辫状河三角洲砂体内部构型表征及剩余油分布规律研究
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摘要
为了进一步剖析辫状河三角洲前缘储集层内部构型,深入挖掘该类储集层内剩余油,以北大港地区唐家河油田东三段辫状河三角洲沉积为例,通过储集层内部构型解剖,开展唐家河油田东三段辫状河三角洲沉积构型界面级次划分,并对单一分流河道或河口坝及其内部增生体进行构型分析,建立了三维构型模型,精细刻画河道砂体及内部夹层展布规律,进而分析构型控制下的各单砂体剩余油分布规律。研究成果用于唐家河油田东三段高水淹和低动用区块的综合调整治理,取得了较好效果,对同类储集层的构型研究和油藏开发调整具有借鉴意义。
In order to further analyze the internal architecture of braided river delta front reservoir and to tap remaining oil in the reservoir,the braided river delta deposition in Dong Ⅲ formation of Tangjiahe oilfield in Beidagang area was taken as an example.Through the anatomy of the internal architecture of the reservoir,the interface grade division of the braided river delta sedimentary architecture in Dong Ⅲ formation of Tangjiahe area was carried out.The architecture analysis of single distributary channel or mouth bar and its internal accretion sand bodies was carried out.A three-dimensional architecture model was established,and the distribution law of the channel sand body and internal interlayer was finely characterized to analyze the distribution law of remaining oil of each single sand body under the architecture control.The research results have been used in the comprehensive adjustment and management of blocks with the high water flooding and low degree of development in Dong Ⅲ formation,and achieved good results,which can be used for reference to the architecture study of similar reservoirs and the development and adjustment of oil reservoirs.
In order to further analyze the internal architecture of braided river delta front reservoir and to tap remaining oil in the reservoir,the braided river delta deposition in Dong Ⅲ formation of Tangjiahe oilfield in Beidagang area was taken as an example.Through the anatomy of the internal architecture of the reservoir,the interface grade division of the braided river delta sedimentary architecture in Dong Ⅲ formation of Tangjiahe area was carried out.The architecture analysis of single distributary channel or mouth bar and its internal accretion sand bodies was carried out.A three-dimensional architecture model was established,and the distribution law of the channel sand body and internal interlayer was finely characterized to analyze the distribution law of remaining oil of each single sand body under the architecture control.The research results have been used in the comprehensive adjustment and management of blocks with the high water flooding and low degree of development in Dong Ⅲ formation,and achieved good results,which can be used for reference to the architecture study of similar reservoirs and the development and adjustment of oil reservoirs.
引文
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[2] 王冠民,李明鹏.胜利油田永8断块沙二段辫状河三角洲前缘储层构型特征[J].地球科学与环境学报,2015,37(6):10-21.WANG Guanmin,LI Mingpeng.Reservoir architecture characteristics of braided river delta front in the second member of Shahejie Formation,Yong 8 fault block,Shengli Oilfield[J].Journal of Earth Sciences and Environment,2015,37(6):10-21.
[3] 吴胜和,纪友亮,岳大力,等.碎屑沉积地质体构型分级方案探讨[J].高校地质学报,2013,19(1):12-22.WU Shenghe,JI Youliang,YUE Dali,et al.Discussion on hierarchical scheme of architectural units in clastic deposits[J].Geological Journal of China Universities,2013,19(1):12-22.
[4] 李志鹏,林承焰,董波,等.河控三角洲水下分流河道砂体内部建筑结构模式[J].石油学报,2012,33(1):101-105.LI Zhipeng,LIN Chengyan,DONG Bo,et al.An internal structure model of subaqueous distributary channel sands of the fluvial-dominated delta[J].Acta Petrolei Sinica,2012,33(1):101-105.
[5] 于兴河,王德发,郑浚茂,等.辫状河三角洲砂体特征及砂体展布模型:内蒙古岱海湖现代三角洲沉积考察[J].石油学报,1994,15(1):26-36.YU Xinghe,WANG Defa,ZHENG Junmao,et al.3D extension models of braided deltaic sand body in terrestrial facies:An observation on deposition of modern deltas in Daihai lake,Inner Mongolia[J].Acta Petrolei Sinica,1994,15(1):26-36.
[6] 王振奇,何贞铭,张昌民,等.三角洲前缘露头储层层次分析:以鄂尔多斯盆地东缘潭家河剖面为例[J].江汉石油学院学报,2004,26(3):32-35.WANG Zhenqi,HE Zhenming,ZHANG Changmin,et al.Analysis on reservoir hierarchy of deltaic front outcrops:Taking Tanjiahe outcrop in eastern Ordos Basin for example[J].Journal of Jianghan Petroleum Institute,2004,26(3):32-35.
[7] 岳大力,吴胜和,程会明,等.基于三维储层构型模型的油藏数值模拟及剩余油分布模式[J].中国石油大学学报(自然科学版),2008,32(2):21-27.YUE Dali,WU Shenghe,CHENG Huiming,et al.Numerical reservoir simulation and remaining oil distribution patterns based on 3D reservoir architecture model[J].Journal of China University of Petroleum(Edition of Natural Science),2008,32(2):21-27.
[8] 曾祥平.储集层构型研究在油田精细开发中的应用[J].石油勘探与开发,2010,37(4):483-489.ZENG Xiangping.Application of reservoir structure research in the fine exploitation of oilfields[J].Petroleum Exploration and Development,2010,37(4):483-489.