徐家围子断陷火山间歇期沙河子组发育特征及其存在火山机构的探讨
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摘要
徐家围子断陷沙河子组为火石岭组和营城组两期主要火山活动间歇期的产物,也是营城组火山岩气藏的主要气源.本文在徐家围子断陷整体研究的基础上,利用连片三维地震和钻井资料,整体剖析了沙河子组的分布规律和地层发育特征.在沉积相类型分析的基础上,识别出沙河子组沉积相带的空间分布特征,沙河子组呈现以湖泊为中心、周边水系向湖盆汇聚的陆相断陷特点.沙河子组地层表现为由下段的湖泊环境向上段的河流冲积环境演替特点,反映了水进至水退的演化趋势.在徐西断裂带上发现孤立的火山机构,从其赋存状态、地层接触关系及碎屑组成来看,应归属于沙河子时期.
Shahezi formation is the product of a quiet period of intermittent volcano,between two main volcanic products of Huoshiling and Yingcheng formation.It's also the main gas source of the Yingcheng formation volcanic gas reservoir in Xujiaweizi depression.On the basis of the study on whole Xujiaweizi depression,the authors analyze the distribution and growth characteristics of the Shahezi formation,using the three-dimensional seismic and drilling data.Based on the analysis of existing types of sedimentary fades,the spatial distribution of Shahezi formation sedimentary facies is predicted,indicating the features of the formation centered at the lake with surrounding water systems converging to the depression.The whole sedimentary facies of Shahezi formation evolved from the lower segment of the lake environment to the upper segment fluvial environment,which reflects the trend of the water expansion to contraction.Based on their mode of occurrence,stratigraphic contact relationship and typical deposition,the isolated volcanic edifice developed on the Xuxi fault should be attributed to the period of Shahezi.
Shahezi formation is the product of a quiet period of intermittent volcano,between two main volcanic products of Huoshiling and Yingcheng formation.It's also the main gas source of the Yingcheng formation volcanic gas reservoir in Xujiaweizi depression.On the basis of the study on whole Xujiaweizi depression,the authors analyze the distribution and growth characteristics of the Shahezi formation,using the three-dimensional seismic and drilling data.Based on the analysis of existing types of sedimentary fades,the spatial distribution of Shahezi formation sedimentary facies is predicted,indicating the features of the formation centered at the lake with surrounding water systems converging to the depression.The whole sedimentary facies of Shahezi formation evolved from the lower segment of the lake environment to the upper segment fluvial environment,which reflects the trend of the water expansion to contraction.Based on their mode of occurrence,stratigraphic contact relationship and typical deposition,the isolated volcanic edifice developed on the Xuxi fault should be attributed to the period of Shahezi.
引文
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[17] Wang P J,Liu W Z,Wang S X,et al.~(40) Ar/~(39) Ar and K/Ar dating on the volcanic rocks in the Songliao basin,NE China:constraints on stratigraphy and basin dynamics.International Journal of Earth Sciences,2002,91:331～340
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[19] 王璞珺,迟元林,刘万洙等.松辽盆地火山岩相:类型、特征和储层意义.吉林大学学报(地球科学版),2003,33(4) :449～456 Wang P J,Chi Y L,Liu W Z,et al.Volcanic facies of the Songliao Basin:classification,characteristics and reservior signficance.Journal of Jilin University (Earth Science Edition) (in Chinese),2003,33(4) :449～456
[20] 姜传金,冯肖宇,詹怡捷等.松辽盆地北部徐家围子断陷火山岩(藏勘探新技术.大庆石油地质与开发,2007,26(4) :133～137 Jiang C J,Feng X Y,Zhan Y J,et al.New methodology to explore gas-bearing volcanic reservoir in Xujiaweizi Fault Depression of the northern Songliao Basin.Petroleum Geology & Oilfield Development in Daqing (in Chinese),2007,26(4) :133～137
[21] 张永忠,何顺利,周晓峰等.兴城南部深层气田火山机构地震反射特征识别.地球学报,2008,29(5) :577～581 Zhang Y Z,He S L,Zhou X F,et al.Seismic reflective characteristics of the volcanic apparatus of the deep gas field in southern Xingcheng area.Acta Geoscientica Sinica (in Chinese),2008,29(5) :577～581
[2] 邱春光,王璞珺.试论盆地内火山岩地层发育的层序位置--以松辽盆地徐家围子断陷为例.新疆石油天然气,2006,2(1) :13～18 Qiu C G,Wang P J.Preliminary study on sequence s location of volcanic stratigraphy in sedimentary basin-an example from Xujiaweizi depression of Songliao basin.Xinjiang Oil & Gas (in Chinese),2006,2(1) :13～18
[3] Feng Z Q,Jia C Z,Xie X N,et al.Tectonostratigraphic units and stratigraphic sequences of the nonmarine Songliao basin,northeast China.Basin Research,2010,22(1) :79～95
[4] 金晓辉,林壬子,邹华耀.松辽盆地徐家围子断陷火山活动期次与烃源岩演化.石油与天然气地质,2005,26(3) :349～355 Jin X H,Lin R Z,Zhou H Y.Volcanic activities and evolution of source rocks in Xujiaweizi fault depression,Songliao basin.Oil & Gas Geology (in Chinese),2005,26(3) :349～355
[5] 王志宏,罗霞,李景坤.松辽盆地北部深层有效烃源岩分布预测.天然气地球科学,2008,19(2) :204～209 Wang Z H,Luo X,Li J K.Effective source rock forecasting in deep layers of northern Songliao basin.Natural Gas Geoscience (in Chinese),2008,19(2) :204～209
[6] 徐立恒,卢双舫,陈践发.徐家围子断陷深层烃源岩生气评价.石油学报,2008,29(6) :846～852 Xu L H,Lu S F,Chen J F.Gas-generation evaluation of deep hydrocarbon source rocks in Xujiaweizi fault depression.Acta Petrolei Sinica (in Chinese),2008,29(6) :846～852
[7] 张元高,陈树民,张尔华.徐家围子断陷构造地质特征研究新进展.岩石学报,2010,26(1) :142～148 Zhang Y G,Chen S M,Zhang E H.The new progress of Xujiaweizi fault depression characteristics of structural geology research.Acta Petrologica Sinica (in Chinese),2010,26(1) :142～148
[8] 张尔华,姜传金,张元高等.徐家围子断陷深层结构形成与演化的探讨.岩石学报,2010,26(1) :149～157 Zhang E H,Jiang C J,Zhang Y G,et al.Study on the formation and evolution of deep structure of Xujiaweizi fault depression.Acta Petrologica Sinica (in Chinese),2010,26(1) :149～157
[9] 牟中海,刘继山,徐洁.准噶尔盆地陆西地区上石炭统上层序火山岩岩相研究.天然气地球科学,2010,21(1) :47～53 Mu Z H,Liu J S,Xu J.Lithofacies of volcanic rock at the top of upper carboniferous stratigraphy in Luxi area of Junggar basin.Natural Gas Geoscience (in Chinese),2010,21(1) :47～53
[10] 赵俊峰,刘池洋,梁积伟等.鄂尔多斯盆地直罗组-安定组沉积期原始边界恢复.地质学报,2010,84(4) :553～568 Zhao J F,Liu C Y,Liang J W,et al.Restoration of the original sedimentary boundary of the middle Jurassic Zhiluo formation-Anding formation in the Ordos Basin.Acta Geologica Sinica (in Chinese),2010,84(4) :553～568
[11] 王树刚,李红梅,魏文等.东营凹陷北带深层砂砾岩体的地震预测方法.石油物探,2009,48(6) :584～590 Wang S G,Li H M,Wei W,et al.Seismic prediction method for deep glutinite bodies in the northern zone of Dongying Depression.Geophysical Prospecting for Petroleum (in Chinese),2009,48(6) :584～590
[12] 赵国连,何顺利.松辽盆地徐家围子裂陷式盆地的层序发育特点.西北地质,2002,35(1) :28～40 Zhao G L,He S L.Sequence characteristics of rifting basin of Xujiaweizi in Songliao Basin.North Western Geology (in Chinese),2002,35(1) :28～40
[13] Zeng H L,Backus M M,Barrow K T,et al.Stratal slicing,Part Ⅰ:Realistic 3-D seismic model.Geophysics,1998,63(2) :502～513
[14] Zeng H L,Ambrose W A.Seismic sedimentology and regional depositional systems in Mioceno Norte,Lake Maracaibo,Venezuela.The Leading Edge,2001,20(11) :1260～1269
[15] 魏嘉,朱文斌,朱海龙等.地震沉积学--地震解释的新思路及沉积研究的新工具.勘探地球物理进展,2008,31(2) :95～101 Wei J,Zhu W B,Zhu H L,et al.Seismic sedimentology:a new idea for seismic interpretation and new tool for sedimentological studies.Progress in Exploration Geophysics (in Chinese),2008,31(2) :95～101
[16] 李秀鹏,曾洪流,查 明.地震沉积学在识别三角洲沉积体系中的应用.成都理工大学学报(自然科学版),2008,35(6) :625～629 Li X P,Zeng H L,Zha M.Mapping deltaic depositional systems using seismic sedimentology.Journal of Chengdu University of Technology (Science & Technology Edition) (in Chinese),2008,35(6) :625～629
[17] Wang P J,Liu W Z,Wang S X,et al.~(40) Ar/~(39) Ar and K/Ar dating on the volcanic rocks in the Songliao basin,NE China:constraints on stratigraphy and basin dynamics.International Journal of Earth Sciences,2002,91:331～340
[18] 蒙启安,王璞珺,杨宝俊.松辽盆地断陷期超层序界面的地质属性刻画及其油气地质意义.地质论评,2005,51(1) :46～54 Meng Q A,Wang P J,Yang B J.Geological signatures of sequence boundary of the Songliao Basin:new interpretation and their relation to gas accumulation.Geological Review (in Chinese),2005,51(1) :46～54
[19] 王璞珺,迟元林,刘万洙等.松辽盆地火山岩相:类型、特征和储层意义.吉林大学学报(地球科学版),2003,33(4) :449～456 Wang P J,Chi Y L,Liu W Z,et al.Volcanic facies of the Songliao Basin:classification,characteristics and reservior signficance.Journal of Jilin University (Earth Science Edition) (in Chinese),2003,33(4) :449～456
[20] 姜传金,冯肖宇,詹怡捷等.松辽盆地北部徐家围子断陷火山岩(藏勘探新技术.大庆石油地质与开发,2007,26(4) :133～137 Jiang C J,Feng X Y,Zhan Y J,et al.New methodology to explore gas-bearing volcanic reservoir in Xujiaweizi Fault Depression of the northern Songliao Basin.Petroleum Geology & Oilfield Development in Daqing (in Chinese),2007,26(4) :133～137
[21] 张永忠,何顺利,周晓峰等.兴城南部深层气田火山机构地震反射特征识别.地球学报,2008,29(5) :577～581 Zhang Y Z,He S L,Zhou X F,et al.Seismic reflective characteristics of the volcanic apparatus of the deep gas field in southern Xingcheng area.Acta Geoscientica Sinica (in Chinese),2008,29(5) :577～581
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