塔河地区志留系柯坪塔格组下段沉积相研究
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摘要
志留系柯坪塔格组作为塔河碎屑岩领域勘探的重点层系之一,随着立体勘探的实施,展现出了良好的勘探前景,但一些沉积相认识上的瓶颈制约着该层系勘探的深入和井位的部署。文章以沉积学、地球物理和地球化学方法为指导,综合利用岩芯、测井和地震资料,并结合粒度、微量元素及重矿物分析,明确了志留系柯坪塔格组下段的沉积相类型及物源方向。研究认为,柯下段主要发育河流相、潮坪相以及浅海陆棚相沉积。其中,下亚段发育河道及潮上—潮间带泥坪沉积,中亚段发育浅海陆棚相沉积,上亚段则发育潮间坪的砂坪—混合坪沉积;柯坪塔格组下段的母岩主要来自于北西方向前寒武系的岩浆岩和变质岩。
Silurian Kepingtage Formation is the key formation of clastic rock exploration in Tahe area. With the implementation of the three-dimensional exploration,showing good potential for further exploration. But lack of intergraded study on sedimentary facies restricts the deep exploration in future and well placement. Core analysis,logging response and seismic data are applied for sedimentary facies identification and source direction in combination of the study of trace elements and grain size in the guidance of Sedimentology,Geophysical and Geochemical. Study suggests that,the lower member of Kepingtage Formation is channel,tidal flat and shallow shelf. And S1k1-1is channel and mud flat deposition,S1k1-2is the continental shelf facies,S1k1-3is sand flat deposition. The origin of rock mainly comes from the igneous and metammorphic rocks of Cambrian in north-west.
Silurian Kepingtage Formation is the key formation of clastic rock exploration in Tahe area. With the implementation of the three-dimensional exploration,showing good potential for further exploration. But lack of intergraded study on sedimentary facies restricts the deep exploration in future and well placement. Core analysis,logging response and seismic data are applied for sedimentary facies identification and source direction in combination of the study of trace elements and grain size in the guidance of Sedimentology,Geophysical and Geochemical. Study suggests that,the lower member of Kepingtage Formation is channel,tidal flat and shallow shelf. And S1k1-1is channel and mud flat deposition,S1k1-2is the continental shelf facies,S1k1-3is sand flat deposition. The origin of rock mainly comes from the igneous and metammorphic rocks of Cambrian in north-west.
引文
1林畅松,李思田,刘景彦,等.塔里木盆地古生代重要演化阶段的古构造格局与古地理演化[J].岩石学报,2011,27(1):210-218.[Lin Changsong,Li Sitian,Liu Jingyan,et al.Tectonic framework and paleogeographic evolution of the Tarim Basin during the Paleozoic major evolutionary stages[J].Acta Petrologica Sinica,2011,27(1):210-218.]
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3 叶德胜.塔里木盆地北部寒武—奥陶系碳酸盐岩的深部溶蚀作用[J].沉积学报,1994,12(1):66-71.[Ye Desheng.Deep dissolution of Cambrian-Odovician carbonates in the northern Tarin Basin[J].Acta Sedimentologica Sinica,1994,12(1):66-71.]
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5 朱筱敏,王贵文,谢庆宾.塔里木盆地志留系沉积体系及分布特征[J].石油大学学报:自然科学版,2002,26(3):5-11.[Zhu Xiaomin,Wang Guiwen,Xie Qingbin.Characteristics and distribution of depositional systems of Silurian in Tarim Basin[J].Journal of the University of Petroleum,China:Edition of Natural Science,2002,26(3):5-11.]
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7 Jiang Zaixing,Wang Yue,Wei Chuigao.Hemipelagic deposition of the Silurian Kepingtage Formation in Tarim Basin and its sedimentologic significance[J].Journal of Earth Science,2009,20(6):921-931.
8 陈占坤,张忠民,冯兴强.塔河油田志留系沉积相及层序地层学研究[J].石油地质与工程,2009,23(6):1-4.[Chen Zhankun,Zhang Zhongmin,Feng Xingqiang.Researches on sedimentary facies and sequences stratigraphy of Silurian in Tahe oilfield[J].Petroleum Geology and Engineering,2009,23(6):1-4.]
9 丁勇,王允诚,徐明军.塔河油田志留系成藏条件分析[J].石油实验地质,2005,27(3):232-237.[Ding Yong,Wang Yuncheng,Xu Mingjun.Analysis of Silurian reservoir-formation condition in Tahe oilfield[J].Petroleum Geology&Experiment,2005,27(3):232-237.]
10 万维.塔里木盆地塔河油田志留系柯坪塔格组—石炭系巴楚组层序地层研究[D].成都:成都理工大学,2008:24-31.[Wan Wei.The researches of Silurian Kepingtage group-Carboniferous Bachu Group sequence deformation in Tahe oilfield of Tarim Basin[D].Chengdu:Chengdu University of Technology,2008:24-31.]
11 张士,李国胜.河南义马石千峰组沉积环境探讨[J].地质论评,1989,35(4):374-382.[Zhang Shi,Li Guosheng.The depositional environments of the Shiqianfeng Formation in Yima,Henan province[J].Geological Review,1989,35(4):374-382.]
12 林治家,陈多福,刘芊.海相沉积氧化还原环境的地球化学识别指标[J].矿物岩石地球化学通报,2008,27(1):72-80.[Lin Zhijia,Chen Duofu,Liu Qian.Geochemical indices for redox conditions of marine sediments[J].Bulletin of Mineralogy,Petrology and Geochemistry,2008,27(1):72-80.]
13 姜华,汪泽成,王华,等.地震沉积学在塔北哈拉哈塘地区古河道识别中的应用[J].中南大学学报:自然科学版,2011,42(12):3804-3810.[Jiang Hua,Wang Zecheng,Wang Hua,et al.Recognizing palae-channels in Halahatang area,North Tarim by seismic sedimentology[J].Journal of Central South University:Science and Technology,2011,42(12):3804-3810.]
14 姜在兴.沉积体系及层序地层学研究现状及发展趋势[J].石油与天然气地质,2010,31(5):535-541.[Jiang Zaixing.Studies of depositional systems and sequence stratigraphy:the present and the future[J].Oil&Gas Geology,2010,31(5):535-541.]
15 操应长,宋玲,王健,等.重矿物资料在沉积物物源分析中的应用——以涠西南凹陷古近系流三段下亚段为例[J].沉积学报,2011,29(5):835-841.[Cao Yingchang,Song Ling,Wang Jian,et al.Application of heavy mineral data in the analysis of sediment source:A case study in the Paleogene lower submember of the third member of the Liushagang Formation,Weixinan depression[J].Acta Sedimentologica Sinica,2011,29(5):835-841.]
16 邬光辉,孙建华,郭群英,等.塔里木盆地碎屑锆石年龄分布对前寒武纪基底的指示[J].地球学报,2010,31(1):65-72.[Wu Guanghui,Sun Jianhua,Guo Qunying,et al.The distribution of detrital zircon U-Pb ages and its significance to Precambrian basement in Tarim Basin[J].Acta Geoscientica Sinica,2010,31(1):65-72.]
2 孙乃泉,云露,蒲仁海,等.塔里木盆地顺9井区柯坪塔格组下段沉积微相与储层展布[J].吉林大学学报:地球科学版,2013,43(6):1716-1725.[Sun Naiquan,Yun Lu,Pu Renhai,et al.The microfacies and reservoir distribution of the lower member of Kepingtage Formation in Shun 9 Well Area in Tarim Basin[J].Journal of Jilin University:Earth Science Edition,2013,43(6):1716-1725.]
3 叶德胜.塔里木盆地北部寒武—奥陶系碳酸盐岩的深部溶蚀作用[J].沉积学报,1994,12(1):66-71.[Ye Desheng.Deep dissolution of Cambrian-Odovician carbonates in the northern Tarin Basin[J].Acta Sedimentologica Sinica,1994,12(1):66-71.]
4 朱筱敏,王贵文,谢庆宾.塔里木盆地志留系层序地层特征[J].古地理学报,2001,3(2):64-71.[Zhu Xiaomin,Wang Guiwen,Xie Qingbin.Sequence stratigraphy of Silurian in Tarim Basin[J].Journal of Palaeogeography,2001,3(2):64-71.]
5 朱筱敏,王贵文,谢庆宾.塔里木盆地志留系沉积体系及分布特征[J].石油大学学报:自然科学版,2002,26(3):5-11.[Zhu Xiaomin,Wang Guiwen,Xie Qingbin.Characteristics and distribution of depositional systems of Silurian in Tarim Basin[J].Journal of the University of Petroleum,China:Edition of Natural Science,2002,26(3):5-11.]
6 施振生,杨威,郭长敏,等.塔里木盆地志留纪沉积层序构成及充填响应特征[J].沉积学报,2007,25(3):401-408.[Shi Zhensheng,Yang Wei,Guo Changmin,et al.Depositional sequence and filling response characteristics of Silurian in Tarim Basin[J].Acta Sedimentologica Sinica,2007,25(3):401-408.]
7 Jiang Zaixing,Wang Yue,Wei Chuigao.Hemipelagic deposition of the Silurian Kepingtage Formation in Tarim Basin and its sedimentologic significance[J].Journal of Earth Science,2009,20(6):921-931.
8 陈占坤,张忠民,冯兴强.塔河油田志留系沉积相及层序地层学研究[J].石油地质与工程,2009,23(6):1-4.[Chen Zhankun,Zhang Zhongmin,Feng Xingqiang.Researches on sedimentary facies and sequences stratigraphy of Silurian in Tahe oilfield[J].Petroleum Geology and Engineering,2009,23(6):1-4.]
9 丁勇,王允诚,徐明军.塔河油田志留系成藏条件分析[J].石油实验地质,2005,27(3):232-237.[Ding Yong,Wang Yuncheng,Xu Mingjun.Analysis of Silurian reservoir-formation condition in Tahe oilfield[J].Petroleum Geology&Experiment,2005,27(3):232-237.]
10 万维.塔里木盆地塔河油田志留系柯坪塔格组—石炭系巴楚组层序地层研究[D].成都:成都理工大学,2008:24-31.[Wan Wei.The researches of Silurian Kepingtage group-Carboniferous Bachu Group sequence deformation in Tahe oilfield of Tarim Basin[D].Chengdu:Chengdu University of Technology,2008:24-31.]
11 张士,李国胜.河南义马石千峰组沉积环境探讨[J].地质论评,1989,35(4):374-382.[Zhang Shi,Li Guosheng.The depositional environments of the Shiqianfeng Formation in Yima,Henan province[J].Geological Review,1989,35(4):374-382.]
12 林治家,陈多福,刘芊.海相沉积氧化还原环境的地球化学识别指标[J].矿物岩石地球化学通报,2008,27(1):72-80.[Lin Zhijia,Chen Duofu,Liu Qian.Geochemical indices for redox conditions of marine sediments[J].Bulletin of Mineralogy,Petrology and Geochemistry,2008,27(1):72-80.]
13 姜华,汪泽成,王华,等.地震沉积学在塔北哈拉哈塘地区古河道识别中的应用[J].中南大学学报:自然科学版,2011,42(12):3804-3810.[Jiang Hua,Wang Zecheng,Wang Hua,et al.Recognizing palae-channels in Halahatang area,North Tarim by seismic sedimentology[J].Journal of Central South University:Science and Technology,2011,42(12):3804-3810.]
14 姜在兴.沉积体系及层序地层学研究现状及发展趋势[J].石油与天然气地质,2010,31(5):535-541.[Jiang Zaixing.Studies of depositional systems and sequence stratigraphy:the present and the future[J].Oil&Gas Geology,2010,31(5):535-541.]
15 操应长,宋玲,王健,等.重矿物资料在沉积物物源分析中的应用——以涠西南凹陷古近系流三段下亚段为例[J].沉积学报,2011,29(5):835-841.[Cao Yingchang,Song Ling,Wang Jian,et al.Application of heavy mineral data in the analysis of sediment source:A case study in the Paleogene lower submember of the third member of the Liushagang Formation,Weixinan depression[J].Acta Sedimentologica Sinica,2011,29(5):835-841.]
16 邬光辉,孙建华,郭群英,等.塔里木盆地碎屑锆石年龄分布对前寒武纪基底的指示[J].地球学报,2010,31(1):65-72.[Wu Guanghui,Sun Jianhua,Guo Qunying,et al.The distribution of detrital zircon U-Pb ages and its significance to Precambrian basement in Tarim Basin[J].Acta Geoscientica Sinica,2010,31(1):65-72.]