辽河西部凹陷古近系层序地层格架
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摘要
随着油气勘探向纵深发展,辽河西部凹陷油气勘探的难度越来越大,现今的勘探面临着复杂的石油地质难题。为了加强西部凹陷的油气精细、立体勘探,提高油气资源的探明率,并借鉴冀东油田、吉林油田和胜利油田油气精细勘探的成果实例,开展西部凹陷的油气精细勘探十分必要,而层序地层格架的建立是油气精细勘探的基础,因而具有十分重要的理论和实践意义。收集了辽河西部凹陷丰富的钻测井资料、地震资料及古生物资料,通过对本区地震剖面上不整合面的识别、古生物化石的等时地层对比、测井曲线组合的突变面识别等,进行层序边界的识别,并运用层序地层学原理,在本区古近系识别出4个二级层序和11个三级层序。在层序界面识别和层序单元划分基础上,通过制作合成记录,建立井震层序地层格架。层序格架内沉积层序整体分布规律为:沉积中心向南迁移,斜坡沉积厚度薄;南厚北薄,洼陷地层齐全;凸起部位地层发育不全。
With the development in depth of the oil and gas exploration, the exploration of the Liaohe western depression becomes more and more difficult, and serves as a complex challenge in view of petroleum geology.In order to undertake the fine and three-dimensional exploration of the oil and gas in the western depression and to increase the success rate of exploration, it is necessary to learn the successful exploration experience from Jidong oilfield, Jilin oilfield and Shengli oilfield, and to carry out detailed exploration of oil and gas in the western depression.The establishment of a sequence-stratigraphic framework is essential for the fine exploration of the oil, and of great theoretical and practical significance.Guided with the theory of sequence stratigraphy and based on well drilling, well logging, seismic and palaeophyte data in the interested districts, the paleogene can be divided into 4 second-order sequences and 11 third-order sequences on the basis of the identification of the sequence boundary which is made through unconformity surface recognition in the seismic section, isochronal formation comparison of the palaeontology fossil and mutation surface recognition of the well logging curves.According to the sequence boundary and the division of layer cells, and by using the synthetic seismogram, the sequence-stratigraphic framework of the west depression is established.Sedimentary sequence distribution law in the sequence-stratigraphic framework includes 5 aspects:migrated southward depocenter;thin slope sedimentary;large sedimentary thickness in the south and small sedimentary thickness in the north, a complete formation in the low-lying;and a not completed formation in the heave part.
With the development in depth of the oil and gas exploration, the exploration of the Liaohe western depression becomes more and more difficult, and serves as a complex challenge in view of petroleum geology.In order to undertake the fine and three-dimensional exploration of the oil and gas in the western depression and to increase the success rate of exploration, it is necessary to learn the successful exploration experience from Jidong oilfield, Jilin oilfield and Shengli oilfield, and to carry out detailed exploration of oil and gas in the western depression.The establishment of a sequence-stratigraphic framework is essential for the fine exploration of the oil, and of great theoretical and practical significance.Guided with the theory of sequence stratigraphy and based on well drilling, well logging, seismic and palaeophyte data in the interested districts, the paleogene can be divided into 4 second-order sequences and 11 third-order sequences on the basis of the identification of the sequence boundary which is made through unconformity surface recognition in the seismic section, isochronal formation comparison of the palaeontology fossil and mutation surface recognition of the well logging curves.According to the sequence boundary and the division of layer cells, and by using the synthetic seismogram, the sequence-stratigraphic framework of the west depression is established.Sedimentary sequence distribution law in the sequence-stratigraphic framework includes 5 aspects:migrated southward depocenter;thin slope sedimentary;large sedimentary thickness in the south and small sedimentary thickness in the north, a complete formation in the low-lying;and a not completed formation in the heave part.
引文
[1]任德生,刘立,陈江,等.辽河坳陷西部凹陷曙北地区古近系层序地层格架[J].石油勘探与开发,2004,31(1):48-50.Ren Desheng,Liu Li,Chen Jiang,et al.Petroleum Exploration and Development,2004,31(1):48-50.
[2]冯有良,鲁卫华,门相勇.辽河西部凹陷古近系层序地层与地层岩性油气藏预测[J].沉积学报,2009,27(1):57-63.Feng Youliang,Lu Weihua,Men Xiangyong.Acta Sedimentologica Sinica,2009,27(1):57-63.
[3]王凯.辽河西部凹陷西南部沙一、二段沉积体系与层序地层特征[J].特种油气藏,2002,9(5):22-26.Wang Kai.Special Oil&Gas Reservoirs,2002,9(5):22-26.
[4]鲁卫华,冯有良,谢亚明,等.辽河坳陷西部凹陷鸳鸯沟地区层序地层划分与岩性圈闭预测[J].油气地质与采收率,2008,15(2):49-53.Lu Weihua,Feng Youliang,Xie Yaming,et al.Petroleum Geology and Recovery Efficiency,2008,15(2):49-53.
[5]黄耀华,许小勇.辽河油田西部凹陷油气藏分布规律及控制因素[J].资源与产业,2007,9(6):56-59.Huang Yaohua,Xu Xiaoyong.Resources&Industries,2007,9(6):56-59.
[6]吴振林.略论辽河西部凹陷油气藏类型及其分布规律[J].石油与天然气地质,1982,3(2):149-156.Wu Zhenlin.Oil&Gas Geology,1982,3(2):149-156.
[7]吴朝容,杜春彦.辽河油田西部凹陷沙河街组远岸浊积扇[J].成都理工学院学报,2001,28(3):267-272.Wu Chaorong,Du Chunyan.Journal of Chengdu University of Technology,2001,28(3):267-272.
[8]郑荣才,吴朝容.西部凹陷深层沙河街组生储盖组合的层序分析[J].成都理工学院学报,1999,26(4):349-356.Zheng Rongcai,Wu Chaorong.Journal of Chendu University of Technology,1999,26(4):349-356.
[9]于兴河,张道建,郜建军,等.辽河油田东、西部凹陷深层沙河街组沉积相模式[J].古地理学报,1999,1(3):40-49.Yu Xinghe,Zhang Daojian,Gao Jianjun,et al.Journal of Palaeogeogaphy,1999,1(3):40-49.
[10]胡受权,郭文平,刘树根,等.断陷湖盆陡坡带陆相层序地层学模式研究——以泌阳断陷双河─赵凹地区下第三系核三上段为例[J].长春科技大学学报,1999,29(2):151-156.Hu Shouquan,Guo Wenping,Liu Shugen,et al.Journal of Changchun University of Science and Technology,1999,29(2):151-156.
[11]朱建伟,刘招君,董清水,等.松辽盆地层序地层格架及油气聚集规律[J].石油地球物理勘探,2001,36(3):339-344.Zhu Jianwei,Liu Zhaojun,Dong Qingshui,et al.Oil Geophysical Prospecting,2001,36(3):339-344.
[12]Andrew D.Miall:Architecture and sequence stratigraphy of Pleist-ocenefluvial systems in the Malay Basin,based on seismic time-slice analysis[J].AAPG Bulletin,2002,86(7):1201-1216.
[13]Shanmugam G,Bloch R B,Mitchell S M,et al.Basin-floor fans ithe North Sea:Sequence stratigraphic models vs.sedimentary facies[J].AAPG Bulletin,1995,79(4):477-512.
[14]Galloway W E.Genetic stratigraphic sequences in basin analysis II:Application to northwest Gulf of Mexico Cenozoic basin[J].AAPG Bulletin,1989,73(2):143-154.
[15]Xue L,Galloway W E.High-resolution depositional framework of the Paleocene middle Wilcox strata,Texas coastal plain[J].AAPG Bulletin,1995,79(2):205-230.
[16]Xue L,Galloway W E.Genetic sequence stratigraphic framework,depositional style,and hydrocarbon occurrence of the upper cretaceous QYN formations in the Songliao lacustrine basin,northeastern China[J].AAPG Bulletin,1993,77(10):1792-1808.
[2]冯有良,鲁卫华,门相勇.辽河西部凹陷古近系层序地层与地层岩性油气藏预测[J].沉积学报,2009,27(1):57-63.Feng Youliang,Lu Weihua,Men Xiangyong.Acta Sedimentologica Sinica,2009,27(1):57-63.
[3]王凯.辽河西部凹陷西南部沙一、二段沉积体系与层序地层特征[J].特种油气藏,2002,9(5):22-26.Wang Kai.Special Oil&Gas Reservoirs,2002,9(5):22-26.
[4]鲁卫华,冯有良,谢亚明,等.辽河坳陷西部凹陷鸳鸯沟地区层序地层划分与岩性圈闭预测[J].油气地质与采收率,2008,15(2):49-53.Lu Weihua,Feng Youliang,Xie Yaming,et al.Petroleum Geology and Recovery Efficiency,2008,15(2):49-53.
[5]黄耀华,许小勇.辽河油田西部凹陷油气藏分布规律及控制因素[J].资源与产业,2007,9(6):56-59.Huang Yaohua,Xu Xiaoyong.Resources&Industries,2007,9(6):56-59.
[6]吴振林.略论辽河西部凹陷油气藏类型及其分布规律[J].石油与天然气地质,1982,3(2):149-156.Wu Zhenlin.Oil&Gas Geology,1982,3(2):149-156.
[7]吴朝容,杜春彦.辽河油田西部凹陷沙河街组远岸浊积扇[J].成都理工学院学报,2001,28(3):267-272.Wu Chaorong,Du Chunyan.Journal of Chengdu University of Technology,2001,28(3):267-272.
[8]郑荣才,吴朝容.西部凹陷深层沙河街组生储盖组合的层序分析[J].成都理工学院学报,1999,26(4):349-356.Zheng Rongcai,Wu Chaorong.Journal of Chendu University of Technology,1999,26(4):349-356.
[9]于兴河,张道建,郜建军,等.辽河油田东、西部凹陷深层沙河街组沉积相模式[J].古地理学报,1999,1(3):40-49.Yu Xinghe,Zhang Daojian,Gao Jianjun,et al.Journal of Palaeogeogaphy,1999,1(3):40-49.
[10]胡受权,郭文平,刘树根,等.断陷湖盆陡坡带陆相层序地层学模式研究——以泌阳断陷双河─赵凹地区下第三系核三上段为例[J].长春科技大学学报,1999,29(2):151-156.Hu Shouquan,Guo Wenping,Liu Shugen,et al.Journal of Changchun University of Science and Technology,1999,29(2):151-156.
[11]朱建伟,刘招君,董清水,等.松辽盆地层序地层格架及油气聚集规律[J].石油地球物理勘探,2001,36(3):339-344.Zhu Jianwei,Liu Zhaojun,Dong Qingshui,et al.Oil Geophysical Prospecting,2001,36(3):339-344.
[12]Andrew D.Miall:Architecture and sequence stratigraphy of Pleist-ocenefluvial systems in the Malay Basin,based on seismic time-slice analysis[J].AAPG Bulletin,2002,86(7):1201-1216.
[13]Shanmugam G,Bloch R B,Mitchell S M,et al.Basin-floor fans ithe North Sea:Sequence stratigraphic models vs.sedimentary facies[J].AAPG Bulletin,1995,79(4):477-512.
[14]Galloway W E.Genetic stratigraphic sequences in basin analysis II:Application to northwest Gulf of Mexico Cenozoic basin[J].AAPG Bulletin,1989,73(2):143-154.
[15]Xue L,Galloway W E.High-resolution depositional framework of the Paleocene middle Wilcox strata,Texas coastal plain[J].AAPG Bulletin,1995,79(2):205-230.
[16]Xue L,Galloway W E.Genetic sequence stratigraphic framework,depositional style,and hydrocarbon occurrence of the upper cretaceous QYN formations in the Songliao lacustrine basin,northeastern China[J].AAPG Bulletin,1993,77(10):1792-1808.
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