鄂尔多斯盆地东缘北段晚古生代沉积相研究——以X区块为例
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
基于岩心、测井、地震及分析化验资料,在区域研究基础上,以X区块为例,对鄂尔多斯盆地东缘北段晚古生代开展了沉积相研究。在研究区共识别出潮坪、沼泽、三角洲、曲流河、辫状河等沉积相类型。通过井震标定及地震相特征分析,河道(分流河道)砂体在剖面上表现为弱振幅、低频不连续、杂乱反射;河漫滩及分流河道间湾表现为强振幅、高频连续反射特征,反射界面较为清楚;垂直河道走向剖面上其外形为顶平底凹或顶凸底凹的透镜体状,内部杂乱或无反射,或为上超式充填反射。从研究区平面沉积相展布图来看,本区发育的河流-三角洲沉积大致呈南北向展布,河道宽约2km~3km,河道叠置区为研究区有利储层最为发育区。
Based on core,well log,seismic and testing data,and region geological analysis,we study sedimentary facies of north section of eastern Ordos basin in late paleozoic taking the X block as an example.Several sedimentary facies types are identifies in the study block,including tidal-flat,marsh,delta,meandering and braided river.By well- seismic facies analyzing,channel(distributary channel)sand bodies show weak amplitude,low frequency discontinuity,chaotic seismic reflection configuration,silty mud from flood-plain and distributary bay shows strong amplitude,high frequency continuity characteristics,reflecting interface is clear.The channel shows lenticular shape in seismic profile,chaotic seismic reflection configuration,oronlapfill.By sedimentary facies distribution of the area,fluvial-delta extend along south and north direction,channel width is about 2km ~3km,stacked channels area is the optimum reservoir development area.
引文
[1]贾承造,郑民,张永峰.中国非常规油气资源与勘探开发前景[J].石油勘探与开发,2012,39(2):129-136.JIA CH Z,ZHENG M,ZHANG Y F.Unconventional hydrocarbon resources in China and the prospect of exploration and development[J].PETROLEUM EXPLORATION AND DEVELOPMENT,2012,39(2):129-136.(In Chinese)
    [2]李剑,魏国齐,谢增业,等.中国致密砂岩大气田成藏机理与主控因素——以鄂尔多斯盆地和四川盆地为例[J].石油学报,2013,34(增):14-28.LI J,WEI G Q,XIE Z Y,et al.Accumulation mechanism and main controlling factors of large tight sandstone gas fields in China:cases study on Ordos basin and Sichuan basin[J].ACTA PETROLEI SINICA,2013,34(supplement):14-28.(In Chinese)
    [3]杨华,付金华,刘新社,等.鄂尔多斯盆地上古生界致密气成藏条件与勘探开发[J].石油勘探与开发,2012,39(3):295-303.YANG H,FU J H,LIU X SH,et al.Accumulation conditions and exploration and development of tight gas in the Upper Paleozoic of the Ordos Basin[J].PETROLEUM EXPLORATION AND DEVELOPMENT,2012,39(3):295-303.(In Chinese)
    [4]杨华,刘新社.鄂尔多斯盆地古生界煤成气勘探进展[J].石油勘探与开发,2014,41(2):129-137.YANG H,LIU X SH.Progress of paleozoic coalderived gas exproation in Ordos basin,west China[J].PETROLEUM EXPLORATION AND DEVELOPMENT,2014,41(2):129-137.(In Chinese)
    [5]杨华,刘新社,杨勇.鄂尔多斯盆地致密气勘探开发形势与未来发展展望[J].中国工程科学,2012,14(6):40-48.YANG H,LIU X SH,YANG Y.Status and prospects of tight gas exploration and development in the Ordos basin[J].Engineering Science,2012,14(6):40-48.(In Chinese)
    [6]长庆油田石油地质志编写组.中国石油地质志(卷12)长庆油田[M].北京:石油工业出版社,1992.Compiling by the petroleum geology of changqing oilfield.China petroleum geology(Volume 12):Changqing oilfield[M].Beijing:Petroleum industry Press,1992.(In Chinese)
    [7]乔建新,邓辉,刘池洋,等.鄂尔多盆地北部晚古生代沉积-构造格局及物源分析[J].西安石油大学学报:自然科学版,2013,28(1):12-17.QIAO J X,DENG H,LIU CH Y,et al.Sedimentarytectonic framework and Provenance analysis of the late Paleozoic in the northern Ordos basin[J].Journal of Xi'an Shiyou University(Natural Science Edition),2013,28(1):12-17.(In Chinese)
    [8]郭英海,刘焕杰,权彪,等.鄂尔多斯地区晚古生代沉积体系及古地理演化[J].沉积学报,1998,16(3):44-50.GUO Y H,LIU H J,QUANG B,et al.Late Paleozoic sedimentary system and paleographic evolution of Ordos area[J].ACTA SEDIMENTOLOGICA SINICA,1998,16(3):44-50.(In Chinese)
    [9]郭英海,刘焕杰.陕甘宁地区晚古生代沉积体系[J].古地理学报,2000,2(1):19-29.GUO Y H,LIU H J.The late paleozoic depositional systems of Shaanxi-Gansu-Ningxia area[J].Journal of Paleography,2000,2(1):19-29.(In Chinese)
    [10]郑荣才,文华国,梁西文.鄂尔多斯盆地上古生界高分辨率层序地层分析[J].矿物岩石,2002,22(4):66-74.ZHENG R C,WEN H G,LIANG X W.Analysis of high-resolution sequence stratigraphy for upper paleozoic in Ordos basin[J].Journal of Mineralogy and Petrology,2002,22(4):66-74.(In Chinese)
    [11]党犇.鄂尔多斯盆地构造沉积演化与下古生界天然气聚集关系研究[D].西安:西北大学,2003.DANG B.The tectonic and sedimentary evolution and its relationship to gas accumulation of lower paleozoic in Ordos basin[D].Xian:Northwest University,2003.(In Chinese)

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心