarbon enrichment rules[J]. Journal of Geomechanics,2009,15(4):386-392.
[15]王光付,王端平,单家增.东营凹陷辛镇构造复杂低级序断裂体系形成的构造物理模拟实验[J].石油勘探与开发,2004,31(2):18-20.Wang Guangfu,Wang Duanping,Shan Jiazeng. Structural modeling experiments of complex low grade fracture system in the Xinzhen structure,Dongying Sag[J]. Petroleum Exploration and Development,2004,31(2):18-20.
[16]许淑梅,马云,王金铎,等.东营凹陷中央隆起带西段“帚状生长断层系”发育特征及成因机制[J].海洋地质与第四纪地质,2011,31(6):75-81.Xu Shumei,Ma Yu,Wang Jinduo,et al. Characteristics and genetic mechanism of“Broom-like syn-depositional faults”in west segment of central uplift belt in Dongying Depression[J]. Marine Geology and Quaternary Geology,2011,31(6):75-81.
[17]李雪,吕宝凤,夏斌.八面河地区新生代构造变形与孔店组油气成藏[J].天然气工业,2005,26(2):29-31.Li Xue,Lv Baofeng,Xia Bin. Cenozonictectonization and hydrocarbon reservoiring of kongdian formation in bamianheregion[J]. Natural Gas Industry,2005,26(2):29-31.
[18]胡明,姜宏军,付广,等.似花状断裂密集带富油差异性—以渤海湾盆地南堡凹陷中浅层为例[J].石油与天然气地质,2016,37(4):528-537.Hu Ming,Jiang Hongjun,Fu Guang,et al. Characterization of petroleum pooling patterns in dense flower-like fault belts:Taking the middle and shallow layers in Nanpu Sag of Bohai Bay Basin as an example[J]. Oil&Gas Geology,2016,37(4):528-537.
[19]柳屿博,黄晓波,徐长贵,等.渤海海域辽西构造带S型走滑转换带特征及控藏作用定量表征[J].石油与天然气地质,2018,39(1):20-29.Liu Yubo,Huang Xiaobo,Xu Changgui,et al. Characteristics of Sshaped strike-slip transfer zones and quantitative analysis of their influence on hydrocarbon accumulation in Liaoxi structural belt,Bohai Sea[J]. Oil&Gas Geology,2018,39(1):20-29.
[20]邓尚,李慧莉,张仲培,等.塔里木盆地顺北及邻区主干走滑断裂带差异活动特征及其与油气富集的关系[J].石油与天然气地质,2018,39(5):878-888.Deng Shang,Li Huili,Zhang Zhongpei,et al. Characteristics of differential activities in major strike-slip fault zones and their control on hydrocarbon enrichment in Shunbei area and its surroundings,Tarim Basin[J]. Oil&Gas Geology,2018,39(5):878-888.