王官屯油田官195断块扇三角洲储层构型表征
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摘要
扇三角洲沉积体系广泛发育于中国多个断陷盆地中,作为一类重要的油气储层,其内部的构型表征对高含水期的剩余油分布预测具有重要的指导意义。以王官屯油田官195断块孔店组枣Ⅴ油组为例,结合岩心、测井数据和动态资料进行扇三角洲前缘储层的构型定量表征研究。官195断块扇三角洲前缘储层构型要素包括水下分流河道、河口坝、席状砂和水下分流河道间。建立了扇三角洲前缘构型级次划分方案,确立了水下分流河道、河口坝以及河口坝内部增生体间夹层的识别标志。以单砂层为研究单位,利用滦平盆地西瓜园组扇三角洲野外露头实测原型进行数据拟合,得出研究区水下分流河道和河口坝定量化表征的预测公式,计算河口坝内部夹层倾角,预测内部增生体的发育规模。单一成因砂体控制的剩余油分布于坝缘部位和河道顶部,夹层控制的剩余油分布需根据坝主体的韵律进行具体分析。
The fan deltas developed widely in several faulted basins in China. As a kind of important oil and gas reservoir,it is very necessary to make the internal architecture clear for prediction of the residual oil distribution in the late period of oilfield development. Therefore,taking the 5 thZao oil layer of Kongdian Formation in the faulted block Guan195 of Wangguantun Oilfield as an example,the reservoir architecture of fan delta front was characterized quantitatively based on core data,well logs and production data. The main reservoir architecture elements of fan delta front consists of distributary channel,estuary sandbar,sheet sand and inter channel. And then the division scheme was established for the division of reservoir architecture of fan delta front into different levels,and the markers was defined for the identification of distributary channel estuary sandbar and inner accretion body in estuary sandbar. Taking single sandbody as a unit,data,being acquired from field outcrop defined as fan delta in the Xiguayuan Formation of Luanping Basin,were matched to derive a formula for quantitative characterization of distributary channel and estuary sandbar,calculation of the dip of interbed inner estuary sandbar and prediction of the development of inner accretion body. The residual oil controlled by a single genetic sand body distributes at the top of the margin of sandbars and channels,and the distribution of residual oil controlled by the interlayer should be analyzed according to the specific rhythm of the sandbar.
The fan deltas developed widely in several faulted basins in China. As a kind of important oil and gas reservoir,it is very necessary to make the internal architecture clear for prediction of the residual oil distribution in the late period of oilfield development. Therefore,taking the 5 thZao oil layer of Kongdian Formation in the faulted block Guan195 of Wangguantun Oilfield as an example,the reservoir architecture of fan delta front was characterized quantitatively based on core data,well logs and production data. The main reservoir architecture elements of fan delta front consists of distributary channel,estuary sandbar,sheet sand and inter channel. And then the division scheme was established for the division of reservoir architecture of fan delta front into different levels,and the markers was defined for the identification of distributary channel estuary sandbar and inner accretion body in estuary sandbar. Taking single sandbody as a unit,data,being acquired from field outcrop defined as fan delta in the Xiguayuan Formation of Luanping Basin,were matched to derive a formula for quantitative characterization of distributary channel and estuary sandbar,calculation of the dip of interbed inner estuary sandbar and prediction of the development of inner accretion body. The residual oil controlled by a single genetic sand body distributes at the top of the margin of sandbars and channels,and the distribution of residual oil controlled by the interlayer should be analyzed according to the specific rhythm of the sandbar.
引文
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[12]宋璠,杨少春,苏妮娜,等.扇三角洲前缘储层构型界面划分与识别——以辽河盆地欢喜岭油田锦99区块杜家台油层为例[J].西安石油大学学报:自然科学版,2015,30(1):7-13.SONG Fan,YANG Shaochun,SU Nina,et al.Division and recognition of architecture interfaces of fan-delta front reservoir:taking Dujiatai reservoir of Jin-99 block in Huanxiling Oilfield,Liaohe Basin as an example[J].Journal of Xi’an Shiyou University:Natural Science Edition,2015,30(1):7-13.
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[14]MIALL A D.Geology of fluvial deposits:Sedimentary faces,basin analysis and petroleum geology[M].New York:Springer-Verlag,1996:57-98.
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[16]郭建林,贾爱林,何东博,等.滦平上侏罗统—下白垩统扇三角洲露头层序地层学研究[J].中国地质,2007,34(4):628-635.GUO Jianlin,JIA Ailin,HE Dongbo,et al.Sequence stratigraphy of Upper Jurassic-Lower Cretaceous fan-delta outcrops in Luanping[J].Geology in China,2007,34(4):628-635.
[17]贾爱林,何东博,何文祥,等.应用露头知识库进行油田井间储层预测[J].石油学报,2003,24(6):51-53.JIA Ailin,HE Dongbo,HE Wenxiang,et al.Application of outcrop geological knowledge database to prediction of inter-well reservoir in oilfield[J].Acta Petrolei Sinica,2003,24(6):51-53.
[18]温立峰,吴胜和,王延忠,等.河控三角洲河口坝地下储层构型精细解剖方法[J].中南大学学报:自然科学版,2011,42(4):1 072-1 078.WEN Lifeng,WU Shenghe,WANG Yanzhong,et al.An accurate method for anatomizing architecture of subsurface reservoir in mouth bar of fluvial dominated delta[J].Journal of Central South University:Science and Technology,2011,42(4):1 072-1 078.
[19]周新茂,高兴军,田昌炳,等.曲流河点坝内部构型要素的定量描述及应用[J].天然气地球科学,2010,21(3):421-426.ZHOU Xinmao,GAO Xingjun,TIAN Changbing,et al.Quantitative description of internal architecture in point bar of meandering river[J].Natural Gas Geoscience,2010,21(3):421-426.
[20]WANG Xixin,HOU Jiagen,LIU Yuming,et al.Studying reservoir heterogeneity by analytic hierarchy process and fuzzy logic,case study of Es1x formation of the Wangguantun oilfield,China[J].Journal of Petroleum Science&Engineering,2017,156(6):858-867.
[21]夏钦禹,吴胜和,冯文杰,等.河口坝储层构型控制的剩余油分布模式[J].复杂油气藏,2015,8(2):41-45.XIA Qinyu,WU Shenghe,FENG Wenjie,et al.Remaining oil distribution patterns controlled by mouthbar reservoir architecture[J].Complex Hydrocarbon Reservoirs,2015,8(2):41-45.
[2]解珺,胡望水,陈叔阳,等.塔河一区下油组辫状河三角洲储层构型分析[J].油气地质与采收率,2017,24(5):46-52.XIE Jun,HU Wangshui,CHEN Shuyang,et al.Reservoir architectural analysis of the braided fluvial delta of the lower oil layer in the 1stblock of Tahe Oilfield[J].Petroleum Geology and Recovery Efficiency,2017,24(5):46-52.
[3]闫百泉,张鑫磊,于利民,等.基于岩心及密井网的点坝构型与剩余油分析[J].石油勘探与开发,2014,41(5):597-604.YAN Baiquan,ZHANG Xinlei,YU Limin,et al.Point bar configuration and residual oil analysis based on core and dense well pattern[J].Petroleum Exploration and Development,2014,41(5):597-604.
[4]王珏,陈欢庆,周俊杰,等.扇三角洲前缘储层构型表征——以辽河西部凹陷于楼为例[J].大庆石油地质与开发,2016,35(2):20-28.WANG Jue,CHEN Huanqing,ZHOU Junjie,et al.Configuration characterization of the fan-delta-front reservoirs-taking Yulou oil layers in West Liaohe Sag as a case[J].Petroleum Geology&Oilfield Development in Daqing,2016,35(2):20-28.
[5]齐陆宁,杨少春,林博.河流相储层构型要素组合对剩余油分布影响[J].新疆地质,2010,28(1):69-72.QI Luning,YANG Shaochun,LIN Bo.Architectural-element combination in fluvial facies reservoir effects on remaining oil distribution[J].Xinjiang Geology,2010,28(1):69-72.
[6]罗晓容,张立宽,雷裕红,等.储层结构非均质性及其在深层油气成藏中的意义[J].中国石油勘探,2016,21(1):28-36.LUO Xiaorong,ZHANG Likuan,LEI Yuhong,et al.Structural heterogeneity of reservoirs and its implication on hydrocarbon accumulation in deep zones[J].China Petroleum Exploration,2016,21(1):28-36.
[7]封从军,鲍志东,杨玲,等.三角洲前缘水下分流河道储集层构型及剩余油分布[J].石油勘探与开发,2014,41(3):323-329.FENG Congjun,BAO Zhidong,YANG Ling,et al.Reservoir architecture and remaining oil distribution of deltaic front underwater distributary channel[J].Petroleum Exploration and Development,2014,41(3):323-329.
[8]袁静,梁绘媛,宋璠,等.韦5断块三角洲前缘储层构型及剩余油分布[J].西南石油大学学报:自然科学版,2015,37(6):1-11.YUAN Jing,LIANG Huiyuan,SONG Fan,et al.Delta front reservoir architectural characteristics and its relations with remained oil distribution in Wei-5 fault block,Gaoyou sag,Subei basin[J].Journal of Southwest Petroleum University:Science&Technology Edition,2015,37(6):1-11.
[9]刘钰铭,侯加根,王连敏,等.辫状河储层构型分析[J].中国石油大学学报:自然科学版,2009,33(1):7-11.LIU Yuming,HOU Jiagen,WANG Lianmin,et al.Architecture analysis of braided river reservoir[J].Journal of China University of Petroleum:Edition of Natural Science,2009,33(1):7-11.
[10]陈程,孙义梅,贾爱林.扇三角洲前缘地质知识库的建立及应用[J].石油学报,2006,27(2):53-57.CHEN Cheng,SUN Yimei,JIA Ailin.Development and application of geological knowledge database for fan-delta front in the dense spacing area[J].Acta Petrolei Sinica,2006,27(2):53-57.
[11]林煜,吴胜和,岳大力,等.扇三角洲前缘储层构型精细解剖——以辽河油田曙2-6-6区块杜家台油层为例[J].天然气地球科学,2013,24(2):335-344.LIN Yu,WU Shenghe,YUE Dali,et al.Fine anatomizing reservoir architecture of fan-delta front:A case study on Dujiatai reservoir in Shu2-6-6 block,Liaohe oilfield[J].Natural Gas Geoscience,2013,24(2):335-344.
[12]宋璠,杨少春,苏妮娜,等.扇三角洲前缘储层构型界面划分与识别——以辽河盆地欢喜岭油田锦99区块杜家台油层为例[J].西安石油大学学报:自然科学版,2015,30(1):7-13.SONG Fan,YANG Shaochun,SU Nina,et al.Division and recognition of architecture interfaces of fan-delta front reservoir:taking Dujiatai reservoir of Jin-99 block in Huanxiling Oilfield,Liaohe Basin as an example[J].Journal of Xi’an Shiyou University:Natural Science Edition,2015,30(1):7-13.
[13]兰志勤,杨少春,王燕.辽河油田锦99块扇三角洲前缘储层层次分析[J].沉积与特提斯地质,2015,35(4):77-84.LAN Zhiqin,YANG Shaochun,WANG Yan.Architectural boundaries of the fan delta front reservoirs in the quadrant Jin-99 of the Liaohe Oil Field,Liaoning[J].Sedimentary Geology and Tethyan Geology,2015,35(4):77-84.
[14]MIALL A D.Geology of fluvial deposits:Sedimentary faces,basin analysis and petroleum geology[M].New York:Springer-Verlag,1996:57-98.
[15]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.
[16]郭建林,贾爱林,何东博,等.滦平上侏罗统—下白垩统扇三角洲露头层序地层学研究[J].中国地质,2007,34(4):628-635.GUO Jianlin,JIA Ailin,HE Dongbo,et al.Sequence stratigraphy of Upper Jurassic-Lower Cretaceous fan-delta outcrops in Luanping[J].Geology in China,2007,34(4):628-635.
[17]贾爱林,何东博,何文祥,等.应用露头知识库进行油田井间储层预测[J].石油学报,2003,24(6):51-53.JIA Ailin,HE Dongbo,HE Wenxiang,et al.Application of outcrop geological knowledge database to prediction of inter-well reservoir in oilfield[J].Acta Petrolei Sinica,2003,24(6):51-53.
[18]温立峰,吴胜和,王延忠,等.河控三角洲河口坝地下储层构型精细解剖方法[J].中南大学学报:自然科学版,2011,42(4):1 072-1 078.WEN Lifeng,WU Shenghe,WANG Yanzhong,et al.An accurate method for anatomizing architecture of subsurface reservoir in mouth bar of fluvial dominated delta[J].Journal of Central South University:Science and Technology,2011,42(4):1 072-1 078.
[19]周新茂,高兴军,田昌炳,等.曲流河点坝内部构型要素的定量描述及应用[J].天然气地球科学,2010,21(3):421-426.ZHOU Xinmao,GAO Xingjun,TIAN Changbing,et al.Quantitative description of internal architecture in point bar of meandering river[J].Natural Gas Geoscience,2010,21(3):421-426.
[20]WANG Xixin,HOU Jiagen,LIU Yuming,et al.Studying reservoir heterogeneity by analytic hierarchy process and fuzzy logic,case study of Es1x formation of the Wangguantun oilfield,China[J].Journal of Petroleum Science&Engineering,2017,156(6):858-867.
[21]夏钦禹,吴胜和,冯文杰,等.河口坝储层构型控制的剩余油分布模式[J].复杂油气藏,2015,8(2):41-45.XIA Qinyu,WU Shenghe,FENG Wenjie,et al.Remaining oil distribution patterns controlled by mouthbar reservoir architecture[J].Complex Hydrocarbon Reservoirs,2015,8(2):41-45.